Electrical equipment and instruments of car Audi A4 B8
Instrument cluster — removal and installation
Instrument cluster Note: All indicator lamps in the instrument cluster are equipped with LEDs. If one alarm fails, the used instrument cluster must be...
Instrument cluster Note: All indicator lamps in the instrument cluster are equipped with LEDs. If one alarm fails, the used instrument cluster must be...
Cigarette lighter, socket — removal and installation
Installation diagram: cigarette lighter, 12V socket, 230V socket 1. Cigarette lighter mount "U1". 2. Cigarette lighter "U1". 3. Cigarette lighter. 4. Cigarette...
Installation diagram: cigarette lighter, 12V socket, 230V socket 1. Cigarette lighter mount "U1". 2. Cigarette lighter "U1". 3. Cigarette lighter. 4. Cigarette...
Sound signals — removal and installation
Sound signals 1. Safety beam: with a holder for sound signal devices. 2/5. Nut: 9 Nm. 3. Low-frequency sound signal "H7". 4. High-frequency sound signal "H2"....
Sound signals 1. Safety beam: with a holder for sound signal devices. 2/5. Nut: 9 Nm. 3. Low-frequency sound signal "H7". 4. High-frequency sound signal "H2"....
Data bus diagnostic interface — removal and installation
Data bus diagnostic interface 1. Electrical plug connection: diagnostic data bus interface "J533". 2. Diagnostic interface of data bus "J533". 3. Bolt: 3 Nm....
Data bus diagnostic interface 1. Electrical plug connection: diagnostic data bus interface "J533". 2. Diagnostic interface of data bus "J533". 3. Bolt: 3 Nm....
Windshield wiper and washer, headlight cleaning system
Windshield wiper and washer, headlight cleaning system 1. Headlight washer nozzle. 2. Nozzle. 3. Windscreen wiper arm. 4. Electric windshield wiper motor "V":...
Windshield wiper and washer, headlight cleaning system 1. Headlight washer nozzle. 2. Nozzle. 3. Windscreen wiper arm. 4. Electric windshield wiper motor "V":...
Washer reservoir, washer tubes, nozzle — removal and installation
Washer reservoir, washer tubes, nozzle 1/18. Bolt. 2. Sealing ring: replace if damaged. 3. Sealing bushing: replace if damaged. 4. Filler neck of the washer...
Washer reservoir, washer tubes, nozzle 1/18. Bolt. 2. Sealing ring: replace if damaged. 3. Sealing bushing: replace if damaged. 4. Filler neck of the washer...
Rear Window Wiper — Removal and Installation
Rear window wiper and washer 1. Rear wiper motor. glass "V12". 2. Nozzle. 3. Windscreen wiper arm. 4. Washer reservoir. Rear window wiper, rear window wiper...
Rear window wiper and washer 1. Rear wiper motor. glass "V12". 2. Nozzle. 3. Windscreen wiper arm. 4. Washer reservoir. Rear window wiper, rear window wiper...
Washer reservoir, washer tubes, rear window nozzle
Washer reservoir, washer tubes, nozzle 1. Washer reservoir. 2. Rear wiper motor. glass "V12". 3. Windscreen wiper arm. 4. Nozzle. 5. Rear washer pipe. glass....
Washer reservoir, washer tubes, nozzle 1. Washer reservoir. 2. Rear wiper motor. glass "V12". 3. Windscreen wiper arm. 4. Nozzle. 5. Rear washer pipe. glass....
Washer reservoir, washer hose, headlight nozzle — removal and installation
Washer reservoir, washer hose, nozzle 1. Right nozzle. 2. Right mount: for injector and headlight. 3. Washer hose: for the right nozzle; secured with a binder...
Washer reservoir, washer hose, nozzle 1. Right nozzle. 2. Right mount: for injector and headlight. 3. Washer hose: for the right nozzle; secured with a binder...
