67 31 501 Removing and installing/replacing drive unit for longitudinal seat adjustment

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT SEAT

Unfasten plug connection (1) and disconnect.

Fig 1: Identifying Front Seat Plug Connection

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Bend metal tab (1) open.

Fig 2: Identifying Metal Tab

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Lift drive (1) and flex shaft (2) out of guide (4) in direction of arrow.

Detach drive (1) from rubber mounts (3).

Detach flex shaft (2) from drive (1).

Fig 3: Detaching Drive From Rubber Mounts

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Fig 4: Identifying Short And Long Flex Shafts

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Installation:

Slide short flex shaft (1) into longitudinal seat adjustment gearing square.

Bend long flex shaft (2) upwards and slide into longitudinal seat adjustment gearing.

Clip motor and flex shafts into carrier plate.

Make sure flex shafts are correctly seated in gearboxes.