Audi A4

Since 1994 of release

Repair and car operation

Audi А4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
- Tools and devices
   Check of control tools and bulbs
   The combined device
   The indicator of quantity of fuel
   The indicator of temperature of a cooling liquid
   Auxiliary devices
   Control bulbs above in the combined device
   Control bulb of a cooling liquid
   Control bulb of level of a brake liquid
   Control bulb of pressure of oil
   Control bulb of indexes of turns
   Control bulbs in devices of the round form (and nearby)
   Control bulb of indexes of turn on the trailer
   Control bulb ASR
   Control bulb of the lock of ignition
   Control bulb of headlights of a headlight
   Control bulb of a pillow of safety
   Control bulb ABS
   Control bulb of a lay brake
   Control bulb of gymnastics of the accumulator
   System of the autocontrol of the car
   The ignition lock
   Check of switches
   Alarm buzzer of illumination
   Cigar Lighter
   Warmed back glass
   Check of screen wipers and windscreen
   The engine of screen wipers
   The help at malfunctions
   Gulf of a liquid for washing of glasses
   System of washing of headlights
   Adjustment of a mirror with the electric drive
   The central lock
   window raiser with the electric drive
   Sliding/demountable roof with the electric drive
   Radio receiver
   The aerial on back glass
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics

The combined device

Here we dismantled the decorative panel of the combined device (3) to bare both fixing screws with crosswise heads (1 and 2).

The mnogoshtyrkovyj socket (2) can be removed from the combined device if highly to wring out a plastic clip (1).

To dismantle a back cover of the combined device, it is necessary to weaken in the beginning both screws TORX 2 both 3. Figures 1 and 4 designate two of four screws who should be weakened to unscrew a payment.

Dismantle of a back cover of the combined device: after easing of screws it is necessary to open only six plastic clips (two of them are shown by figures "1" and 2).

The disassembled combined device: 1 – the decorative panel; 2 – the indicator of temperature of oil; 3 – a payment with devices; 4 – a back cover; 5 – the liquid crystal display.

At the left ahead on a transmission you see the pulse gauge of a tachometre (1). For dismantle of the pulse gauge wring out downwards a clamp (a direct arrow), turn the pulse gauge (the bent arrow) and take out it from a transmission. At installation grease with vaseline rubber rings of round section.

Dismantle of the combined device


  1. Open the device of adjustment of a steering wheel, pull a steering wheel back and wring out downwards.
  2. Dismantle a steering wheel (the head the Suspension bracket of wheels and a steering).
  3. Dismantle the top cover of lever switches behind a steering wheel. For this purpose ослабьте in the bottom part of facing on the right and at the left two screws with crosswise heads also remove the top part of facing.
  4. Cast away back the decorative panel under the combined device.
  5. Loosen the two screws with crosswise heads below on the combined device.
  6. Cautiously take out the combined device from a control panel.
  7. Having weakened a clamp (highly wring out a plastic clip or deblock clamps), cautiously remove многоштырьковый a socket.

 Council: At replacement of the combined device the workshop should transfer the information on run from the old device on the new. For these purposes the device for reading of computer V.A.G 1551 is used. In the same way adjustment of the indicator of quantity of fuel in a fuel tank, the indicator of the expense of fuel and the indicator of periodicity of maintenance service is in case of need carried out.

Replacement of control bulbs in the combined device

Control bulbs vary from an underside of the combined device without its further dismantling. Lamps накаливания control bulbs in Audi are strongly soldered to the cartridges and as spare parts are on sale only in gathering. At their purchase consider colour of cartridges: bulbs by capacity of 1,1 Vt and 1,2 Vt with cartridges of different colour are put. To dismantle a bulb cartridge, turn it on a turn quarter to the left and take out.

The same concerns and scale illumination. But it is necessary to pay attention that some of these bulbs are supplied by orange caps. Caps are rearranged on new bulbs.

The faulty combined device

Unfortunately, Audi offers the combined device for replacement only in gathering. Separate components are not on sale, therefore at its malfunction it is necessary to start a hand deeply in a pocket.

The one who is not afraid of electronics, can venture, at least, on dismantling of the combined device and to examine a payment on presence of obvious defects.

Dismantling of the combined device


  1. Dismantle a back cover of the combined device. For this purpose ослабьте two screws TORX at the left and on the right also wring out six plastic clips.
  2. Unscrew a payment (four more screws TORX).
  3. The speedometer and tachometre are soldered by sockets; the smaller tool on the size is connected with big in one constructive element.
  4. Additional tools for measurement of temperature of oil and onboard pressure are dismantled separately (шестигранная a nut on an underside; the inserted sockets).