A4 Mk2: Vehicle electrics
Also for this vehicle: A4 Cabriolet L4-1.8L Turbo (AMB) (2005), A4 Cabriolet L4-2.0L Turbo (BWT) (2007), A4 Cabriolet Mk2, A4 Cabriolet V6-3.0L (AVK) (2003), A4 Mk1, A4 Mk3, A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009), A4 Quattro Cabriolet V6-3.0L (BGN) (2005), A4 Quattro Cabriolet V6-3.2L (BKH) (2007), A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998), A4 Quattro Sedan L4-1.8L Turbo (ATW) (2000), A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001), A4 Quattro Sedan L4-2.0L Turbo (BPG) (2005), A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009), A4 Quattro Sedan V6-2.8L (ACK) (1997), A4 Quattro Sedan V6-3.0L (AVK) (2002), A4 Quattro Sedan V6-3.2L (BKH) (2005), A4 Quattro Wagon (8K5) L4-2.0L Turbo (CAEB) (2011), A4 Quattro Wagon L4-1.8L Turbo (AEB) (1999), A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000), A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001), A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005), A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009), A4 Quattro Wagon V6-2.8L (AHA) (1998), A4 Quattro Wagon V6-3.0L (AVK) (2002), A4 Quattro Wagon V6-3.2L (BKH) (2005), A4 Sedan L4-1.8L Turbo (AEB) (1997), A4 Sedan L4-1.8L Turbo (ATW) (2000), A4 Sedan L4-1.8L Turbo (AWM) (2001), A4 Sedan L4-2.0L Turbo (BPG) (2005), A4 Sedan V6-2.8L (AFC) (1996), A4 Sedan V6-2.8L (AHA) (1998), A4 Sedan V6-3.0L (AVK) (2002), A4 Sedan V6-3.2L (BKH) (2007), A4 V6-3.0L (AVK) (2004).
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Electrical system386 pages
Starter-current supply-CC42 pages
- Contact corrosion
Battery12 pages
- Battery - general notes
- Maintenance-free batteries
- Disconnecting and connecting battery in engine compartment
- Disconnecting and connecting battery in luggage compartment
- Removing and installing battery in engine compartment
- Removing and installing battery in luggage compartment
- Checking battery
- Battery charging
- Preparations before charging battery
- Preparations for back-up power supply of battery
- Removing and installing battery isolation igniter N253 - Audi RS4
Removing and installing alternator13 pages
- Vehicles with 1.6 ltr., 1.8 ltr. turbo, 2.0 ltr. MPI and 2.0 ltr. FSI engine
- Vehicles with 2.0 ltr. TFSI engine
- Vehicles with 2.4 ltr. engine
- Vehicles with 3.0 ltr. MPI engine
- Vehicles with 3.2 ltr. FSI engine
- Vehicles with 4.2 ltr. MPI engine - Audi S4
- Vehicles with 4.2 ltr. FSI engine - Audi RS4
- Vehicles with 1.9 ltr. TDI engine to 05.2003
- Vehicles with 1.9 ltr. or 2.0 ltr. 2 V TDI engine from 06.2003
- Vehicles with 2.0 ltr. 4V TDI engine
- Vehicles with 2.5 ltr. TDI engine
- Vehicles with 2.7 ltr. or 3.0 ltr. TDI engine
Removing and installing starter12 pages
- Vehicles with 1.6 ltr., 1.8 ltr. turbo, 2.0 ltr. MPI and 2.0 ltr. FSI engine
- Vehicles with 2.0 ltr. TFSI engine
- Vehicles with 2.4 ltr. or 3.0 ltr. MPI engine
- Vehicles with 3.2 ltr. FSI engine
- Vehicles with 4.2 ltr. MPI engine - Audi S4
- Vehicles with 4.2 ltr. FSI engine - Audi RS4
- Vehicles with 1.9 ltr. TDI engine
- Vehicles with 2.0 ltr. 2V TDI engine
- Vehicles with 2.0 ltr. 4V TDI engine
- Vehicles with 2.5 ltr. TDI engine
- Vehicles with 2.7 ltr. or 3.0 ltr. TDI engine
- Cruise control system (CCS)
Instruments, GCI › Instrument cluster27 pages
- Fault message "dEF” in trip recorder display
- Removing and installing instrument cluster
- Multi-pin connectors on instrument cluster
- Pin assignment at multi-pin connectors on instrument cluster
- Pin assignment at fuel gauge sender G - vehicles with front-wheel drive
- Pin assignment at fuel gauge senders - vehicles with four-wheel drive
Pin assignment at coolant temperature display sender G210 pages
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 1.6 ltr. TDI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 1.8 ltr. turbo engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 2.0 ltr. MPI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 2.0 ltr. FSI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 2.4 ltr. MPI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 3.0 ltr. MPI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 4.2 ltr. MPI engine to 05.2005 - Audi
