TT Quattro Coupe V6-3.2L (CBRA) (2008)
Ride Height Sensor: Service and Repair
Rear Suspension
Left Rear Level Control System Sensor G76 and Right Rear Level Control System Sensor G77, removing and installing
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 electronically-controlled damping (Audi magnetic ride) and automatic headlamp range control require information about
compression or rebound travel at front and rear axles.
For this, the position of the left/right transverse link in relation to 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 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 J343/344, servicing.
At front axle, these signals are transmitted from Left Front Level Control System Sensor G78 and Right Front Level Control Sensor G289 to
Electronic Damping Control Module J250 and/or Left/Right High-intensity Gas Discharge Lamp Control Module J343/344.
These signals are required for determining vehicle level.
The automatic headlight 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
Note:
^
It is necessary to program the control position on vehicles with electronically controlled damping (Audi magnetic ride) and to check headlamp
adjustment if:
^
Assembly work was performed on level control system sensor
^
Lower transverse link was removed and installed,
^
Threaded connections -2- or -3- were loosened.
As a replacement part, vehicle level sensor is only available together with coupling rod and lower retaining plate.
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On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram control position
Headlight basic setting.
Removing
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Separate connector -1-.
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Remove bolts -2- and -3-.
-
Remove sensor.
Installing
Installation is in reverse order of removal. Observe the following when doing so:
Sensor left must face toward outside of vehicle.
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On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram control position
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Perform headlamp basic setting