63 12... US version: Check/replace the horizontal blocking sets for the headlights (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)

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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.)

Desired state: 

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

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Result: 

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

Measure: 

Install headlight

After installation, check the vertical  headlight adjustment and correct if necessary.

Result: 

No plug is installed in the adjustment screw (1) for horizontal adjustment (schematic illustration)

Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

Measure: 

Mark the position the adjustment screw for horizontal adjustment to identify possible shifting of the adjustment screw after installation of the horizontal blocking (schematic illustration).

Courtesy of BMW OF NORTH AMERICA, INC.

Push the headlight-specific plug (1) without damaging it  into the adjustment screw (2) (schematic illustration).

Install headlight

After installation, check the vertical  headlight adjustment and correct if necessary.