A3 Mk1: Vehicle electrics

Also for this vehicle: A3 (8PA) L4-2.0L DSL Turbo (CBEA) (2011), A3 (8PA) L4-2.0L Turbo (CCTA) (2011), A3 L4-2.0L DSL Turbo (CBEA) (2010), A3 L4-2.0L Turbo (BPY) (2006), A3 L4-2.0L Turbo (CBFA) (2008), A3 L4-2.0L Turbo (CCTA) (2010), A3 Mk2, A3 Quattro (8PA) L4-2.0L Turbo (CCTA) (2011), A3 Quattro L4-2.0L Turbo (CBFA) (2009), A3 Quattro L4-2.0L Turbo (CCTA) (2010), A3 Quattro V6-3.2L (BUB) (2008), A3 Quattro V6-3.2L (CBRA) (2009).

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

1. 01Running gearRunning gear: Sections
2. 02BodyBody: Sections
3. 03Power unitPower unit: Sections
4. 04Power transmissionPower transmission: Sections
5. 05Vehicle electricsVehicle electrics: Sections
   • Electrical system201 pages

     • Starter-current supply-CC26 pages

       • Battery13 pages

         • Overview

         • Notes on battery handling
         • Removing battery - Audi A3 up to Model Year 2000
         • Removing battery - Audi A3 as of Model Year 2001
         • Removing battery - Audi S3
         • Installing battery
         • Battery with magic eye
         • Visual inspection
         • Checking electrolyte level
         • No-load voltage measurement
         • Checking specific gravity of electrolyte of all cells
         • Measuring voltage under load
         • Charging battery
       • Removing and installing alternator10 pages

         • Overview

         • 1.6 l and 1.8 l engine
         • 1.8l turbo engine - Audi A3
         • 1.8l turbo engine - Audi S3
         • 1.9l TDI engine - distributor-type injection pump
         • 1.9l TDI engine - UIS
         • Replacing voltage regulator - Bosch alternator
         • Replacing voltage regulator - Valeo alternator
         • Removing and installing ribbed belt pulley without free-wheel
         • Removing and installing ribbed belt pulley with free-wheel
       • Removing and installing starter3 pages

         • Overview

         • Vehicles with 4-cylinder petrol engine
         • Vehicles with automatic gearbox 09A
     • Instruments, GCI18 pages

       • Dash panel insert - up to Model Year 199911 pages

         • Overview

         • "dEF" display on trip recorder
         • Removing and installing dash panel insert
         • Assignment of dash panel insert lamps - Model Year 1997
         • Assignment of dash panel insert lamps - as of Model Year 1998
         • Multi-pin connectors at dash panel insert
         • Assignment of contacts at multi-pin connectors at dash panel insert - Model Year 1997
         • Assignment of contacts at multi-pin connectors at dash panel insert - as of Model Year 1998
         • Connection assignment at fuel-gauge sender
         • Terminal assignment at coolant temperature sender -G2
         • Radio clock
       • Dash panel insert - as of Model Year 20007 pages

         • Overview

         • "dEF" display on trip recorder
         • Removing and installing dash panel insert
         • Multi-pin connectors at dash panel insert
         • Assignment of contacts at multi-pin connectors at dash panel insert
         • Terminal assignment at coolant temperature sender -G2
         • Radio clock
     • Windscreen wipe/wash system20 pages

       • Servicing windscreen wiper system4 pages

         • Overview

         • Removing and installing windscreen wiper system
         • Adjusting park position of wiper blades
         • Eliminating wiper judder
       • Servicing windscreen washer system4 pages

         • Overview

         • Removing and installing washer fluid reservoir
         • Removing and installing spray jets
         • Adjusting spray jets
       • Servicing rear window wipe/wash system8 pages

         • Overview

         • Removing and installing rear wiper
         • Removing and installing rear wiper motor
         • Removing and installing spray jet
         • Adjusting spray jet
         • Adjusting park position of wiper blade
         • Eliminating rear wiper judder
         • Removing and installing washer fluid reservoir
       • Servicing headlight washer system4 pages

