Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Removing and installing/replacing sensor for lane change warning
Necessary preliminary tasks:
- Remove REAR BUMPER PANEL .
Unfasten plug connection (1) and disconnect.
Unlock catch (2).
Remove sensor (3) from bracket in direction of arrow.
Replacement:
Remount frame (2) for new sensor (1).
Attention!
If, in the event of side damage to the vehicle, it is not necessary to replace the tail panel, observe the following points:
- Fit middle bumper panel guide on undamaged side
- Use middle bumper panel guide as a gauge in order to check or correct the position of the remaining connecting points.
- Middle bumper panel guide must be able to be fitted without tension.
Replacement:
- Carry out PROGRAMMING/ENCODING .
Run the service function below in the following cases:
- After replacing the sensor for the lane change warning
- After a body repair in the sensor area (including when the sensor for the lane change warning was not replaced)
Service Function:
- Driver assistance
- Lane Change Warning
- Initialization of the SWW sensor system
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.