Level Control System Sensors
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. Refer to [For transmission(s) 02E] [For engine(s) CBRA, BPY, CETA, CCTA, CEPB, CDMA] General Information .
In order to function, the electronically-controlled damping (Audi magnetic ride) and automatic headlamp range control require information about the compression or rebound travel at the front and rear suspensions.
For this, the position of the left/right transverse link in relation to the body is transferred via a coupling rod to Left Rear Level Control System Sensor -G76- and Right Rear Level Control System Sensor -G77-. These transmit electrical signals to the electronic damping control module -J250- and/or left/right high-intensity gas discharge lamp control Module -J343/344-.
Left/right high-intensity gas discharge lamp control module, servicing, refer to [For transmission(s) 02E] [For engine(s) CBRA, BPY, CETA, CCTA, CEPB, CDMA] Removal and Installation .
At the front suspension, these signals are transmitted from the Left Front Level Control System Sensor -G78- and Right Front Level Control Sensor -G289- 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 automatic headlamp range control reacts independently to changes in 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:
- Assembly work was performed on level control system sensor.
- The lower transverse link was removed and installed.
- Threaded connections -2- or -3- were loosened.
Vehicle level sensor is available as replacement part only complete with coupling rod and upper and lower retaining plate s.
-- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram control position using the Vehicle Diagnosis, Testing and Information System VAS 5051B.
Headlamp basic setting, refer to [For transmission(s) 02E] [For engine(s) CBRA, BPY, CETA, CCTA, CEPB, CDMA] Diagnosis and Testing .
Removing
-- Disconnect the harness connector -1-.
-- Remove the bolts -2- and -3-.
-- Remove sensor.
Installing
Installation is performed in the reverse order of removal. Observe the following when doing so:
Tightening specifications, refer to SUBFRAME, DIAGONAL BRACE, LOWER TRANSVERSE LINK, UPPER TRANSVERSE LINK, TIE ROD AND LEVEL CONTROL SYSTEM SENSOR ASSEMBLY OVERVIEW .
The sensor lever must face toward the outside of the vehicle.
-- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram control position using Vehicle Diagnosis, Testing and Information System VAS 5051B
-- Perform headlamp basic setting. Refer to [For transmission(s) 02E] [For engine(s) CBRA, BPY, CETA, CCTA, CEPB, CDMA] Diagnosis and Testing .