51 23... Adjusting/replacing bump stops: Overview

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

Version 1: 

Following parts must not be damaged:

• (1) Bump stop

Fig 1: Identifying Bump Stop

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

Fig 2: Adjusting Bump Stop

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Version 2: 

Replace damaged bump stops:

• (1) Bump stop with ejector

Fig 3: Identifying Bump Stop With Ejector

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Press ejector (1) into bump stop and, in this position, twist approx. 90° counterclockwise with a Phillips screwdriver.

This locks the ejectors (1) in the bump stops.

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

Unlock the ejector (1) again after completing adjustment.

Fig 4: Identifying Ejector And Bump Stop

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Version 3: 

Replace damaged bump stops:

• (1) Bump stop

Fig 5: Identifying Bump Stop

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Turn lock (1) 45° counterclockwise.

Pull bump stop (2) upwards.

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

Open lid and turn lock (1) clockwise.

Installation note: 

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

Fig 6: Turning Lock

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

Prerequisite: Lid must be correctly adjusted.

Following parts must not be damaged:

• (1) Bump stop
• (2) Catches

Remove adjusting buffer by pressing catches back.

Fig 1: Identifying Bump Stop And Catches

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Screw in adjusting buffer (1) to create clearance to engine compartment lid.

Place a cone (2) of modeling or sealing compound on adjusting buffer.

Slowly close engine compartment lid.

Fig 2: Identifying Adjusting Buffer And Cone

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Raise engine compartment lid.

Compressed cone (1) determines clearance between adjusting buffer and engine compartment lid.

Fig 3: Identifying Cone

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Measure dimension a between compressed cone and edge (1) of adjusting buffer.

Fig 4: Identifying Cone And Edge Dimension

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Adjust measured dimension a + 0.5 mm by unscrewing adjusting buffer (1).

Fig 5: Identifying Adjusting Buffer Dimension

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