         • Overview

         • Removing and installing spray jets of headlight washer system
         • Adjusting spray jets
         • Removing and installing washer fluid reservoir
     • Lights, lamps, switches outside78 pages

       • Servicing headlights - up to Model Year 200018 pages

         • Overview

         • Exploded view of halogen headlight
         • Exploded view of gas-discharge headlight
         • Removing and installing headlights
         • Adjusting headlights (halogen headlights)
         • Adjusting headlights (gas-discharge headlights)
         • Preparation for headlight bulb replacement/replacement of headlight range control motor
         • Replacing dipped beam bulb (halogen headlight)
         • Replacing main beam bulb (halogen headlight)
         • Replacing side light bulb (halogen headlight)
         • Replacing gas-discharge lamp for dipped beam (gas-discharge headlight)
         • Replacing main beam bulb (gas-discharge headlight)
         • Replacing side light bulb (gas-discharge headlight)
         • Replacing turn signal indicator bulb
         • Removing and installing headlight range control motor
         • Removing and installing gas-discharge lamp starter unit -N195
         • Installing repair set for headlight housing
         • Resetting headlights for driving on left/ right (gas-discharge headlights)
       • Servicing headlights - as of Model Year 200118 pages

         • Overview

         • Exploded view of halogen headlight
         • Exploded view of gas-discharge headlight
         • Removing and installing headlights
         • Adjusting headlights (halogen headlights)
         • Adjusting headlights (gas-discharge headlights)
         • Preparation for headlight bulb replacement/replacement of headlight range control motor
         • Replacing dipped beam bulb (halogen headlight)
         • Replacing main beam bulb (halogen headlight)
         • Replacing side light bulb (halogen headlight)
         • Replacing gas-discharge lamp for dipped beam (gas-discharge headlight)
         • Replacing main beam bulb (gas-discharge headlight)
         • Replacing side light bulb (gas-discharge headlight)
         • Replacing turn signal indicator bulb
         • Removing and installing headlight range control motor
         • Removing and installing gas-discharge lamp starter unit -N195
         • Installing repair set for headlight housing
         • Resetting headlights for driving on left/ right
       • Servicing fog lights - up to Model Year 20007 pages

         • Overview

         • Removing and installing fog lights (halogen headlights)
         • Replacing fog light bulbs (halogen headlights)
         • Adjusting fog lights (halogen headlights)
         • Removing and installing fog lights (gas-discharge headlights)
         • Replacing fog light bulbs (gas-discharge headlights)
         • Adjusting fog lights (gas-discharge headlights)
       • Servicing fog lights - vehicles as of Model Year 20014 pages

         • Overview

         • Removing and installing fog lights
         • Replacing fog light bulbs
         • Adjusting fog lights
       • Side-mounted turn signal indicators2 pages

         • Overview

         • Removing and installing side-mounted turn signal indicator
       • Servicing rear lights4 pages

         • Overview

         • Exploded view
         • Removing and installing rear light
         • Replacing bulbs for rear light
       • Servicing high-level brake light2 pages

         • Overview

         • Removing and installing high-level brake light
       • Servicing number plate light2 pages

         • Overview

         • Removing and installing number plate light
       • Steering column switch5 pages

         • Overview

         • Safety precautions when working on airbag
         • Removing and installing airbag unit
         • Removing and installing steering column switch
         • Terminal assignment at steering column switch
       • Servicing lock cylinder and ignition/starter switch4 pages

         • Overview

         • Removing and installing lock cylinder
         • Removing and installing ignition/starter switch
         • Connection assignment at ignition/starter switch
       • Servicing parking aid5 pages

         • Overview

         • Exploded view of parking aid
         • Removing and installing parking aid control unit -J446
         • Removing and installing rear parking aid warning buzzer -H15
         • Removing and installing rear parking aid sender
       • Servicing automatic headlight range control4 pages

         • Overview

         • Exploded view of automatic headlight range control
         • Removing and installing headlight range control unit -J431 - 3-door model
         • Removing and installing headlight range control unit -J431 - 5-door model
       • Servicing ultrasonic interior monitor3 pages

         • Overview

         • Removing and installing ultrasonic sensors for interior monitor
         • Removing and installing interior monitor control unit
     • Lights, lamps, switches inside, anti-theft system47 pages

