A3 Mk2: 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 Mk1, 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).
Steering & suspension
Body & interior
Engine
Transmission
General
Heating & A/C
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Fitting instructions: radio communication systems › Infotainment › Service installation of radio communication systems9 pages
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