Audi A4: Level Control System Sensor
Overview - Front Level Control System Sensor

1 - Bolt
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
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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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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The windshield washer reservoir contains the
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Overview - Mobile Online Services
The mobile online service (1W3) consist of the eCall,
connected Gateway, and the Data Bus on Board Diagnostic
Interface -J533-.
The Data Bus on Board Diagnostic Interface -J533- is
installed under the rear bench seat for crash safety. The Data
Bus on Board Diagn