       • Servicing switches21 pages

         • Overview

         • Removing and installing switches in centre console - up to Model Year 2000
         • Removing and installing switches in centre console - as of Model Year 2001
         • Removing and installing front seat heating switch - up to Model Year 2000
         • Removing and installing front seat heating switch - as of Model Year 2001
         • Removing and installing light switch
         • Removing and installing adjuster for manual headlight range control
         • Removing and installing switch for glove box light
         • Removing and installing function selection switch II -E272
         • Removing and installing mirror adjustment switch - 3-door model
         • Removing and installing mirror adjustment switch - 5-door model
         • Removing and installing window lifter switch - 3-door model
         • Removing and installing driver's window lifter switch - 5-door model
         • Removing and installing front passenger's window lifter switch - 5-door model
         • Removing and installing rear door window lifter switch
         • Removing and installing sun roof switch
         • Removing and installing door contact switch
         • Removing and installing front central locking switch
         • Removing and installing button for interior monitor
         • Removing and installing tailgate/boot lid contact switch - up to Model Year 2000
         • Removing and installing tailgate/boot lid contact switch - as of Model Year 2001
       • Servicing immobilizer5 pages

         • Overview

         • Defective transponder and/or loss of key
         • Replacing reader coil
         • Procedure for replacing lock set or dash panel insert
         • System test
       • Servicing interior lights14 pages

         • Overview

         • Removing and installing front interior light/reading light - up to Model Year 1999
         • Replacing bulbs for front interior light/reading light - up to Model Year 1999
         • Removing and installing front interior light/reading light - as of Model Year 2000
         • Replacing bulbs for front interior light - as of Model Year 2000
         • Replacing bulbs for front reading light - as of Model Year 2000
         • Removing and installing rear interior light - up to Model Year 1999
         • Replacing bulb for rear interior light - up to Model Year 1999
         • Removing and installing rear interior light/reading light - as of Model Year 2000
         • Replacing bulb for rear interior light/reading light - as of Model Year 2000
         • Removing and installing luggage compartment lights
         • Removing and installing glove box light
         • Removing and installing make-up mirror light
         • Removing and installing door safety light and entry light
       • Servicing lock cylinder heater2 pages

         • Overview

         • Removing and installing lock cylinder heater control unit
       • Servicing horns2 pages

         • Overview

         • Removing and installing horn
       • Servicing connection socket for towing hitch3 pages

         • Overview

         • Removing and installing connection socket for towing hitch
         • Terminal assignment at connection socket for towing hitch
     • Wiring12 pages

       • Relay carriers, fuse carriers7 pages

         • Overview

         • Removing and installing fuse box for main fuse
         • Removing and installing fuse box
         • Removing and installing central electrics and 13-position relay carrier
         • Left connector point
         • Right connector point
         • Relay carrier at bulkhead on left
       • Wiring harness and connector repair5 pages

         • Overview

         • General
         • Repairing 0.22 mm2/ 0.35 mm2 wire
         • Safety precautions for wiring harness and connector repair
         • Replacing aerial wires
   • Electrical system Self-diagnosis › Self diagnosis, V.A.G Inspection Service102 pages

     • Self-diagnosis3 pages

       • Overview

       • Safety precautions
       • Connecting up vehicle diagnostic, testing and information system VAS 5051 and selecting functions
     • Dash panel insert self-diagnosis up to Model Year 199913 pages

       • Overview

       • General information
       • Starting dash panel insert self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Final control diagnosis
       • Erasing fault memory
       • End of output
       • Encoding control unit
       • Reading measured value block
       • Adaption
       • Input values on dash panel insert replacement
       • Resetting service display on completion of service work (without VAS 5051)
     • Self-diagnosis of dash panel insert with Long Life Service as of Model Year 200014 pages

       • Overview

       • General information
       • Starting dash panel insert self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Final control diagnosis
       • Erasing fault memory
       • End of output
       • Encoding control unit
       • Reading measured value block
       • Adaption
       • Input values on dash panel insert replacement
       • Resetting service display on completion of service work (without VAS 5051)
       • Checking data exchange between control units
     • Immobilizer self-diagnosis - immobilizer I (fixed code)15 pages

