Operation CHARM: Car repair manuals for everyone.

Headlamp: Adjustments






Headlamps, aligning

Warning! Adjustment of the headlamp beam is dependent on the legal requirements of the relevant market. Select intended market.

Caution! Cars equipped with Bi-Xenon lamps or halogen lamps are adjusted in the same way. To ensure that the position sensor for the Bi-Xenon lamps is correctly calibrated calibrate as follows.
- Vehicles without Four-C see, VIDA, Car communication, function group 3, rear electronic module (REM), Calibrating the Bi-Xenon lamp position sensor
- Vehicles with Four-C see, VIDA, vehicle communication, function group 7, suspension module (SUM), calibrating the system.

Note! Select market:
- all markets except USA, United Kingdom and Japan
- USA
- United Kingdom
- Japan.

Adjusting, all markets except USA, United Kingdom and Japan

Warning! Always adjust the headlamp beam according to the legal requirements of the market.




- Ignition and low beam on
- Check the button that controls the lighting level. Set the button to the 0 position
- Check the current. Check that the power supply is sufficient for the desired beam level
Caution! Always adjust the beam with low beam switched on.








- Adjust the beam vertically (Y) using an Allen screw, as illustrated
- Adjust the beam horizontally (X) using an Allen screw, as illustrated
Hint: Use a -6 mm Allen screw.

Warning! Always adjust the headlamp beam according to the legal requirements of the market.

Adjustment, USA

Warning! Always adjust the headlamp beam according to the legal requirements of the market.




- Ignition and low beam on
- Check the current. Check that the power supply is sufficient for the desired beam level
- Remove the guard over the adjustment screw. Adjust the beam horizontally (X) by pulling the adjustment screw upwards
Caution! Always adjust the beam with low beam switched on.




- Adjust the beam vertically (Y) using an Allen screw, as illustrated
- Adjust the beam horizontally (X) using an Allen screw, as illustrated
Hint: Use a -6 mm Allen screw.

Warning! Always adjust the headlamp beam according to the legal requirements of the market.

Adjustment, United Kingdom

Warning! Always adjust the headlamp beam according to the legal requirements of the market.




- Ignition and low beam on
- Check the button that controls the lighting level. Set the button to the 0 position
- Check the current. Check that the power supply is sufficient for the desired beam level
Caution! Always adjust the beam with low beam switched on.








- Adjust the beam vertically (Y) using an Allen screw, as illustrated
- Adjust the beam horizontally (X) using an Allen screw, as illustrated
Hint: Use a -6 mm Allen screw.

Warning! Always adjust the headlamp beam according to the legal requirements of the market.

Adjustment, Japan

Warning! Always adjust the headlamp beam according to the legal requirements of the market.




- Ignition and low beam on
- Check the button that controls the lighting level. Set the button to the 0 position
- Check the current. Check that the power supply is sufficient for the desired beam level
Caution! Always adjust the beam with low beam switched on.








- Adjust the beam vertically (Y) using an Allen screw, as illustrated
- Adjust the beam horizontally (X) using an Allen screw, as illustrated
Hint: Use a -6 mm Allen screw.

Warning! Always adjust the headlamp beam according to the legal requirements of the market.