52 14... Additional Work In Event Of Faulty Drive/Gearing For Longitudinal Adjustment

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 135i, and 2010 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Release screws (1) of rockers for seat height adjustment.

Installation:

Carefully bend side section back and feed rocker out of top rail.

Tilt front seat back.

Fig 1: Identifying Screws Of Rockers For Seat Height

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Unfasten plug connection (1) and disconnect.

Fig 2: Identifying Plug Connection

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Unclip central connector (2) from seat mechanism.

Unclip control units (1) . Refer to 61 35 080 REMOVING AND INSTALLING/REPLACING CONTROL UNIT/MODULE FOR LEFT OR RIGHT SEAT ADJUSTMENT and/or 61 35 095 REMOVING AND INSTALLING/REPLACING CONTROL UNIT/MODULE FOR SEAT HEATING .

Fig 3: Identifying Central Connector From Seat Mechanism

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Unfasten plug connection (1) and disconnect.

Fig 4: Identifying Plug Connection

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Bend metal tab (1) open.

Fig 5: Identifying Bend 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 (3) from drive (1).

Fig 6: Detaching Drive From Rubber Mounts

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Release screws (1) at front.

Fig 7: Identifying Release Screws

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Installation:

Install new drive for longitudinal seat adjustment.

Move front seat forwards.

Release screws (1) at rear.

IMPORTANT: Cover door sill with protective covers (risk of damage).

Lift out front seat and assemble.

Fig 8: Identifying Front Seat & Screws

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Installation:

Make sure flex shaft is correctly fitted on drive
Carpet must not get between seat rails and floor pan in area of fastening points (grating noises)
Powerlok screws must be replaced and must not be reused
Powerlok screws are mechanical screw locks with trilobular threads
Insert all screws loose to avoid twisting
Tighten down all screws to specified torque
Tightening torque, see 52 10 1AZ in 52 10 FRONT SEATS .