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 1.9 ltr. TDI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 2.5 ltr. TDI engine
Pin assignment at coolant temperature sender G627 pages
- Unplugging electrical connector at coolant temperature sender G62 - vehicles with 2.0 ltr. TFSI engine
- Unplugging electrical connector at coolant temperature sender G62 - vehicles with 3.2 ltr. FSI engine
- Unplugging electrical connector at coolant temperature display sender G2 - vehicles with 4.2 ltr. MPI engine from 06.2005 - Au
- Unplugging electrical connector at coolant temperature sender G62 - vehicles with 4.2 ltr. FSI engine - Audi RS4
- Unplugging electrical connector at coolant temperature sender G62 - vehicles with 2.0 ltr. TDI engine
- Unplugging electrical connector at coolant temperature sender G62 - vehicles with 2.7 ltr. or 3.0 ltr. TDI engine
- Removing and installing radio controlled clock receiver J489
- Removing and installing garage door operation control unit J530 - vehicles up to 10.2004
- Removing and installing garage door operation control unit J530 - vehicles as of 11.2004
Windscreen wipe/wash system32 pages
Windscreen wiper system8 pages
Rear window wiper and washer system - Avant10 pages
Headlight washer system - vehicles up to 10.20044 pages
Headlight washer system - vehicles from 11.20044 pages
- Washer fluid hoses
Lights, lamps, switches outside202 pages
Halogen headlights - vehicles up to 10.200418 pages
- Halogen headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
Preparations before working on headlights7 pages
- Removing air cleaner housing - vehicles with 1.6 ltr. and 2.0 ltr. MPI engine
- Removing air cleaner housing - vehicles with 1.8 ltr. turbo engine
- Removing air cleaner housing - vehicles with 2.0 ltr. FSI engine
- Removing air cleaner housing - vehicles with 6-cyl. petrol engine
- Removing air cleaner housing - vehicles with 4-cyl. TDI engine
- Removing air cleaner housing - vehicles with 6-cyl. TDI engine
- Renewing bulb for dipped beam headlights
- Renewing bulb for main beam headlights
- Renewing bulb for side lights
- Renewing bulb for turn signal
- Removing and installing headlight range control motor
- Installing repair kit for headlight housing
- Converting headlights for LHD or RHD traffic
Halogen headlights - USA vehicles up to 10.200411 pages
Halogen headlights - all vehicles from 11.200412 pages
- Halogen headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
- Renewing bulb for dipped beam headlights
- Renewing bulb for main beam headlights
- Renewing bulb for side lights
- Renewing bulb for turn signal
- Installing repair kit for headlight range control motor
- Installing repair kit for headlight housing
- Adjusting headlights from right-hand traffic to left-hand traffic
- Adjusting headlights from left-hand traffic to right-hand traffic
Gas discharge headlights - vehicles up to 10.200423 pages
- Safety precautions when handling gas discharge lamps
- Gas discharge headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
Preparations before working on headlights8 pages
- Removing air cleaner housing - vehicles with 1.6 ltr. and 2.0 ltr. MPI engine
- Removing air cleaner housing - vehicles with 1.8 ltr. turbo engine
- Removing air cleaner housing - vehicles with 2.0 ltr. FSI engine
- Removing air cleaner housing - vehicles with 6-cyl. petrol engine
- Removing air cleaner housing - vehicles with 8-cyl. petrol engine
- Removing air cleaner housing - vehicles with 4-cyl. TDI engine
- Removing air cleaner housing - vehicles with 6-cyl. TDI engine
- Renewing gas discharge lamp - vehicles up to approx. 09.2001
- Renewing gas discharge lamp - vehicles from approx. 09.2001
- Renewing bulb for main beam headlights
- Renewing bulb for side lights
- Renewing bulb for turn signal
- Removing and installing headlight range control motor
- Removing and installing control unit for gas discharge lamp - vehicles up to approx. 09.2001
