Audi A4

since 1994 release

Repair and operation of the car

A4 Audi
+ 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
- Tools and devices
   Check of control tools and bulbs
   The combined device
   Indicator of amount of fuel
   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 fluid
   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
   The warmed back glass
   Check of screen wipers and windscreen washers
   Engine of screen wipers
   The help at malfunctions
   The gulf of liquid for washing of glasses
   System of washing of headlights
   Adjustment of a mirror with the electric drive
   Central lock
   Window regulators with the electric drive
   Sliding/removable roof with the electric drive
   Radio receiver
   The antenna on back glass
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics

Ignition lock

At the dismantled facing of a steering column both secret screws (1 and 2) which fix ignition lock switch knot on the lock are visible. The figure "3" showed the socket connected to switch knot.

On the lock of ignition (2) the receiver (1) respondent of the lock of ignition which if necessary intensifies blocking of departure of the car is placed.

In this section we will consider electric knot of the lock of ignition. But the workshop has to carry out repair of the castle mechanism.

Dismantle of knot of the switch of the lock of ignition


  1. Dismantle facing of a steering column above and below as it is described in the section Switches.
  2. Remove a varnish on the press and weaken two small secret screws above and below on an ignition lock switch knot arm.
  3. Remove switch knot down.
  4. At installation of new knot of the switch track that the pin of control of the lock entered dredging on switch knot.
  5. Screw up secret screws and fix them a varnish drop.

Breakage of the lock of ignition

This description will not make of you the car thief, and significantly will help to continue a trip at defect in the ignition lock. Despite it, the ignition key has to be, at least because of presence of the respondent of blocking of departure of the car. Certainly, it also has to turn in the lock in order that it was possible to remove blocking of a wheel. At defects in the lock of management you should not continue a trip, differently blocking of a wheel can work during the movement.


  1. Dismantle a reception pocket under a control panel at the left (the head Salon).
  2. Disconnect the mnogoshtyrkovy socket on the ignition lock. Sockets of wires which have to become isolated nakorotko, are naked now.
  3. Connect now, for example, an office paper clip, contacts of one of two thick red wires with contact of a black wire. Thanks to it ignition joins.
  4. For start of the engine make to yourself the isolated second crossing point of a wire which connects to a red/black wire in the beginning.
  5. Apply the second crossing point for a moment to already existing crossing point, and at once clean as soon as the starter starts the engine.
  6. It is better to clean the second crossing point absolutely, and it is good to insulate the first in order that it could not touch the bared details. Otherwise powerful short circuit since red wires have no safety lock will turn out.
  7. To switch off the engine, clean a crossing point between a red and black wire.