51 33... Slightly loosen power window regulator to remove door lock in left or right front door

WARNING: This page is about a different variant/trim than selected.

NOTE: To remove door lock, move rear section of sound insulation (1) toward center.

Necessary preliminary tasks:

Fig 1: Identifying Sound Insulation

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Raise side window glass to dimension (A).

Dimension (A) is the distance between the window cavity cover strip and upper edge of the side window glass.

For E90/E91:

Measurement (A) = 310 mm

E87:

Measurement (A) = 225 mm

Fig 2: Identifying Side Window Glass Dimension

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Fig 3: Inserting Side Window Glass Using Special Tool (51 3 190)

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Insert special tool 51 3 190 into designated opening (1) of side window glass (2)

Unlock side window glass (2) from rear part of power window regulator (3) in direction of arrow.

NOTE: Avoid damaging the paint finish. (Risk of corrosion)

Unscrew nuts (1).

Remove rear part of power window regulator (2) and place down on door floor.

Tightening torque: 51 33 1AZ

Fig 4: Identifying Power Window Regulator And Nuts

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