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Lighting Systems - Overview - E38, E39 & E53: Adjustments BMW 5 series E39 facelift

Exterior Lights 1 illustration

Headlight Adjustment Stepper Motors

One stepper motor is located inside each headlight assembly. The 4 wire stepper motors are controlled by the LWR control electronics to change the vertical headlight position.

Scheme 86

Scheme 86: Headlight Adjustment Stepper Motors

Headlight Alignment

The procedure for aligning Xenon Headlights with LWR is the same as conventional halogen bulb systems with one additional step. Wait at least 30 seconds for the LWR to cycle and adjust to it's calculated position.