Front Suspension

Level Control System Sensor

Special tools, testers and auxiliary items required

• Vehicle Diagnostic, Testing and Information System (VAS 5051B)

General Information

Vehicles with electronically-controlled damping (Audi magnetic ride) and/or gas discharge lamps have an automatic headlamp range control system as standard equipment.

In order to function, the electronic damping (Audi magnetic ride) and automatic headlamp range control require information about the compression or rebound travel on the front and rear axles.

For this, the position of the left/right track transverse link in relation to the body is transferred via a coupling rod to left front level control system sensor (G78) and right front level control sensor (G289). These transmit electrical signals to the electronic damping control module (J250) and/or left/right high-intensity gas discharge lamp control module (J343/344).

At the rear axle, these signals are transmitted from the left rear level control system sensor (G76) and right rear level control system sensor (G77) to the electronic damping control module and/or the left/right high-intensity gas discharge lamp control module.

These signals are required for determining vehicle level.

The headlamp range control responds automatically to changes in the vehicle level.

The vehicle level can change in the following situations:

• Trailer Mode.

• Different load conditions; vehicle empty, vehicle partially or fully loaded.

• Program the control position on vehicles with electronically-controlled damping (Audi magnetic ride) and check the headlamp adjustment if:

• Installation work has been performed on the level control system sensor.

• The transverse link was removed and installed.

• Threaded connections - 3 or 5 - were loosened.

The level control system sensor is only available as a replacement part together with the connecting link and upper and lower mounting plates.

- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram the control position using the (VAS 5051B).

Removing






- Disconnect the harness connector - 6 -.

- Remove hex nut - 3 -.

- Remove hex bolt - 5 -.

- Remove level control system sensor - 4 -.

Installing

Install in reverse order of removal. Note the following:

The hooks on the coupling rod must be guided onto the transverse link.

Sensor lever must point outward.

Tightening specifications, refer to => [ Subframe, Diagonal Brace, Ball Joint, Stabilizer Bar, Transverse Link, Bracket and Vehicle Level Sensor Overview ] Subframe, Diagonal Brace, Ball Joint, Stabilizer Bar, Transverse Link, Bracket and Vehicle Level Sensor Overview.

- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram the control position using the (VAS 5051B).

- Perform headlamp basic setting.