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

Window regulators with the electric drive

The mode of functioning of window regulators decides not only switches, but also the control unit by window regulators on a support on additional relays at the left under a control panel.

Functioning: at the included ignition glass at doors of the driver or the passenger near the driver slides up or down to an emphasis by short pressing or a switch otzhatiya. Thus movement of glass stops if shortly to press a key in an opposite direction.

For reasons of safety such comfortable way of inclusion in back doors exists only for glass descent.

At the switched-off ignition by pressing the button all glasses move against the stop only down. Glass moves up only if the window regulator key is pressed.

Child protection: window regulators with the electric drive in back doors are blocked by the central switch in an armrest of a door of the driver.

Anti-theft device: if at the switched-off engine the door of the driver opens and is again closed, all window regulators are disconnected.

Comfortable closing: in all cars where there are window regulators with the electric drive, they can be closed at the same time when closing a door of the driver and a door of the passenger near the driver. For this purpose it is necessary to take slightly more long a key in situation "is closed". In the presence of a sliding roof with the electric drive it too is thus closed.

Protection when jamming: If when lifting up glass encounters an obstacle, it begins at once movement in the opposite direction and falls by some centimeters.



    If any glass does not move, check automatic switches in nests 22 and 23 in «a 8-seater support of the relay» at the left under a control panel on conductivity. Check of switches: If only one window regulator does not work, try to put it in action from the second switch. Thus you can establish, whether there is a source of malfunction in the first switch. Such check cannot be carried out with glass to doors of the driver. Remove door facing. For the sake of experience trade places sockets of switches so that glass at doors of the driver was put in action by definitely serviceable switch. Check of a bringing wire: if the switch as it should be, disconnect the wire socket in the engine of a window regulator and check the voltmeter the socket, whether on a window regulator the correct signals really arrive. If tension indicators correct, a source of defect there is an engine of window regulators. But if on the engine tension does not move, check a wire and the control unit. Bad movement of glass can be a consequence jammed directing windows.

Table of measuring sizes of window regulators

In the table nominal sizes on an example of a window regulator of a door of the driver (cars with four window regulators) are specified.

On back glasses and in cars with two window regulators wires of other flowers (see footnotes) are partially laid.

Color of a wire
Measurement is relative
Nominal size
It is measured
The red/grey
«Ignition incl.» or the door is not closed after the last time, when «Ignition incl.»
Apprx. 12 In
Tension from the block unitary enterprise - a ravleniye
The white/yellow
Apprx. 12 In
Tension of a signal «The central closing»
The white/yellow
Key keeping in the door lock in situation "Is closed"
Apprx. 12 In
Tension of a signal «The central closing»
Yellow/dark blue 1)
«Ignition incl.» or the door is not closed after the last time, when «Ignition incl.»
Apprx. 12 In
Switching signal «The window is open»
Black/yellow 2)
«Ignition incl.» or the door is not closed after the last time, when «Ignition incl.»
Apprx. 12 In
Signal about switching «The window is closed»
The black
«Ignition incl.»
Apprx. 12 In
Tension from the ignition lock
The brown
Apprx. 12 In
Connection to weight
The red/green
Apprx. 12 In
Constantly ±

1) either green/yellow, or white/black
2) either black/red, or white/black, or white/lilac

Temporary help on the way

For window regulators with the electric drive any mechanical emergency control is not provided. But if window regulators do not work, you do not need to go with an open window:


    If the switch is faulty, try to close a window by means of the second switch. If it did not turn out (for example, at doors of the driver), dismantle the switch of other window or connect a connecting wire to the second, serviceable switch (about dismantle of switches in this chapter above). By means of this serviceable switch you can close a window. If the engine of a window regulator is faulty, it can be dismantled, having removed door facing. For this purpose weaken tightening connection between a window and a window regulator (screws on a reverse side – head of the Detail of a body). Now shift glass up and fix in this situation with the help of a sticky tape or a wooden wedge.

Replacement of the engine of a window regulator

Engines of window regulators are dismantled the same as mechanical lifts (head of the Detail of a body). In installation of the engine of a window regulator important programming of an emphasis:


    Include ignition. By means of the switch lift glass up against the stop. Now several times within a second take the switch in the situation "top". Check: press the switch in a position "down". Now glass should fall itself down to an emphasis. Repair of the electric motor is not provided.

The engine (1) window regulator with the electric drive with the disconnected socket (2) and three fixing screws (3-5).

Here the socket (2) engines (1) window regulator to inspect by means of the voltmeter and a control wire (3), whether the correct signals is removed
arrive on a window regulator.