Steering column switch unit and electronic ignition switch
Steering wheel switch module. the column consists of a contact ring, a steering angle sensor "G85", and switches on the steering wheel. column (direction...
Steering wheel switch module. the column consists of a contact ring, a steering angle sensor "G85", and switches on the steering wheel. column (direction...
Parking assistant — overview of components
Parking assistant 1. Front right middle sensor "G253": in the radiator grille. 2. Front right sensor "G252": in the front bumper. 3. Parking assistant button...
Parking assistant 1. Front right middle sensor "G253": in the radiator grille. 2. Front right sensor "G252": in the front bumper. 3. Parking assistant button...
Interior Mirror Parts — Sensor Replacement
Wiring diagram for high beam assist, air humidity sensor, and lane departure warning system 1. Front cover: used housing for assistant, high beam "J844" with...
Wiring diagram for high beam assist, air humidity sensor, and lane departure warning system 1. Front cover: used housing for assistant, high beam "J844" with...
Engine Access and Start Authorization System — Component Overview
Engine access and start authorization system 1. Access and engine start switch "E415"; installation location: in the control panel, on the driver's side. 2....
Engine access and start authorization system 1. Access and engine start switch "E415"; installation location: in the control panel, on the driver's side. 2....
Ultrasonic interior security system — replacement of components
Ultrasonic interior security system Transmitter-receiver module 1 of the interior security system "G303" and used protection against unauthorized towing and...
Ultrasonic interior security system Transmitter-receiver module 1 of the interior security system "G303" and used protection against unauthorized towing and...
Lane Change Assist — Component Replacement
Lane Change Assist 1. Lane Keeping Assist indicator light in the driver's side exterior mirror. "K233". 2. Lane Keeping Assist button "E530". 3. Lane Keeping...
Lane Change Assist 1. Lane Keeping Assist indicator light in the driver's side exterior mirror. "K233". 2. Lane Keeping Assist button "E530". 3. Lane Keeping...
Towing hitch — replacement of components
Removal and installation the trailer recognition control unit "J345" When replacing a used one, select the Guided search for faults mode. or the "Replacement"...
Removal and installation the trailer recognition control unit "J345" When replacing a used one, select the Guided search for faults mode. or the "Replacement"...
Relay board, fuse box — replacement of components
Engine compartment junction box, distributor, battery fuse box 1. Switching unit mot. compartment. 2. Fuse box B "SB": relay box and fuse box in the switch....
Engine compartment junction box, distributor, battery fuse box 1. Switching unit mot. compartment. 2. Fuse box B "SB": relay box and fuse box in the switch....
Relay box, fuse box in the passenger compartment — removal and installation
Front Panel Fuse/Relay Box, A-Pillar Fuse/Relay Box 1. Used on-board network "J519". 2. Fastening for the relay and fuse box with used on-board network "J519"....
Front Panel Fuse/Relay Box, A-Pillar Fuse/Relay Box 1. Used on-board network "J519". 2. Fastening for the relay and fuse box with used on-board network "J519"....
Relay box, fuse box in the luggage compartment — removal and installation
Relay and fuse box in the luggage compartment, control units 1. Fuse box F "SF". 2. Used parking assistant "J446". 3. Mounting frame: for control units.; for...
Relay and fuse box in the luggage compartment, control units 1. Fuse box F "SF". 2. Used parking assistant "J446". 3. Mounting frame: for control units.; for...
Front Control Units — Location
Control units in the front of the vehicle 1. Used gas discharge lamp on the right "J344". 2. Used additional heater. J364-. 3. Used radiator fan...
Control units in the front of the vehicle 1. Used gas discharge lamp on the right "J344". 2. Used additional heater. J364-. 3. Used radiator fan...
Control units in the passenger compartment and in the rear of the vehicle — location
Overview of control units in the car interior 1. Used headlight corrector "J431". 1. Used adaptive lighting and headlight range control system "J745". 2. Used...
