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B8 (2007-2015) B7 (2004-2008) B6 (2000-2006) B6 (2000-2006, petrol) B5 (1994-2001) B5 (1994-2001, petrol)

Main equipment (since 2006 model year) (Audi A4 B7)

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  • Audi A4
  • B7 (2004-2008)
  • Electrical equipment
  • Electrical diagrams
  • Main equipment (since 2006 model year)
            0
19-1,19-2 Mass connections

19-1,19-2 Mass connections
* section 4.0 is possible;
**section 6.0 is possible;
*** see ECM diagram


19-3 Ignition switch, main fuse

19-3 Ignition switch, main fuse
* for models with heated washer fluid nozzles;
**see ECM diagram


19-4 Steering Column Control Module, CCS

19-4 Steering Column Control Module, CCS
*see ECM diagram


19-5 Turn signal switch, intermittent wiper switch, steering wheel angle sensor, horn switch,…

19-5 Turn signal switch, intermittent wiper switch, steering wheel angle sensor, horn switch, steering column control unit




19-6 On-board power supply control unit, steering column control unit, windshield wiper motor,…

19-6 On-board power supply control unit, steering column control unit, windshield wiper motor, washer fluid supply pump, rear window wiper motor
* for Station wagon models


19-7 Light switch, headlight range control

19-7 Light switch, headlight range control
*for models with automatic headlights/headlight cornering light;
**for Station wagon models;
***for models with headlight leveling adjustment;
****for models without headlight leveling;
*****for models with automatic headlight leveling


19-8 Left headlight

19-8 Left headlight
* for models without headlight leveling for models with high and low level headlights;
**for models with headlight leveling adjustment;
*** see diagram for low level headlights




19-9 Right headlight

19-9 Right headlight
*for models with headlight leveling adjustment for models with high and low level headlights;
**for models with headlight leveling adjustment;
***see diagram for low level headlights


19-10 Left reversing light

19-10 Left reversing light
* for Station wagon models


19-11 Right reversing light

19-11 Right reversing light
*for Station wagon models




19-12 Hazard warning light switch, horn (high and low frequency horns)

19-12 Hazard warning light switch, horn (high and low frequency horns)


19-13 D/W brake lights, X-contact overflow relay, headlight washer pump

19-13 D/W brake lights, X-contact overflow relay, headlight washer pump
* Protection via fuse S237, for models with headlight washers;
** for models up to 2006.;
*** for models from 2007.


19-14 Fuses, connector III audio system

19-14 Fuses, connector III audio system
* for models with chorus/concert/symphony audio system;
** for models with audio preparation;
*** for Station wagon models;
**** see low level headlight diagram;
# no longer in use, gradual modification




19-15 Lighting of the glove box and footwells

19-15 Lighting of the glove box and footwells
* for models with airbag switch;
** for models with manual transmission (not for all engines);
*** for models without the "lighting equipment" package;
**** for Station wagon models


19-16 Rear window heating, 12V connector

19-16 Rear window heating, 12V connector
* for Station wagon models;
**for models without 12V connector;
*** for models with 12V connector


19-17 Reversing light switch, connector, windshield washer nozzle heating element

19-17 Reversing light switch, connector, windshield washer nozzle heating element
* for models with heated injectors;
** for models with 5-speed manual transmission;
***for models with 6-speed manual transmission, not for all engines, see ECM diagram




19-18 Control unit in instrument panel insert, outside air temperature sensor, fuel gauge, fuel…

19-18 Control unit in instrument panel insert, outside air temperature sensor, fuel gauge, fuel gauge
* for AWD models;
**for BNS engine;
***not for all engines, see ECM diagram;
****output for ground signal;
#for models up to 2006.;
##for models from 2007.


19-19 Immobilizer key code reading coil, Low coolant level D/W, Low washer fluid level D/W

19-19 Immobilizer key code reading coil, Low coolant level D/W, Low washer fluid level D/W

*** not for all engines, see ECM diagram;
****for high level equipment


19-20 Engine oil pressure sensor, engine speed sensor

19-20 Engine oil pressure sensor, engine speed sensor
* see ECM diagram




19-21 Climate control panel illumination, radio clock

19-21 Climate control panel illumination, radio clock
*depending on equipment;
**except models with front parking sensors;
***for models without 12V connector;
****for models with 12V connector


19-22 DLC, speedometer, central armrest lighting

19-22 DLC, speedometer, central armrest lighting
*for models with central armrest


19-23 Hood contact switch, engine oil level and temperature sensor

19-23 Hood contact switch, engine oil level and temperature sensor
# for models up to 2006.;
## for models from 2007.




19-24 Brake pad wear sensor

19-24 Brake pad wear sensor
The article was checked by auto expert Timur Bazhenov
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

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Audi A4 B7: Electrical diagrams
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A4(B8, 2007-2015) 
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  • Petrol engines 1.8 l
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  • Petrol engines 3.2 l
  • Fuel system (petrol)
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  • Manual gearbox 0B1
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  • Electrical circuits
 
A4(B7, 2004-2008) 
  • General information
  • Introduction to manual
  • Troubleshooting
  • Operating instructions
  • Maintenance
  • Power unit
  • Petrol engines 2.0 (ALT)
  • Petrol engines 2.0 (TFSI)
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  • Cooling system
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  • Equipment and devices
  • Lighting and signaling
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  • Electrical diagrams
  • Electrical diagrams (since 2007)
 
A4(B6, 2000-2006) 
  • General information
  • Vehicle Description
  • User manual
  • Maintenance
  • Power unit
  • Gasoline engine
  • Diesel engine
  • Lubrication system
  • Cooling system
  • Supply system
  • Injection system
  • Exhaust system
  • Ignition and control
  • Transmission
  • Gear box
  • Clutch and drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Heating and ventilation
  • Exterior (external elements)
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  • Electrical equipment
  • Power devices
  • Lighting and appliances
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A4(B6, 2000-2006, petrol) 
  • General information
  • Introduction to the guide
  • Car care
  • Power unit
  • Engine repair
  • Lubrication system
  • Cooling system
  • Injection and control system
  • Ignition system
  • Power and exhaust system
  • Transmission
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  • Chassis
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  • General information
  • Introduction to the guide
  • Car care
  • Maintenance (gasoline)
  • Maintenance (diesel)
  • Power unit
  • Gasoline engines
  • Diesel engines
  • Engine overhaul
  • Cooling system
  • Fuel injection (gasoline)
  • Fuel system (diesel)
  • Exhaust system
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Doors, locks and windows
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A4(B5, 1994-2001, petrol) 
  • General information
  • Vehicle description
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  • Power unit
  • Engine repair
  • Turbocharging
  • Exhaust system
  • Cooling system
  • Ignition system
  • Fuel system
  • Motronic injection system
  • MPI and MPFI injection system
  • Transmission
  • Clutch
  • Gearbox and shafts
  • Chassis
  • Steering
  • Car suspension
  • Brake system
  • Wheels and tires
  • Body
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  • Body parts
  • Electrical equipment
  • Fuses and relays
  • Power devices
  • Lighting and lamps
  • Tools and devices
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