Adjusting/replacing bump stops (M4 Coupe, M4 Convertible)

The illustrations are schematic representations and are to be applied to the relevant vehicle type.

Prerequisite: Lid must be correctly adjusted.

Version 1:

Following parts must not be damaged:

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Adjust stop pad (1) to correct height by turning left or right.

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Version 2:

Replace damaged stop pads:

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Adjusting version 2:

Stop (1) 45° counter-clockwise.

Pull stop pad (2) upwards.

Close lid slowly until it is at the same height as the side wall.

Open flap and turn stop (1) clockwise.

Installation note:

Press stop pad into panel and drive in expanding pins (3).

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Version 3:

Lever out expanding rivets (1).

Remove stop pad (2).

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Adjusting version 3:

Checking correct adjustment:

Insert a strip of paper (normal writing paper) between stop pad and stop on body.
Close flap. Make sure that the paper strip remains between stop pad and stop.
The stop pad is correctly adjusted when the paper strip can be pulled out "with slight resistance".

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Adjustment procedures:

Screw in stop pad until the paper strip can be easily pulled out.

Then unscrew stop pad until the paper strip cannot be pulled out any more.

Screw in stop pad until the paper strip can be pulled out with "slight" resistance.

Version 4:

Lever out expanding rivets (1).

Remove stop pad (2).

Adjusting version 4:

Set stop pad to the correct height by turning to the left or right.

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Version 5:

Release screws (1) and remove stop pad (2).

Adjusting version 5:

Set stop pad to the correct height by turning to the left or right.

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