- Removing and installing control unit for gas discharge lamp - vehicles from approx. 09.2001
- Installing repair kit for headlight housing
- Converting headlights for driving on the left or right side of the road
Gas discharge headlights - USA vehicles up to 10.200417 pages
- Safety precautions when handling gas discharge lamps
- Gas discharge headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
- Renewing gas discharge lamp - vehicles up to approx. 09.2001
- Renewing gas discharge lamp - vehicles from approx. 09.2001
- Renewing bulb for main beam headlights
- Renewing turn signal/side light bulb
- Removing and installing headlight range control motor
- Removing and installing control unit for gas discharge lamp - vehicles up to approx. 09.2001
- Removing and installing control unit for gas discharge lamp - vehicles from approx. 09.2001
- Installing repair kit for headlight housing
Bi-xenon gas discharge headlights - vehicles up to 10.200415 pages
- Safety precautions when handling gas discharge lamps
- Gas discharge headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
- Renewing gas discharge lamp
- Renewing bulb for main beam headlights
- Renewing bulb for side lights
- Removing and installing solenoid for headlight screen adjustment
- Renewing bulb for turn signal
- Removing and installing headlight range control motor
- Removing and installing control unit for gas discharge lamp
- Removing and installing adapter cable for gas discharge lamp control unit
- Installing repair kit for headlight housing
- Converting headlights for driving on the left or right side of the road
Bi-xenon gas discharge headlights - USA vehicles up to 10.200413 pages
- Safety precautions when handling gas discharge lamps
- Gas discharge headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
- Renewing gas discharge lamp
- Renewing bulb for main beam headlights
- Removing and installing solenoid for headlight screen adjustment
- Renewing turn signal/side light bulb
- Removing and installing headlight range control motor
- Removing and installing control unit for gas discharge lamp
- Removing and installing adapter cable for gas discharge lamp control unit
- Installing repair kit for headlight housing
Gas discharge headlights - all vehicles from 11.200427 pages
- Safety precautions when handling gas discharge lamps
- Gas discharge headlights - exploded view
- Removing and installing headlights
- Adjusting headlights
Preparations before working on headlights12 pages
- Removing washer fluid reservoir (top section) and detaching power steering reservoir
- Removing air cleaner housing - vehicles with 1.6 ltr. and 2.0 ltr. MPI engine
- Removing air cleaner housing - vehicles with 1.8 ltr. turbo engine
- Removing air cleaner housing - vehicles with 2.0 ltr. FSI engine
- Removing air cleaner housing - vehicles with 2.0 ltr. TFSI engine
- Removing air cleaner housing - vehicles with 2.4 ltr or 3.0 ltr. MPI engine
- Removing air cleaner housing - vehicles with 3.2 ltr. FSI engine
- Removing air cleaner housing - vehicles with 4.2 ltr. MPI engine - Audi S4
- Removing air cleaner housing - vehicles with 4.2 ltr. FSI engine - Audi RS4
- Removing air cleaner housing - vehicles with 4-cyl. TDI engine
- Removing air cleaner housing - vehicles with 6-cyl. TDI engine
- Renewing gas discharge lamp
- Renewing daylight driving light bulb
- Renewing bulb for side lights
- Removing and installing main and dip beam switch-over solenoid
- Removing and installing swivel module position sensor and dynamic cornering light control motor
- Renewing bulb for turn signal
- Removing and installing control unit for gas discharge lamp
- Installing repair kit for headlight housing
- Adjusting headlights for driving on the left or right side of the road (rest-of-the-world vehicles with adjustment lever)
- Adjusting headlights for driving on the left or right side of the road (rest-of-the-world vehicles without adjustment lever)
Fog lights - vehicles up to 10.20044 pages
Fog lights - vehicles from 11.20048 pages
Rear lights - vehicles from 11.200411 pages
- Outer rear light (Saloon) - exploded view
