Audi A4: Level Control System Sensor
Overview - Front Level Control System Sensor
1 - Bolt
- 9 Nm
2 - Front Level Control System Sensor
- Left Front Level Control System Sensor -G78-
- Right Front Level Control System Sensor -G289-
- With coupling rod and retaining plate
- Removing and installing. Refer to → Chapter "Left/Right Front Level Control System Sensor -G78-/-G289-, Removing and Installing".
- Installation position: sensor coupling rod points outward
3 - Subframe
4 - Control Arm
5 - Nut
- 9 Nm
- Replace after removing
- Self-locking
Overview - Rear Level Control System Sensor
1 - Rear Level Control System Sensor
- Left Rear Level Control System Sensor -G76-
- Right Rear Level Control System Sensor -G77-
- With coupling rod and retaining plate
- Removing and installing. Refer to → Chapter "Left/Right Rear Level Control System Sensor -G76-/-G77-, Removing and Installing".
- Installation position: Sensor coupling rod points toward the rear
2 - Bolt
- 9 Nm
3 - Subframe
4 - Front Upper Transverse Link
5 - Nut
- 9 Nm
- Replace after removing
- Self-locking
Left/Right Front Level Control System Sensor -G78-/-G289-, Removing and Installing
Special tools and workshop equipment required
- Torque Wrench 1410 -VAG1410-
Caution
This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog prior to starting procedure.
Mandatory Replacement Parts
- Nut - Front Level Control System Sensor to Subframe
Removing
- Disconnect the connector -3- and free up the wire.
- Remove the coupling rod nut -2-.
- Remove the bolt -1- and remove the level control system sensor
Installing
Install in reverse order of removal and note the following:
- Adjust the headlamps. Refer to → Electrical Equipment; Rep. Gr.94; Headlamps; Headlamps, Adjusting.
- Driver assistance systems front camera, calibrating. Refer to → Chapter "Driver Assistance Systems Front Camera, Calibrating".
Tightening Specifications
- Refer to → Chapter "Overview - Front Level Control System Sensor"
Left/Right Rear Level Control System Sensor -G76-/-G77-, Removing and Installing
Special tools and workshop equipment required
- Torque Wrench 1410 -VAG1410-
Caution
This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog prior to starting procedure.
Mandatory Replacement Parts
- Nut - Rear Level Control System Sensor to Front Upper Transverse Link
Removing
- Disconnect the connector -3-.
- Remove the coupling rod nut -1-.
- Remove the bolt -2- and remove the level control system sensor.
Installing
Install in reverse order of removal and note the following:
- Adjust the headlamps. Refer to → Electrical Equipment; Rep. Gr.94; Headlamps; Headlamps, Adjusting.
Tightening Specifications
- Refer to → Chapter "Overview - Rear Level Control System Sensor"
Special Tools
Special tools and workshop equipment required
- Torque Wrench 1410 -VAG1410-
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Axle Alignment Information
Wheel alignment must only performed using VW/Audi-approved
alignment equipment.
Each time wheels are aligned, both front and rear wheels
must be aligned. Otherwise, the correct driving handling of t
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Refrigerant Circuit, General Precautions
General Information
Ensure absolute cleanliness when working.
Wear safety goggles and gloves when working with refrigerant
and nitrogen.
Workshop extraction systems are to be switched on.
Use the service station to discharge the refrigerant
circuit, only then open screw connections and replac
Overview - Subframe
Subframe
Caution
There is a risk of damaging the threads on the subframe
threaded connection to the body.
The subframe bolts on the body must not be loosened or
tightened with an impact wrench.
Always install all bolts by hand for the first few turns.
There is a risk of damaging the s