       • Overview

       • General information
       • Starting immobilizer self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Erasing fault memory
       • End of output
       • Reading measured value block
       • Adaption
       • Establishing PIN
       • Matching of vehicle keys
       • Procedure in the event of loss of keys
       • Adaption following replacement of dash panel insert
       • Adaption following replacement of engine control unit
       • Emergency starting function with VAS 5051
     • Immobilizer self-diagnosis - immobilizer II (variable code)15 pages

       • Overview

       • General information
       • Starting immobilizer self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Erasing fault memory
       • End of output
       • Reading measured value block
       • Adaption
       • Establishing PIN
       • Matching of vehicle keys
       • Procedure in the event of loss of keys
       • Adaption following replacement of dash panel insert
       • Adaption following replacement of engine control unit
       • Emergency starting function with VAS 5051
     • Immobilizer self-diagnosis - immobilizer III16 pages

       • Overview

       • General information
       • Starting immobilizer self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Erasing fault memory
       • End of output
       • Reading measured value block
       • Adaption
       • Establishing PIN
       • Matching of vehicle keys
       • Procedure in the event of loss of keys
       • Adaption following replacement of dash panel insert
       • Adaption following replacement of engine control unit
       • Adaption following replacement of dash panel insert and engine control unit
       • Control unit release
     • Cruise control system (CCS) self-diagnosis5 pages

       • Overview

       • General information
       • Checking cruise control system (CCS) - petrol engines with electronic throttle
       • Checking cruise control system (CCS) - diesel engines
       • Activating/deactivating cruise control system
     • Acoustic Parking System (APS) self-diagnosis10 pages

       • Overview

       • General information
       • Starting parking aid system self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Erasing fault memory
       • End of output
       • Encoding control unit
       • Reading measured value block
       • Adaption
     • Automatic headlight range control self-diagnosis11 pages

       • Overview

       • General information
       • Starting automatic headlight range control self-diagnosis
       • Interrogating fault memory
       • Fault table
       • Final control diagnosis
       • Basic setting
       • Erasing fault memory
       • End of output
       • Encoding control unit
       • Reading measured value block
   • Radio, Telephone and Navigation System, Self-diagnosis › Self diagnosis, V.A.G Inspection Service287 pages

     • Radio system self-diagnosis (as of MY 98)41 pages

       • Overview

       • General2 pages

         • Overview

         • Technical features of radio systems
       • Safety precautions
       • Starting radio system self-diagnosis4 pages

         • Overview

         • Additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Radio system fault table
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Encoding control unit4 pages

         • Overview

         • Encoding procedure
         • Encoding table up to MY 01:
         • Encoding table as of MY 02:
       • Reading measured value block14 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups up to MY 01
         • List of display groups as of MY 02
         • Measured value block 001 up to MY 01
         • Measured value block 001 as of MY 02
         • Measured value block 002 up to MY 01
         • Measured value block 002 as of MY 02
         • Measured value block 003
         • Measured value block 004 up to MY 01
         • Measured value block 004 as of MY 02
         • Measured value block 005 up to MY 01
         • Measured value block 005 as of MY 02
         • Measured value block 006 up to MY 01
       • Adaption8 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • External tuner adaption (digital radio)
         • Activating/deactivating GALA function
         • Activating/deactivating vehicle speed display
         • Activating/deactivating long wave reception
         • Activating/deactivating transportation mode
     • Self-diagnosis of navigation system II-D (Navigation System Plus RNS 4.1) (as of week 36/00)44 pages

       • Overview

       • General3 pages

         • Overview

         • Features
         • As of week 45/01 (version RNS 4.2)
       • Fault messages on navigation system display
       • Safety precautions
       • Starting self-diagnosis of navigation system II-D4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for navigation system II-D
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Reading measured value block10 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 003
         • Measured value block 004
         • Measured value block 005
         • Measured value block 006
         • Measured value block 007
       • Function status register2 pages