- Removing and installing outer rear light and bulb carrier (Saloon)
- Inner rear light (Saloon) - exploded view
- Removing and installing inner rear light (Saloon)
- Removing and installing bulb for tail light and rear fog light (Saloon)
- Outer rear light (Avant) - exploded view
- Removing and installing outer rear light and bulb carrier (Avant)
- Inner rear light (Avant) - exploded view
- Removing and installing inner rear light (Avant)
- Removing and installing bulb for tail light and rear fog light (Avant)
High-level brake light - vehicles up to 10.20043 pages
High-level brake light - vehicles from 11.20043 pages
Steering column switch module11 pages
- Steering column switch module - exploded view
- Removing and installing steering column switch module
- Removing and installing return ring with slip ring
- Removing and installing steering angle sender G85
- Removing and installing steering column electronics control unit J527
- Pin assignment at steering column electronics control unit J527 (front)
- Pin assignment at steering column electronics control unit J527 (reverse side)
- Removing and installing turn signal switch E2
- Removing and installing switch for cruise control system E45
- Removing and installing intermittent wiper switch E22
Lock cylinder and ignition/starter switch4 pages
Parking aid10 pages
- Parking aid - overview
- Removing and installing parking aid control unit J446
- Removing and installing front parking aid warning buzzer H22 (8-channel parking aid)
- Removing and installing rear parking aid warning buzzer H15 (Saloon)
- Removing and installing rear parking aid warning buzzer H15 (Avant)
- Removing and installing senders for parking aid (front) - vehicles up to 10.2004
- Removing and installing senders for parking aid (front) - vehicles from 11.2004
- Removing and installing senders for parking aid (rear) - vehicles up to 05.2004
- Removing and installing senders for parking aid (rear) - vehicles from 06.2004
Automatic headlight range control3 pages
Lights, lamps, switches inside, anti-theft system61 pages
Switches27 pages
- Removing and installing light switch E1
- Removing and installing headlight range control adjuster and "coming home” switch
- Removing and installing hazard warning lights button E229
- Removing and installing switches in centre console
- Removing and installing front seat heating switches
- Removing and installing heated rear seat switch with regulator E128 / E129
- Removing and installing function selection switch 2 E272
- Removing and installing starter button E378 - Audi RS4
- Removing and installing glove compartment light switch E26
- Removing and installing mirror adjustment switch E43
- Removing and installing window regulator switch E40 / E41 (driver's side)
- Removing and installing window regulator switches E40 / E41 / E53 / E55
- Removing and installing front right window regulator switch E41
- Removing and installing rear left/rear right window regulator switch E52 / E54
- Removing and installing sunroof switch E8
- Removing and installing door contact switch
- Removing and installing interior locking switch E150 / E198 (central locking switch)
- Removing and installing rear interior locking switch E273 / E273 (central locking switch)
- Removing and installing interior monitor deactivation switch E183 and rear lid release switch E165
- Removing and installing switches for seat memory with seat memory ON/OFF button
- Removing and installing garage door operating unit E284
- Removing and installing rear lid contact switch (saloon up to 10.2004)
- Removing and installing rear lid contact switch (Avant up to 10.2004)
- Removing and installing rear lid contact switch - vehicles as of 11.2004
- Removing and installing 12 V socket in luggage compartment - vehicles up to 10.2004
- Removing and installing 12 V socket in luggage compartment - vehicles as of 11.2004
- Immobilizer
Interior lights22 pages
- Removing and installing light for make-up mirror
- Removing and installing interior light/reading light (front)
- Removing and installing LED for background lighting
- Renewing bulb for front interior light
