Adjusting your Xenon headlights correctly is crucial for both safety and optimal visibility. This guide provides a step-by-step walkthrough of the Vcds Headlight Adjustment procedure for VW and Audi vehicles equipped with older Xenon systems using KW-1281. While this process initializes the headlights to their center position, remember that manual adjustment using the adjusting screws against a proper aiming target is still necessary for complete alignment.
This procedure will not work on newer vehicles that utilize KWP-2000 or CAN systems. Refer to the Ross-Tech wiki for procedures specific to your vehicle.
Before you begin, ensure your vehicle meets these prerequisites:
- Level Ground: Park the vehicle on a level surface and allow the suspension to settle.
- Parking Brake: Ensure the parking brake is disengaged (OFF).
- Ignition: Turn the ignition to the “On” position without starting the engine.
- Headlights: Make sure the headlights are switched “Off.”
Now, follow these steps to perform the VCDS headlight adjustment:
Initiating the Adjustment Procedure
- Select Xenon Range: Connect your VCDS interface and navigate to [55 – Xenon Range] in the control module selection. For some newer models, this might be located under [29 – Left Light].
- Access Basic Settings: Within the Xenon Range controller, select [Basic Settings – 04].
- Go to Group 001: Select Group 001 and click [Go!].
Allowing for Adjustment and Manual Alignment
- Wait for Motor Adjustment: Allow at least 20 seconds for the headlight motors to complete their movement to the center adjustment position.
- Turn on Headlights: Switch on your headlights.
- Manual Adjustment: Using the manual adjusting screws on the headlights, align the beams against a suitable aiming target. Refer to your vehicle’s factory repair manual for specific aiming instructions.
Completing the Procedure
- Confirm Adjustment (Group 002): Navigate to Group 002 in Basic Settings. This confirms the Xenon Range controller has learned the new position as its home position.
- Exit: Click [Done, Go Back] to complete the procedure.
Troubleshooting
If you encounter an error message in Basic Settings Group 001 or 002, particularly in lowered vehicles, the vehicle height sensor might be bottomed out. This may require adjusting the sensor bracket to allow for proper operation. Additionally, verify that the sensor arm pivots are facing the correct direction. Consult online forums or your vehicle’s repair manual for detailed guidance on sensor adjustment. Completing this procedure correctly will clear any “Headlights not adjusted” DTCs stored in the Xenon Range memory. Remember to consult your vehicle’s factory repair manual for detailed specifications and procedures. Always exercise caution when working with vehicle electronics.
