Level Control System Sensor, Removing And Installing

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

General Information

Vehicles with electronic damping and/or HID headlamps have standard automatic headlamp range control, refer to HEADLAMPS .

To function properly, the electronically controlled damping and automatic headlamp range control system need information about compression travel or rebound travel at the front and rear axles.

For this, the position of the left/right lower 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 HID Headlamp Control Module -J343- / -344-.

Left/Right HID Headlamp Control Module -J343- / -344-, servicing, refer to LEFT/RIGHT HID HEADLAMP CONTROL MODULE -J343- / -J344-, REMOVING AND INSTALLING .

At the front axle, 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 -J250- and/or the Left/Right HID Headlamp Control Module -J343- / -344-.

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

NOTE:

Programming the control position and checking the headlamp basic setting is always necessary in vehicles with electronically controlled damping if:

the lower transverse link has been removed and reinstalled or replaced
the upper transverse link was removed and installed or replaced,
the subframe was replaced,
Installation work has been performed on the level control system sensor,
the level control system sensor has been replaced,
the coil springs were replaced,
The level control system sensor coupling rod threaded connection was loosened at the lower transverse link.

The basic setting of the headlamps, refer to HID HEADLAMP, ADJUSTING, ADJUSTING, USA VEHICLES or HID HEADLAMPS, ADJUSTING, REST-OF-WORLD VEHICLES .

If the vehicle has electronically controlled damping, then the control position must be programmed, refer to CONTROL POSITION, REPROGRAMMING USING Vehicle Diagnostic Tester and Vehicle Diagnostic Tester.

If the control position was reprogrammed on vehicles with lane assist, the Directional Stabilization Assistance Control Module -J759- must be calibrated again, refer to CALIBRATION PROCEDURE .

Replacing level control system sensor with subframe installed.

-- Remove the wheel.

-- Disconnect the connector -2-.

Fig 1: Identifying Bolt -1-, Harness Connector -2- & Screws -3-

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1-.

-- Remove screws -3- with angled wrench. Do not bend upper retaining plate when doing so.

-- Remove level control system sensor.

NOTE:

Only sensors of the same version may be installed.

-- Adapt replacement part accordingly and install.

-- Install the bolts -3- using an angled wrench. Do not bend upper retaining plate when doing so.

Fig 2: Identifying Bolt -1-, Harness Connector -2- & Screws -3-

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Hold Level Control System Sensor securely when tightening screws -3-.

Sensor lever must point outward.

-- Install the bolt -1-.

Fig 3: Identifying Bolt -1-, Harness Connector -2- & Screws -3-

Courtesy of AUDI OF AMERICA, LLC

-- Establish the connector -2-.

Tightening specifications, refer to OVERVIEW - UPPER TRANSVERSE LINK, TIE ROD, COIL SPRING, LOWER TRANSVERSE LINK AND LEVEL CONTROL SYSTEM SENSOR .

-- Perform the basic setting of the headlamps, refer to HID HEADLAMP, ADJUSTING, ADJUSTING, USA VEHICLES or HID HEADLAMPS, ADJUSTING, REST-OF-WORLD VEHICLES .

-- If the level control system sensor was removed and installed on a vehicle with electronic damping or if the linkage was loosened, the control position must be reprogrammed using the Vehicle Diagnostic Tester, refer to CONTROL POSITION, REPROGRAMMING USING Vehicle Diagnostic Tester .

-- If the control position was reprogrammed on vehicles with lane assist, the Directional Stabilization Assistance Control Module -J759- must be calibrated again, refer to CALIBRATION PROCEDURE .