- Renewing bulb for reading light (front)
- Removing and installing front passenger side airbag deactivated warning lamp K145 - vehicles up to 10.2004
- Removing and installing front passenger side airbag deactivated warning lamp K145 - vehicles from 11.2004
- Removing and installing interior light/reading light (rear)
- Renewing bulb for interior light/reading light (rear)
- Removing and installing glove box light
- Removing and installing ashtray light (front)
- Removing and installing rear ashtray light
- Removing and installing bulb for door opener light
- Removing and installing door safety light and entry light
- Removing and installing footwell light (front)
- Removing and installing ashtray light (rear)
- Removing and installing footwell light (rear)
- Removing and installing luggage compartment lights (Saloon)
- Removing and installing luggage compartment light (Avant)
- Removing and installing bulb for luggage compartment light (Avant)
- Removing and installing rear lid light (Avant)
- Heated steering wheel
Wiring22 pages
Relay carriers, fuse carriers17 pages
- Removing and installing fuse carrier
- Removing and installing onboard supply control unit J519
- Removing and installing 9-position relay carrier
- Removing and installing 3-position relay carrier
- Removing and installing 4-position relay carrier
- Removing and installing connector point (left-side)
- Removing and installing convenience system central control unit J393
- Removing and installing connector point (right-side)
- Removing and installing main fuse box at rear left of luggage compartment - Audi RS4
- Removing and installing main fuse at rear left of luggage compartment - Audi RS4
- Removing and installing plenum chamber electronics box
- Removing and installing fan for plenum chamber electronics box
- Removing and installing 4-position relay carrier in plenum chamber electronics box
- Removing and installing connector point in plenum chamber electronics box
- Removing and installing main fuse carrier - vehicles with battery in engine compartment
- Removing and installing positive terminal tap in plenum chamber - Audi RS4
- Repairing wiring harnesses and electrical connectors
- Repairing connector housings and electrical connectors
- Releasing and dismantling connector housings
- Repairing aerial wires
- Vehicle diagnostic, testing and information systems
Communication › Infotainment258 pages
Radio systems55 pages
Radio systems - overview8 pages
- Radio "chorus” (up to week 21/04)
- Radio "chorus” BOSE (up to week 21/04)
- Radio "concert” / "symphony” and, from week 22/04, "chorus” (Saloon)
- Radio "concert” / "symphony” and, from week 22/04, "chorus” (Avant)
- Radio "concert” / "symphony” and, from week 22/04, "chorus” BOSE (Saloon)
- Radio "concert” / "symphony” and, from week 22/04, "chorus” BOSE (Avant)
- Pre-fitted components for radio installation
Connectors and pin assignment10 pages
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
- Removing and installing "chorus” and "concert” radios
- Removing and installing "symphony” radio
- Activating/deactivating transport mode of "symphony II+” radio unit
Removing and installing CD changer R412 pages
- Removing and installing iPod holder R192
Removing and installing loudspeakers in doors5 pages
- Removing and installing internal loudspeaker R70
- Removing and installing bass loudspeaker R100 (Saloon)
- Removing and installing bass loudspeaker R100 (Avant)
- Removing and installing amplifier R12 (Saloon)
- Removing and installing amplifier R12 (Avant)
- Removing and installing amplifier R12 BOSE (Saloon)
- Removing and installing amplifier R12 BOSE (Avant)
- Function test for internal microphone R74
- Removing and installing internal microphone R74
- Removing and installing aerial amplifier R24 / aerial selection control unit J515 (Saloon)
Removing and installing aerial module, left R108 (Avant)3 pages
Radio systems SDARS (USA)32 pages
- Layout of communication system with SDARS
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
Removing and installing satellite radio R146 , enabling the radio system6 pages
