Audi A4

since 1994 of release

Repair and car operation

A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
- Tools and devices
   Check of control tools and bulbs
   The combined device
   Indicator of amount of fuel
   The 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 liquid
   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 headlights of a driving beam
   Control bulb of a safety cushion
   Control bulb of ABS
   Control bulb of the parking brake
   Control bulb of a battery charging
   System of autocontrol of the car
   Ignition lock
   Check of switches
   Alarm buzzer of lighting
   Warmed back glass
   Check of screen wipers and stekloomyvatel
   Engine of screen wipers
   The help at malfunctions
   The liquid gulf for washing of glasses
   System of washing of headlights
   Mirror adjustment with the electric drive
   Central lock
   Window regulators 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

Плинтус мдф Kaindl 50 мм Forest.

Check of switches


    Needle contact of a control lamp you can pierce isolation of a wire and define, in what wire there is a tension. Find an electric circuit for each switch. In the beginning it is checked, whether tension arrives in general on the switch; thus it is necessary to include ignition or lighting several times. Then it is checked, whether there is a conductivity in the switch in the relevant situation. On an example of knot of the switch of the lock of ignition it looks as follows: Dismantle above and below facing of a steering column how it is described in the section on dismantle of lever switches in this chapter above. Connect a connecting wire of a control lamp to weight. Pierce a control tip isolation of a checked wire. Both plugs 30 of a thick red wire always should be energized from the accumulator. The gray/yellow wire of the plug P is in the position "Ruhestellung" (rest) of the lock of ignition energized and is disconnected at its turn. The black/yellow wire of the plug X (and also plugs 75) is energized only in the provision of a key of "Zundung ein" (ignition is included). The thin red wire to the plug 86s is energized until the key is not taken out. Here the radio receiver, and also (for information) by the relay of a delay of switching off of illumination of salon and an alarm buzzer in the combined device is connected. The black wire of the plug 15 receives tension in the provision of a key of "Zundung ein" (ignition is included) and «Anlassen» (engine start). The red/black wire from the plug 50 of a signal of start on a starter is energized only in the situation "Anlassen" (engine start) At the plug 50b the same function, as at the plug 50, serves for preliminary excitement of the generator already in the course of engine start.