52 14... Additional work in event of faulty drive/gearing for longitudinal adjustment

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Release screws (1) of swinging arms for seat height adjustment.

Installation note:

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

Tilt front seat back.

Fig 1: Rocker Screws

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Unfasten plug connection (1) and disconnect.

Fig 2: Plug Connection

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Unclamp central connector (2) from seat mechanism.

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

Fig 3: Control Unit And Central Connector

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Removal of electric motor for forward/back seat adjustment:

Unfasten plug connection (1) and disconnect.

Fig 4: Plug Connection And Electric Motor

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Lift long flex shaft (3) out of guide in direction of arrow.

Pull out flex shaft (3) from electric motor for forward/back seat adjustment (1).

Remove electric motor for forward/back seat adjustment (1) in direction of arrow from holder (2).

Fig 5: Removing Electric Motor For Forward/Back Seat Adjustment From Holder

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Release screws (1) at front.

Fig 6: Seat Screws

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Installation note:

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 7: Screws

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Installation note:

Make sure flex shaft is correctly fitted on drive
Carpet must not get between seat rails and floor panel in area of attachment points (squeaking 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: 52 10 1AZ .