US version: Remove the horizontal blocking before adjusting the headlight (M4 2021-2023)

Required Special Tools: 

• 23 0 490 

Check: 

Check the adjustment screw for horizontal adjustment for blockage (schematic illustration. If necessary, consult the vehicle specific service information on headlight adjustment for the exact positioning of the adjustment screws.)

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Desired state: 

The adjustment screw for horizontal adjustment must be blocked with a plug (1) (schematic illustration)

Result: 

The plug (1) is installed in the adjustment screw for horizontal adjustment (schematic illustration)

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The plug (1) shows damages/deformations on the ribs/borings  which point to possible manipulations of the headlight adjustment.

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Measure: 

Remove the blocking from the adjustment screw for horizontal adjustment.

To prevent damages to the vehicle, fix the impact weight (2) of the special tool 23 0 490  by applying adhesive tape (1) near the handle.

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Turn the special tools into the 23 0 490  plugs and remove the adjusting screw with a pulling motion (schematic illustration).

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Result: 

The plug (1) is installed in the adjusting screw for horizontal adjustment and show no damages/deformations  which point to possible manipulations of the headlight adjustment (schematic illustration).

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Measure: 

No check and/or adjustment of the horizontal adjustment is necessary.