         • Overview

         • Description of operation
       • Adaption15 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • Adapting tyre circumference
         • Adapting number of ABS wheel sensor pulses
         • Tyre table for Audi A3
         • Disabling/enabling production diagnosis (function status register)
         • Adapting dash panel insert display
         • Adapting country identification
         • Adapting telematics system
         • Adapting electronic log book
         • Adapting CAN bus users
         • Fitting list
         • Front passive loudspeaker diagnosis
         • Activating/deactivating transportation mode
     • Self-diagnosis of navigation system III (as of week 29/99)38 pages

       • Overview

       • General3 pages

         • Overview

         • Features
         • Description of operation
       • Safety precautions
       • Starting self-diagnosis of navigation system III4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for navigation system III
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Reading measured value block12 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 003
         • Measured value block 004
         • Measured value block 005
         • Measured value block 006
         • Measured value block 007
         • Measured value block 008
         • Measured value block 010
       • Function status register2 pages

         • Overview

         • Description of operation
       • Adaption8 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • Adapting tyre circumference
         • Adapting number of pulses per wheel revolution (GALA)
         • Disabling/enabling production diagnosis (function status register)
         • Adapting loudspeaker connection
         • Adapting country identification
     • Self-diagnosis of navigation system Nav IV (BNS 4.0) as of week 04/0141 pages

       • Overview

       • General3 pages

         • Overview

         • Features
         • Description of operation
       • Safety precautions
       • Starting self-diagnosis of navigation system BNS 4.0 (Nav IV)4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for navigation system IV
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Reading measured value block12 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 003
         • Measured value block 004
         • Measured value block 005
         • Measured value block 006
         • Measured value block 007
         • Measured value block 008
         • Measured value block 010
       • Function status register2 pages

         • Overview

         • Description of operation
       • Adaption11 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • Adapting tyre circumference
         • Adapting number of pulses per wheel revolution (GALA)
         • Disabling/enabling production diagnosis (function status register)
         • Adapting loudspeaker connection
         • Adapting country identification
         • Adapting dynamic navigation
         • Adapting electronic log book
         • Activating/deactivating GALA function
     • Multi-function steering wheel self-diagnosis24 pages

       • Overview

       • General2 pages

         • Overview

         • Technical features of multi-function steering wheel
       • Safety precautions
       • Starting self-diagnosis of multi-function steering wheel4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for multi-function steering wheel
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Encoding control unit4 pages

         • Overview

         • Encoding procedure
         • Encoding table for control units with index "C” "H” and "J”
         • Encoding table for control units with index "G”
       • Reading measured value block5 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
     • Telematics self-diagnosis39 pages

       • Overview

       • General
       • Notes on system release
       • Safety precautions
       • Starting self-diagnosis of telematics system4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for telematics system
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Encoding control unit3 pages

         • Overview

         • Encoding procedure
         • Encoding table
       • Reading measured value block12 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 003
         • Measured value block 004
         • Measured value block 005
         • Measured value block 006
         • Measured value block 080
         • Measured value block 081
         • Measured value block 125
       • Adaption9 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • Adapting tyre circumference
         • Adapting number of pulses per wheel revolution (GALA)
         • Activating/deactivating service mode
         • Aerial test selection
         • Aerial selection
         • System selection
     • Telephone self-diagnosis31 pages

       • Overview

       • General2 pages

         • Overview

         • Technical features of permanently installed telephone
       • Safety precautions
       • Starting telephone self-diagnosis4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Telephone fault table
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Encoding control unit3 pages

         • Overview

         • Encoding procedure
         • Encoding table
       • Reading measured value block9 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 005
         • Measured value block 080
         • Measured value block 081
         • Measured value block 125
       • Adaption4 pages

         • Overview

         • Adaption table
         • Implementing function "10 - Adaption”
         • Aerial test selection
     • Self-diagnosis of TV tuner26 pages

       • Overview

       • General2 pages

         • Overview

         • Technical features of TV tuner
       • Safety precautions
       • Starting self-diagnosis of TV tuner4 pages

         • Overview

         • Necessary additional sources of information and test requirements
         • Procedure
         • Self-diagnosis functions
       • Interrogating control unit version
       • Interrogating fault memory
       • Fault table for TV tuner
       • Final control diagnosis2 pages

