Adjusting your Xenon headlights correctly is crucial for optimal visibility and road safety. This guide provides a step-by-step procedure for performing a headlight range adjustment using VCDS (Vag-Com Diagnostic System) on VW and Audi vehicles equipped with older Xenon systems utilizing KW-1281. This process sets the headlights to their center position, allowing for accurate manual adjustment. Remember, this procedure doesn’t align the headlamps automatically; you’ll still need to fine-tune them using the manual adjusting screws.
Before commencing with the Headlight Range Vcds adjustment, ensure your vehicle meets these prerequisites:
- Level Ground: Park the vehicle on a level surface, allowing the suspension to settle completely.
- Parking Brake: Disengage the parking brake.
- Ignition: Turn the ignition to the “On” position.
- Headlights: Ensure the headlights are switched “Off.”
Now, follow these steps for Xenon headlight alignment using VCDS:
Accessing Xenon Range in VCDS
- Select Module: Connect your VCDS interface and select module 55 – Xenon Range. In some newer models, module 29 – Left Light may be used instead. Consult your vehicle’s specific documentation if unsure.
- Basic Settings: Navigate to Basic Settings – 04.
- Group 001: Select Group 001 and click [Go!].
Adjusting Headlight Position
- Wait for Adjustment: Allow at least 20 seconds for the headlight motors to complete their movement to the center adjustment position.
- Manual Adjustment: Turn on the headlights. Using a suitable aiming target and the manual adjusting screws on your headlights, fine-tune the beam alignment. This step requires precision to ensure proper headlight aim.
Saving the New Home Position
- Group 002: Scroll up to Group 002 in VCDS. This action signals the Xenon Range controller to learn the current position as the new Home position. This is crucial for maintaining correct headlight alignment.
- Completion: Click the [Done, Go Back] button. Your headlight range adjustment is now complete.
Troubleshooting Potential Issues
Lowered vehicles might display error messages in Basic Settings group 001 or 002. This often indicates that the vehicle height sensor(s) are bottomed out. In such cases, adjusting the sensor bracket might be necessary. Ensure the sensor arms are correctly oriented; an incorrectly positioned pivot can also trigger errors. Refer to online forums and resources for specific guidance on addressing height sensor issues related to headlight range vcds adjustments.
Successfully completing this procedure ensures optimal headlight performance and prevents potential DTCs (Diagnostic Trouble Codes) related to headlight adjustment. Remember always to consult your vehicle’s factory repair manual for detailed instructions and safety precautions before undertaking any maintenance procedures, including headlight range vcds adjustments.
