51 32 170 Removing and installing/replacing door window glass, front left or right

Special tools required: 

• 51 3 240 (window glass wrench)

Carry out work on power windows with de-energized power window motors only.

Necessary preliminary tasks: 

• Remove SOUND INSULATION  on front door
• Remove OUTER WEATHER STRIP 

Removal: 

Slacken multipoint head cap screws (1) on ring gear with special tool 51 3 240 (window glass wrench).

Fig 1: Slackening Multipoint Head Cap Screws On Ring Gear With Special Tool (51 3 240)

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Fig 2: Ring Gear And Torx Socket

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Open door window glass (1) to dimension (x) until multipoint head cap screws (2) are accessible.

Dimension x = approx. 150 mm

Disconnect plug connection (3) at power window motor (pinch hazard).

Fig 3: Checking Door Window Glass Opening Dimension

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Release multipoint head cap screws (2).

Raise holder (1) at tab (2) and remove door window glass (3) in upward direction.

Fig 4: Raising Holder At Tab

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Installation: 

Make sure door window glass (1) is correctly seated on holder (2) and window guide (3).

Fig 5: Door Window Glass, Holder And Window Guide

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Tighten multipoint head cap screws (2) by hand.

Connect plug connection (3) to power window motor.

Close door window glass (1).

Fig 6: Checking Door Window Glass Opening Dimension

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Tighten multipoint head cap screws (1) on ring gear with special tool 51 3 240 (window glass wrench).

Tightening torque 51 33 2AZ .

Fig 7: Slackening Multipoint Head Cap Screws On Ring Gear With Special Tool (51 3 240)

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Required reworking: 

• Adjust DOOR WINDOW GLASS .
• Carry out POWER WINDOW NORMALIZATION 
• Check function of power windows and anti-trap mechanism