         • Overview

         • Final control diagnosis procedure
       • Erasing fault memory
       • End of output
       • Encoding control unit3 pages

         • Overview

         • Encoding procedure
         • Encoding table
       • Reading measured value block8 pages

         • Overview

         • "Reading measured value block” procedure
         • List of display groups
         • Measured value block 001
         • Measured value block 002
         • Measured value block 003
         • Measured value block 004
         • Measured value block 005
     • Connecting up vehicle diagnostic, testing and information system VAS 5051 or fault reader V.A.G 1551 and selecting functions3 pages

       • Overview

       • Test conditions
       • Procedure
   • Radio, telephone and navigation system › Infotainment198 pages

     • Radio system50 pages

       • Overview

       • General4 pages

         • Overview

         • Notes on radio service installation
         • Notes on CD service installation
         • Aerial system with diversity function
       • Block diagram of radio systems (up to MY 97)7 pages

         • Overview

         • "beta” radio system
         • Contact assignment of multi-pin connectors II, III
         • "gamma” radio system
         • Contact assignment of multi-pin connectors I, II, III
         • "delta” radio system
         • Contact assignment of multi-pin connectors I, II, III
         • "delta” radio system with BOSE sound system
         • Contact assignment of multi-pin connectors I, II, III
       • Block diagram of radio systems (as of MY 98)7 pages

         • Overview

         • "chorus” radio system
         • Contact assignment of multi-pin connectors I, II, III, IV
         • "concert” radio system
         • Contact assignment of multi-pin connectors I, II, III, IV
         • "concert” radio system with BOSE sound system
         • Contact assignment of multi-pin connectors I, II, III, IV
         • "symphony” radio system
         • Contact assignment of multi-pin connectors I, II, III, IV
         • "symphony” radio system with BOSE sound system
         • Contact assignment of multi-pin connectors I, II, III, IV
       • Pre-fitted components for radio installation4 pages

         • Overview

         • Block diagram
         • Contact assignment of multi-pin connectors II and III
         • Connecting radio with pre-fitted components for radio installation
       • Connectors on back of "chorus” radio
       • Connectors on back of "concert” radio
       • Connectors on back of "symphony” radio
       • Connector at CD changer
       • Connector at BOSE amplifier
       • Overall layout of radio systems
       • Overall layout of "symphony” and (as of MY 02) "concert” radio system
       • Removing and installing "chorus” and "concert” radios
       • Removing and installing "symphony” radio
       • Removing and installing loudspeakers4 pages

         • Overview

         • Removing and installing bass loudspeakers in doors
         • Removing and installing treble/mid-range loudspeakers in doors
         • Removing and installing loudspeaker in rear side trim
       • Removing and installing CD changer (up to MY 98)3 pages

         • Overview

         • Exploded view
         • Removing and installing
       • Removing and installing CD changer (as of MY 99)2 pages

         • Overview

         • Checking wiring between radio and CD changer
       • Removing and installing BOSE amplifier (up to MY 98)
       • Removing and installing BOSE amplifier (as of MY 99)
       • Removing and installing bass loudspeaker
       • Removing and installing tailgate aerial amplifiers
       • Removing and installing aerial selection control unit J515 (up to MY 00)
       • Removing and installing aerial selection control unit J515 (as of MY 01)
       • Removing and installing roof aerial3 pages

         • Overview

         • Exploded view
         • Removing and installing
     • Servicing telephone system20 pages

       • Overview

       • General
       • General description
       • Permanently installed telephone
       • Mobile phone and, as of MY 02, pre-fitted components for mobile phone installation
       • Pre-fitted components for telephone installation (up to MY 01)
       • Pre-fitted components for mobile phone installation (up to MY 01)
       • Connector at mobile telephone operating electronics control unit J412
       • Connector at telephone transmitter and receiver unit R36 (Nokia)
       • Connectors at mobile telephone aerial amplifier R86
       • Removing and installing handset with holder
       • Removing and installing handset cradle with holder
       • Removing and installing telephone transmitter and receiver unit R36 (up to MY 99)
       • Removing and installing telephone transmitter and receiver unit R36 (Nokia) (up to MY 00)
       • Removing and installing mobile telephone aerial amplifier R86
       • Removing and installing mobile telephone operating electronics control unit J412
       • Removing and installing hands-free microphone (up to MY 99)
       • Removing and installing hands-free microphone (as of MY 00)
       • Removing and installing hands-free loudspeaker (up to MY 98)
       • Removing and installing hands-free loudspeaker (as of MY 99)
     • Navigation system I (up to week 28/99)55 pages

