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

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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 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: Lifting Drive And Flex Shaft Out Of Guide

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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.