Overview of control units in the car interior 1. Used headlight corrector "J431". 1. Used adaptive lighting and headlight range control system "J745". 2. Used...
Switching blocks — general information and installation locations
Switching blocks 1. 6-pin junction box on pillar A on the front side. passenger: Plug connectors: "T5c", "T10y", "T10ab", "T10ac", "T17a", "T17f", "T17g",...
Switching blocks 1. 6-pin junction box on pillar A on the front side. passenger: Plug connectors: "T5c", "T10y", "T10ab", "T10ac", "T17a", "T17f", "T17g",...
Fuses — general information and location
Fuses 1. Fuse box A "SA". 1. Fuse for 2 batteries "S65"; installation location next to 2 batteries. 1. Battery isolation relay fuse "S171"; installation...
Fuses 1. Fuse box A "SA". 1. Fuse for 2 batteries "S65"; installation location next to 2 batteries. 1. Battery isolation relay fuse "S171"; installation...
Fuse box A (SA) — location and ratings
Fuse box A "SA" Installation location: on the positive contact of the battery in the luggage compartment. A. Battery disconnection pyropatron "N253". 1. Fuse 1...
Fuse box A "SA" Installation location: on the positive contact of the battery in the luggage compartment. A. Battery disconnection pyropatron "N253". 1. Fuse 1...
Relay/Fuse Box B (SB) — Location and Ratings
Relay/fuse box B "SB" before October 2011. The location of the relay/fuse box in "SB" left-hand drive vehicles before October 2011 is in the junction box of...
Relay/fuse box B "SB" before October 2011. The location of the relay/fuse box in "SB" left-hand drive vehicles before October 2011 is in the junction box of...
Fuse box C (SC) — location and ratings
Fuse box C "SC" up to 2009 model year The installation location of the fuse box C "SC" up to 2009 model year for left-hand drive vehicles: under the front trim...
Fuse box C "SC" up to 2009 model year The installation location of the fuse box C "SC" up to 2009 model year for left-hand drive vehicles: under the front trim...
Fuse box D (SD) — location and ratings
Fuse box D "SD" The location of the fuse box D "SD" for left-hand drive vehicles: under the front trim panel. panels on the lane side. passenger.. ST1. Fuse...
Fuse box D "SD" The location of the fuse box D "SD" for left-hand drive vehicles: under the front trim panel. panels on the lane side. passenger.. ST1. Fuse...
Fuse/Relay Box F (SF) up to 2009 model year
Fuse/Relay Box F "SF" up to 2009 model year Installation location of the relay/fuse box F "SF" up to 2009 model year: in the luggage compartment behind the...
Fuse/Relay Box F "SF" up to 2009 model year Installation location of the relay/fuse box F "SF" up to 2009 model year: in the luggage compartment behind the...
Fuse/Relay Box F (SF) from 2010 model year
The location of the relay/fuse block F "SF" since 2010 model year: in the luggage compartment behind the right side trim. ST1. Fuse box 1. ST2. Fuse box 2....
The location of the relay/fuse block F "SF" since 2010 model year: in the luggage compartment behind the right side trim. ST1. Fuse box 1. ST2. Fuse box 2....
Fuse/Relay Box F (SF) since November 2011
The location of the relay/fuse box F "SF" since November 2011: in the luggage compartment behind the right side trim. ST1. Fuse box 1. S12. Fuse box 2. S13....
The location of the relay/fuse box F "SF" since November 2011: in the luggage compartment behind the right side trim. ST1. Fuse box 1. S12. Fuse box 2. S13....
Splitters, switching blocks and relays
Splitter 2 for terminal 30 "TV22" with a socket for starting the engine from an external source of starter current "U6" until October 2011 Installation...
Splitter 2 for terminal 30 "TV22" with a socket for starting the engine from an external source of starter current "U6" until October 2011 Installation...
Ground connection points — tightening torques
Sedan 685. Ground connection point 1 at the front on the right side member. 638. Ground connection point on the right A-pillar. 688. Connection point with mass...
