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.
Control module function (coding/programming): Coding: Calibration
Calibration must be performed in the level control system in all vehicles with level control
The headlight beam adjustment (HBA) Xenon control module is adapted to suit current conditions relating to position in the vehicle under the menu item "Calibration". The existing vehicle position is stored as 'zero position' during calibration.
Following calibration, the headlight setting must be checked and corrected if necessary.
Calibration must be performed if changes were made that can change the position of the angle sensors:
- Headlights, complete
- HBA (Xenon) control module
- HBA angle sensor (front and rear compression)
- Running gear components
- Damage caused by accidents
- When the coding is changed in the menu item "Modify coding", the ignition must always be switched off afterwards and the key removed.
- After the ignition is switched on again, the new coding of the control module is updated and the stored faults can be erased.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.