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
   Check of system of indexes of turns and alarm system
   Check of fires of stoplights
   The help at malfunctions
   Check of a horn of a sound signal
   Light signal
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics


Check of system of indexes of turns and alarm system

Constant control

The system of the alarm system has to be always in working order therefore its switch receives food from accumulator plus directly through a safety lock. On the contrary, indexes of turns receive tension from the plug 15 only at the included ignition.


  1. At the switched-off ignition press the switch of the alarm system on the control panel.
  2. All six lamps of indexes of turns, control bulb in the switch of the alarm system and both control bulbs of indexes of turns flash in one rhythm.
  3. Switch off the alarm system, include ignition.
  4. By pressing the lever of indexes of turn all lamps on the relevant party and the green control bulb relating to them rhythmically flash.

Violations in work of indexes of turns

  • If at the included ignition the green control bulb only shortly flashes, then one glow lamp ahead or behind failed. But the failed side lamp of the index of turns is not registered. In a blinking of the alarm system the fused lamp is not noticeable by a rhythm of work of indexes of turns too. About replacement of lamps see in the head Osveshcheniye.
  • If at the included indexes of turn or the alarm system lamps burn constantly, then the relay breaker is faulty.
  • If indexes of turns blink in slowed down, in the accelerated rhythm and all plug connections, including the wire of lamps connected to weight, as it should be – it is necessary to replace the relay in the switch of the alarm system.
  • If only the alarm system without indexes of turns or on the contrary works, then tension through the corresponding safety lock does not move (see the table in the head the Electrotechnical equipment) or the switch of the alarm system is faulty (about dismantle see the head Instrumenty and devices).

Dismantle of the relay breaker

The relay breaker (1) in Audi A4 is integrated into the switch of the alarm system. It is dismantled the same as the keyboard switch in the control panel ("Tools and devices").

The relay breaker is in Audi A4 not on a support from the relay. It is integrated into the switch of the alarm system. Reason: economy of an assembly element. Here about dismantle:


  1. Carefully wring out the small screw-driver a switch key.
  2. Grasp the switch from sides flat-nose pliers and take out from an assembly opening.

The temporary help at the faulty relay breaker

At the failed relay breaker the further trip is unsafe, especially in the dark participants of traffic will not know about your intention to turn. In this case:


  1. Dismantle the switch of the alarm system with the relay breaker and disconnect the socket.
  2. Make a crossing point between plugs 1 and 6.
  3. For this purpose insert from the back party an office paper clip or a short piece of a wire into the corresponding nests so that to connect contacts of the socket.
  4. Insulate a wire.
  5. Now, if to press the lever of inclusion of indexes of turns, one party burns constantly.
  6. Switching on and off the lever of indexes of turns, you receive a faltering rhythm.