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
   Check of system of indexes of turns and the alarm system
   Check of fires of stoplights
   The help at malfunctions
   Check of a small 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 the alarm system

The constant control

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


  1. At the switched off ignition press the alarm system switch on a control panel.
  2. All six lanterns 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 lanterns on the corresponding party and a green control bulb concerning them rhythmically flash.

Infringements in work of indexes of turns

  • If at the included ignition the green control bulb only shortly flashes, one lamp накаливания ahead or behind has failed. But the failed lateral lantern of the index of turns is not registered. In an alarm system blinking the fused lamp too is not appreciable by a rhythm of work of indexes of turns. About replacement of lamps Illumination see in the head.
  • If at the included indexes of turn or the alarm system lanterns burn constantly the relay-breaker is faulty.
  • If indexes of turns blink that in slowed down in the accelerated rhythm and all plug connections, including the wire of lanterns connected to weight, are perfectly in order – it is necessary to replace the relay in the alarm system switch.
  • If the alarm system without indexes of turns or on the contrary pressure through a corresponding safety lock (the Electrotechnical equipment see the table in the head) does not move works only or the alarm system switch (about dismantle Tools and devices see the head) is faulty.

Relay-breaker dismantle

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

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


  1. Cautiously wring out a small screw-driver a switch key.
  2. Seize the switch from sides flat-nose pliers and take out from an assembly aperture.

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