51 33 000 Removing and installing (replacing) electric window lift in left or right front door

Necessary preliminary tasks:

Loosen screws (1).

Slacken screw (2) and remove retaining clip (3).

Tightening torque: see 2AZ in 51 33 POWER WINDOWS, FRONT .

Fig 1: Removing Retaining Clip

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Installation:

Make sure guide (1) is correctly seated when fitting retaining clip (2).

Fig 2: Fitting Retaining Clip

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Release cable tie (1).

Disconnect plug connection on drive (2).

Release screws on power window unit above bores (3).

Tightening torque: see 2AZ in 51 33 POWER WINDOWS, FRONT .

Fig 3: Disconnecting Plug Connection On Drive

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Removal of power window:

Fig 4: Removing Front Window Lift Rail

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Replacement:

Release screws (1) and detach flat motor (2).

Tightening torque: see 1AZ in 51 33 POWER WINDOWS, FRONT .

Fig 5: Removing Screws And Detach Flat Motor

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NOTE:

To activate the anti-trapping mechanism, a normalization must be carried out after the power window unit has been installed.

Operating sequence for normalization:

Open corresponding window completely.
Press corresponding power window switch into "Close one touch operation" (second switch stage).
Once the upper end position has been reached, hold power window switch down for approx. 500 secs. more.
Carry out function check (one-touch function, anti-trapping protection and, if necessary, comfort function).