       • Overview

       • General
       • General description3 pages

         • Overview

         • Equipment features
         • Description of operation
       • Block diagram
       • Connectors at navigation system with CD drive control unit J401
       • Connectors at operating electronics control unit, navigation J402
       • Exploded view of navigation system I
       • Service information on navigation system I
       • Information required from customer in the event of complaints3 pages

         • Overview

         • Important display messages
         • Possible sources of interference affecting magnetic field sender (compass)
       • Action to be taken following service work or tyre change12 pages

         • Overview

         • Following replacement of navigation system with CD drive control unit J401
         • Following replacement of magnetic field sender (compass) G197
         • Following replacement of operating electronics control unit, navigation J402
         • Following replacement of navigation system operating unit E199
         • Following replacement of navigation aerial R50
         • Following replacement of rear window
         • Following replacement of ABS control unit
         • Following replacement of dash panel insert
         • Following disconnection of battery
         • Following use of navigation CD with new/modified software version
         • Following tyre change
       • Calling up technical service software
       • Automatic checking of current parameters
       • Wheel calibration after changing tyre or replacing control unit6 pages

         • Overview

         • New tyres
         • Tyre table
         • Used tyres or special tyres
         • Track width table
         • Termination of wheel calibration
       • Wiring test procedure2 pages

         • Overview

         • Fault detection in wiring test
       • Test drive (basic calibration) procedure4 pages

         • Overview

         • Determination of location
         • Calibration of voltage tap
         • Compass calibration
       • System test procedure8 pages

         • Overview

         • Call-up of current parameters
         • Table of typical tyre circumferences
         • Wheel pulse test
         • Compass test
         • Voltage tap test
         • Internal control unit test
         • End of system test
       • Starting navigation
       • Entering location
       • Interrogating software version
       • Notes on replacing navigation system components
       • Removing and installing navigation system with CD drive control unit J401
       • Removing and installing navigation system operating unit E199
       • Removing and installing operating electronics control unit, navigation J402
       • Removing and installing magnetic field sender (compass) G197
     • Navigation system II-D (navigation system Plus RNS 4.1) (as of week 36/00)19 pages

       • Overview

       • General
       • General description
       • Fault message display
       • Block diagram of navigation system II-D
       • Block diagram of navigation system II-D with BOSE sound system
       • Connectors at operating electronics control unit, navigation J4022 pages

         • Overview

         • Contact assignment of multi-pin connectors
       • Connectors at navigation interface R94
       • Connectors at aerial selection control unit J515
       • Connectors at TV tuner J415 (up to MY 01)2 pages

         • Overview

         • Contact assignment of multi-pin connectors
       • Connectors at TV tuner J415 (as of MY 01)2 pages

         • Overview

         • Contact assignment of multi-pin connector
       • Overall layout of navigation system II-D
       • Removing and installing operating electronics control unit, navigation J402
       • Removing and installing TV tuner J415
       • Removing and installing TV aerial amplifiers
       • Removing and installing navigation interface R94
     • Navigation system III (as of week 29/99)9 pages

       • Overview

       • General
       • General description
       • Block diagram of navigation system III
       • Connectors at navigation system with CD drive control unit J4012 pages

         • Overview

         • Contact assignment of multi-pin connectors
       • Overall layout of navigation system III
       • Removing and installing function selection switch II
       • Removing and installing navigation system with CD drive control unit
     • Navigation system IV (BNS 4.0) as of week 04/016 pages

       • Overview

       • General
       • General description
       • Design of navigation system BNS 4.0
       • Connectors and contact assignments
       • Overall layout of BNS 4.0
     • Multi-function steering wheel17 pages

