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Adjusting/replacing bump stops (M4 2021-2023)

The illustrations show a schematic diagram that must be transfered to the respective vehicle type.

Version 1:

Following parts must not be damaged:

  1. Bump stop
G15334458Courtesy of BMW OF NORTH AMERICA, INC.

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

G15334459Courtesy of BMW OF NORTH AMERICA, INC.

Version 2: 

Replace damaged stop pad (see applicable BMW parts catalogue):

  1. Stop pad with ejector
G15334460Courtesy of BMW OF NORTH AMERICA, INC.

Press the ejector (1) into the stop pad and turn it in this position approx. 90° to the left with a Phillips screwdriver.

The ejectors (1) are thus locked into the stop pads.

Adjust stop pad (2) to correct height by turning left or right.

Unlock the ejector (1) again after setting has occurred.

G15334461Courtesy of BMW OF NORTH AMERICA, INC.

Version 3: 

Replace damaged stop pad (see applicable BMW parts catalogue):

  1. Bump stop
G15334462Courtesy of BMW OF NORTH AMERICA, INC.

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 the stop pad into the sheet metal part and knock in the expanding pins (3).

G15334463Courtesy of BMW OF NORTH AMERICA, INC.

Screw in stop pads (1) fully until the pin (2) can be pulled out.

Slowly pull the pin (2) out approx. 5 mm.

Slowly close the hood. The pin (2) is pushed into the stop pad (1) in this process.

Raise hood.

Unscrew stop pad (1) until stop pad is flush with upper edge of pin (2).

G15334464Courtesy of BMW OF NORTH AMERICA, INC.