- Removing and installing radio, telephone and navigation system aerial R52 (saloon)
- Removing and installing radio, telephone and navigation system aerial R52 (Avant)
Telephone system26 pages
- General notes
Connectors and pin assignment7 pages
- Mobile telephone operating electronics control unit J412 (phone pre-installation) up to MY 02
- Telephone transmitter and receiver unit R36 (mobile phone pre-installation) from MY 03
- Telephone transmitter and receiver unit R36 (fixed installation telephone)
- Aerial amplifier for mobile telephone R86
- Pre-fitted components for mobile phone installation
- Telephone bracket R126
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
Removing and installing telephone bracket R1263 pages
- Removing and installing telephone transmitter and receiver unit R36
- Removing and installing telephone transmitter and receiver unit R36 (fixed installation telephone)
- Removing and installing aerial amplifier for mobile telephone R86 (saloon)
- Removing and installing aerial amplifier for mobile telephone R86 (Avant)
- Removing and installing telephone microphone R38
- Removing and installing telephone aerial R65 (Saloon)
- Removing and installing telephone aerial R65 (Avant)
Telephone system (USA)8 pages
Navigation system IV (BNS 4.0)10 pages
- General notes
- Layout of navigation system BNS 4.0
- Connectors on navigation system with CD drive control unit J401
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
- Removing and installing navigation system with CD drive control unit J401
- Removing and installing function selection switch 2 E272
- Removing and installing navigation aerial R50 (saloon)
- Removing and installing navigation aerial R50 (Avant)
Navigation System II-D (Navigation System Plus)19 pages
- General notes
- On-screen fault messages
Connectors and pin assignment4 pages
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
- Removing and installing operating electronics control unit for navigation J402
- Removing and installing navigation interface R94 (Saloon)
- Removing and installing navigation interface R94 (Avant)
- Removing and installing navigation/TV tuner J415
- Removing and installing aerial module, right R109 (Avant)
Navigation system RNS-E13 pages
Navigation system RNS-E USA11 pages
Navigation system RNS-JP3 Japan16 pages
Navigation system RNS-JP4 Japan11 pages
Navigation system RNS-Low11 pages
Telematics system21 pages
- General notes
- Connectors on telephone/telematics control unit J526
- Overview of fitting locations (Saloon)
- Overview of fitting locations (Avant)
Removing and installing telephone and telematics control unit J5262 pages
- Renewing telematics SIM card
- Initialising telephone/telematics control unit J526
- Removing and installing emergency battery for telematics A16
- Removing and installing emergency call button E276 and breakdown help button E275
- Removing and installing additional loudspeaker for telematics R91
- Removing and installing additional aerial for telematics R90
- Removing and installing aerial filter (GPS) R110 (Avant)
- Removing and installing connector for fax/laptop
Multi-function steering wheel9 pages
- General notes
- Multi-function steering wheel - overview
Removing and installing multi-function buttons3 pages
Removing and installing tiptronic buttons3 pages
Steering column electronics control unit J5275 pages
- General notes
Pin assignment on steering column electronics control unit J5273 pages
Fitting instructions: radio communication systems › Infotainment › Service installation of radio communication systems30 pages
- 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)
Electrical system; General information107 pages
Starter-current supply-CC53 pages
Battery - general notes3 pages
Non maintenance-free batteries (without "magic eye")7 pages
Maintenance-free batteries10 pages
- Battery with "magic eye"
- Checking battery with "magic eye"
- Valve-regulated lead acid (VRLA) or absorbent glass mat (AGM) battery without "magic eye"
- Checking valve-regulated lead acid or AGM battery
- Central gas venting system
