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HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSEATSSEATS - REPAIR (E88)FRONT SEAT, NORMAL, ELECTRIC52 14... ADDITIONAL WORK IN EVENT OF FAULTY DRIVE/GEARING FOR LONGITUDINAL ADJUSTMENT
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans

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

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 52 14... Additional Work In Event Of Faulty Drive/Gearing For Longitudinal Adjustment

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
G05779543Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Fig 2: Identifying Plug Connection
G05779544Courtesy of BMW OF NORTH AMERICA, INC.

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
G05779545Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Fig 4: Identifying Plug Connection
G05779546Courtesy of BMW OF NORTH AMERICA, INC.

Bend metal tab (1) open.

Fig 5: Identifying Bend Metal Tab
G05779547Courtesy of BMW OF NORTH AMERICA, INC.

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
G05779548Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) at front.

Fig 7: Identifying Release Screws
G05779549Courtesy of BMW OF NORTH AMERICA, INC.

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
G04727005Courtesy of BMW OF NORTH AMERICA, INC.

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 .

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.