Sedan 685. Ground connection point 1 at the front on the right side member. 638. Ground connection point on the right A-pillar. 688. Connection point with mass...
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections of other Audi car models:
Electrical equipment: Equipment and devices Audi 80 B2 (1979-1986)
Electrical equipment: Lighting and appliances Audi 100 C4 (1990-1994)
Electrical equipment: Lighting and appliances Audi A3 Type 8L (1996-2003)
Electrical equipment: Equipment and devices Audi A6 C5 (1997-2004)
Electrical equipment: Instruments and switches Audi A8 D2 (1994-2002)
Electrical equipment: Equipment and devices Audi Q5 Type 8R (2008-2017)
Electrical equipment: Equipment and devices Audi A2 (1999-2005)
Electrical equipment: Equipment and devices Audi 80 B2 (1979-1986)
Electrical equipment: Lighting and appliances Audi 100 C4 (1990-1994)
Electrical equipment: Lighting and appliances Audi A3 Type 8L (1996-2003)
Electrical equipment: Equipment and devices Audi A6 C5 (1997-2004)
Electrical equipment: Instruments and switches Audi A8 D2 (1994-2002)
Electrical equipment: Equipment and devices Audi Q5 Type 8R (2008-2017)
Electrical equipment: Equipment and devices Audi A2 (1999-2005)
Share information:
- General information
- Operating instructions
- Power unit
- Petrol engines 1.8 l
- Petrol engines 1.8/2.0 l
- Petrol engines 3.0 l
- Petrol engines 3.2 l
- Fuel system (petrol)
- Diesel engines 2.0 l (CA*)
- Diesel engines 2.0 l (CJCB)
- Diesel engines 2.7/3.0 l
- Diesel engines 3.0 l
- Fuel system (diesel)
- Transmission
- Manual gearbox 0B1
- Manual gearbox 0B2
- Manual gearbox 0B3
- Manual gearbox 0B4
- Automatic transmission 0B5
- Automatic transmission 0B6
- Automatic transmission 0AW
- All-wheel drive system
- Chassis
- Front suspension
- Rear suspension
- Brake system
- Steering system
- Body
- Exterior
- Interior
- Seats
- Doors, locks and windows
- Security system
- Heating and air conditioning
- Electrical equipment
- Audio system
- Power devices
- Equipment and devices
- Lighting and lamps
- Electrical circuits
- General information
- Introduction to manual
- Troubleshooting
- Operating instructions
- Maintenance
- Power unit
- Petrol engines 2.0 (ALT)
- Petrol engines 2.0 (TFSI)
- Petrol engines 1.8 (MPI)
- Diesel engines
- Cooling system
- Air conditioner
- Fuel and exhaust system
- Ignition system
- Starting and charging
- Transmission
- Clutch
- Manual gearbox
- Automatic gearbox
- Drive shafts
- Chassis
- Brake system
- Front suspension
- Rear suspension
- Steering
- Body
- Exterior
- Interior
- Electrical equipment
- Equipment and devices
- Lighting and signaling
- Windscreen wipers and washers
- Electrical diagrams
- Electrical diagrams (since 2007)
- 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)
- Interior (internal elements)
- Electrical equipment
- Power devices
- Lighting and appliances
- Electrical circuits
- 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
- Clutch and drive shafts
- Car gearbox
- Chassis
- Suspension and wheels
- Steering
- Brake system
- Body
- Interior
- Exterior
- Electrical equipment
- Equipment and devices
- Lighting and signaling
- Power devices
- Electrical circuits
- 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
- Heating and ventilation
- Electrical equipment
- Power devices
- Equipment and devices
- Electrical circuits
- General information
- Vehicle description
- Maintenance
- 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
- Heating and ventilation
- Body parts
- Electrical equipment
- Fuses and relays
- Power devices
- Lighting and lamps
- Tools and devices
- Electrical circuits