- Battery terminal screw connection
- Visual inspection of battery
- Checking colour indicator (electrolyte level in battery) - batteries with "magic eye"
- Checking electrolyte level in battery
Checking battery - vehicles without battery monitor control unitJ367 or energy management control unitJ6445 pages
- Checking battery using battery tester with printerVAS 6161
- Checking battery using battery tester with printerVAS 5097A
- Measuring no-load voltage - vehicles without battery monitor control unitJ367 or energy management control unitJ644
- Checking battery by measuring current draw - vehicles without battery monitor control unitJ367 or energy management control unit
Checking battery - vehicles with battery monitor control unitJ367 or energy management control unitJ644 and data bus diagnostic4 pages
- Checking battery using vehicle diagnostic tester
- Checking battery by measuring current draw - vehicles with battery monitor control unitJ367 or energy management control unitJ64
- Measuring no-load voltage - vehicles with battery monitor control unit J367 or energy management control unitJ644 "transpor
- Measuring no-load voltage - vehicles with battery monitor control unit J367 or energy management control unitJ644 "transpor
Charging battery6 pages
- Charging battery with battery chargerVAS 5095A, VAS 5900, VAS 5903, VAS 5904 or VAS 5906
- Totally discharged battery
- Rapid-charging battery - vehicles without battery monitor control unitJ367 or energy management control unitJ644
- Back-up power supply of battery via battery chargerVAS 5095A, VAS 5900, VAS 5903, VAS 5904 or VAS 5906
- Maintaining battery charge with solar panel VAS 6102 A
Checking and servicing alternator17 pages
- Checking alternator
- Bosch alternator up to 2000 - exploded view
- Bosch alternator from 2001 onwards - exploded view
- Removing and installing voltage regulator - Bosch alternator from 2001 onwards
- Bosch alternator from 2007 onwards - exploded view
- Removing and installing voltage regulator - Bosch alternator from 2007 onwards
- Checking carbon brushes - all types of Bosch alternators from 2001 onwards
- Valeo alternator up to 2000 - exploded view
- Valeo alternator from 2001 onwards - exploded view
- Removing and installing voltage regulator - Valeo alternator from 2001 onwards
- Checking carbon brushes - Valeo alternator from 2001 onwards
- Removing and installing voltage regulator - Valeo alternator from 2007 onwards
- Checking carbon brushes - Valeo alternator from 2007 onwards
- Removing and installing poly V-belt pulley without free-wheel
- Removing and installing poly V-belt pulley with free-wheel
- Checking poly V-belt pulley with free-wheel
- Cruise control system - vehicles with electronic throttle
Windscreen wipe/wash system › Washer fluid hoses4 pages
- Lights, lamps, switches outside › Safety precautions when handling gas discharge bulbs
Lights, lamps, switches inside, anti-theft system12 pages
Immobilizer for vehicles without entry and start authorisation switchE415 (mechanical ignition lock)5 pages
- Immobilizer for vehicles with entry and start authorisation switchE415 (electronic ignition lock)
- Heated steering wheel
Wiring37 pages
Repairing wiring harnesses and electrical connectors11 pages
- General information on repairs to the vehicle electrical system
- ESD (electrostatic discharge) workplace VAS 6613
- Notes on repairing wiring harnesses and electrical connectors
- Repairing wiring for pyrotechnic components
- Repairing CAN bus wiring
- Repairing FlexRay wiring
- Repairing a 0.25 mm2 wire with a single crimp connector
- Repairing a wire of 0.35 mm2 section or thicker with a single crimp connector
- Repairing an 0.25 mm2 wire by connecting in an additional wire
- Repairing a wire of 0.35 mm2 section or thicker by connecting in an additional wire
Repairing connector housings and electrical connectors5 pages
Releasing and dismantling connector housings7 pages
Cleaning contact surfaces with contact surface cleaning setVAS 64105 pages
- Repairing aerial wires
Vehicle diagnostic, testing and information systems3 pages