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

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Check of fires of stoplights

Constant control

 PERFORMANCE ORDER

  1. Fires of stoplights in Audi A4 receive power supply directly from accumulator plus (through a safety lock and the switch of fires of stoplights). It means that they have to burn also when pressing a brake pedal without inclusion of ignition.
  2. The wall behind the car has to be lit with red light on the right and at the left if you press a brake pedal.
  3. Or at the movement in a column check in a rearview mirror whether both fires of a stoplight of your car are reflected in reflectors of headlights or in varnishing of the car going behind.

Switch of fires of a stoplight

The switch of fires of a stoplight (3) settles down in an arm over a brake pedal. It should not be confused to ventilating valves (1 and 2) of system of adjustment of speed. 4 – control unit of blocking of departure of the car.

The switch of fires of a stoplight is in Audi over a pedal of a brake and is available only after dismantle of a reception pocket at the left (the head Salon).

If the brake pedal is pressed, then the pin of the switch moves forward and closes contact with stoplight lamps.

Adjustment of the switch of fires of a stoplight

 PERFORMANCE ORDER

  1. Dismantle a reception pocket under the control panel at the left (the head Salon).
  2. Press a brake pedal a hand.
  3. With a force wring out the switch of fires of a stoplight in its guide up.
  4. Now release a pedal of a brake and pull back against the stop.
  5. At the expense of it the switch of fires of a stoplight will become straight.
  6. Such adjustment is carried out only once at installation of the switch since after repeated adjustment the switch will not be clamped in a guide rather reliably.

Check of the switch of fires of a stoplight

If both lamps of fires of a stoplight failed, check whether the switch is a malfunction source:

 PERFORMANCE ORDER

  1. Disconnect the wire socket on the switch of fires of a stoplight.
  2. Close an office paper clip or a piece of a wire contacts in the socket.
  3. If now fires of a stoplight burn (though still it was not), then the switch is faulty.

 Council: Do not confuse the switch of fires of a stoplight with the switch on a brake pedal from system of adjustment of speed. The last has an additional connection to a vacuum hose.