Audi A4

since 1994 release

Manual of the car

Audi A4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
- Tools and devices
   Check of control tools and bulbs
   The combined device
   Indicator of amount of fuel
   Indicator of temperature of cooling liquid
   Auxiliary devices
   Control bulbs above in the combined device
   Control bulb of cooling liquid
   Control bulb of level of brake fluid
   Control bulb of pressure of oil
   Control bulb of indexes of turns
   Control bulbs in devices of a round form (and nearby)
   Control bulb of indexes of turn on the trailer
   Control bulb of ASR
   Control bulb of the lock of ignition
   Control bulb of high beam headlamps
   Control bulb of a safety cushion
   Control bulb of ABS
   Control bulb of the parking brake
   Control bulb of accumulator charging
   System of autocontrol of the car
   Ignition lock
   Check of switches
   Alarm buzzer of lighting
   The warmed back glass
   Check of screen wipers and windscreen washers
   Engine of screen wipers
   The help at malfunctions
   The gulf of liquid for washing of glasses
   System of washing of headlights
   Adjustment of a mirror with the electric drive
   Central lock
   Window regulators with the electric drive
   Sliding/removable roof with the electric drive
   Radio receiver
   The antenna on back glass
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics


Auxiliary devices

As a special complete set below on the right and at the left two additional devices – the sensor of temperature of oil and the voltmeter can be installed in the combined device. Check:


  1. Oil temperature sensor: disconnect a wire from the sensor (about assembly situation see in the following section), apply to weight.
  2. If the arrow of the tool does not deviate, then defect in the bringing wire, the microprocessor or the device.
  3. Otherwise the reason in the sensor.
  4. Voltmeter: check tension on voltmeter sockets at the disassembled combined device (the socket is connected).
  5. If tension is, but there is no indication, then the device is faulty.

Assembly position of the sensor of temperature of oil

  • Four-cylinder engine: The sensor is on a flange of an oil filter at the left on the engine. Color of a wire: blue/white.
  • Six-cylinder engine: The sensor of temperature of oil is at the left below on the forward party of the engine. Because of its inaccessibility wires to the sensor are united in one shtekerny socket behind on the left head of the block of cylinders. Colors of wires of shtekerny connection: black/brown from the oil temperature sensor to the socket; blue/white from the socket to the combined device. Other wires of the socket: white/grey to the oil pressure switch.

The sensor (1) of the indicator of temperature of oil and the sensor of pressure of oil (2) are in the four-cylinder engine on a flange of an oil filter on the left side of the engine.