       • Overview

       • General
       • General description3 pages

         • Overview

         • System features
         • Description of operation
       • Block diagram of multi-function steering wheel (up to MY 01)
       • Block diagram of multi-function steering wheel (as of MY 02)
       • Assignment of buttons on multi-function steering wheels6 pages

         • Overview

         • Radio button assignment
         • Cassette button assignment
         • CD button assignment
         • TV button assignment
         • Telephone button assignment
       • Removing and installing multi-function buttons
       • Removing and installing tiptronic buttons
       • Removing and installing multi-function steering wheel control unit J453 (up to MY 01)
       • Removing and installing multi-function steering wheel control unit J453 (as of MY 02)
     • Telematics system22 pages

       • Overview

       • General
       • General description
       • Block diagram of telematics system
       • Connectors at telephone/telematics control unit J5262 pages

         • Overview

         • Contact assignment of multi-pin connectors
       • Overall layout of telematics system
       • Removing and installing telephone/telematics control unit J5262 pages

         • Overview

         • Notes on control unit replacement
       • Activating/deactivating service mode3 pages

         • Overview

         • Activating service mode
         • Deactivating service mode
       • Telematics SIM card replacement
       • Removing and installing emergency battery for telematics
       • Initialising telephone/telematics control unit J5263 pages

         • Overview

         • Requirements
         • Initialisation procedure
       • Removing and installing aerial filter R87 for GPS aerial
       • Removing and installing emergency call button E276 and breakdown help button E275
       • Removing and installing hands-free microphone
       • Removing and installing additional loudspeaker for telematics R91 (emergency loudspeaker)
       • Removing and installing additional aerial for telematics R90 (emergency aerial)
   • Fitting instructions: radio communication systems › Infotainment › Service installation of radio communication systems30 pages

     • Overview

     • General notes
     • Transmission power and possible fitting locations
     • Voltage supply
     • Aerial and aerial wire
     • Other auxiliary equipment
     • Overview of batteryA / transmitter and receiver unit / fuse / wiring harness
     • Transmission power levels and aerial fitting locations for A2 (from model year 2001 onwards)
     • Transmission power levels and aerial fitting locations for A3 (from model year 1997 up to model year 2003)
     • Transmission power levels and aerial fitting locations for A3 (from model year 2004 onwards)
     • Transmission power levels and aerial fitting locations for A3 Cabriolet (from model year 2008 onwards)
     • Transmission power levels and aerial fitting locations for A4 (from model year 1995 up to model year 2000)
     • Transmission power levels and aerial fitting locations for A4 (from model year 2001 up to model year 2007)
     • Transmission power levels and aerial fitting locations for A4 (from model year 2008 onwards)
     • Transmission power levels and aerial fitting locations for A4 Cabriolet (from model year 2003 onwards)
     • Transmission power levels and aerial fitting locations for A5 Cabriolet (from model year 2009 onwards)
     • Transmission power levels and aerial fitting locations for A5 Coupé (from model year 2008 onwards)
     • Transmission power levels and aerial fitting locations for A6 (from model year 1998 up to model year 2004)
     • Transmission power levels and aerial fitting locations for A6 (from model year 2005 onwards)
     • Transmission power levels and aerial fitting locations for A8 (from model year 1994 up to model year 2002)
     • Transmission power levels and aerial fitting locations for A8 (from model year 2003 onwards)
     • Transmission power levels and aerial fitting locations for A8 (from model year 2010 onwards)
     • Transmission power levels and aerial fitting locations for Q5 (from model year 2008 onwards)
     • Transmission power levels and aerial fitting locations for Q7 (from model year 2007 onwards)
     • Transmission power levels and aerial fitting locations for R8 (from model year 2007 onwards)
     • Transmission power levels and aerial fitting locations for R8 Spyder (from model year 2010 onwards)
     • Transmission power levels and aerial fitting locations for TT (from model year 1999 up to model year 2006)
     • Transmission power levels and aerial fitting locations for TT (from model year 2007 onwards)
     • Transmission power levels and aerial fitting locations for A1 (from model year 2010 onwards)
     • Transmission power levels and aerial fitting locations for A7 Sportback (from model year 2011 onwards)
6. 06Heating, ventilation, air conditioning systemHeating, ventilation, air conditioning system: Sections