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Home >> BMW >> 2011 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Seats - Repair - E90) >> Front Seat, Normal, Manual >> 52 13 400 Replacing seat cover on left or right front seat (normal/manual)

52 13 400 Replacing seat cover on left or right front seat (normal/manual)

WARNING: This page is about a different variant/trim than selected.

Special tools required: 

Necessary preliminary tasks 

US/CDN front passenger seat (with OC3 mat) only: 

WARNING: When replacing seat cover:
If seat cover is defective, seat cover and padding with OC3 mat must be replaced together.
New seat cover is supplied with padding, OC3 mat and if necessary seat heating.
When replacing padding or OC3 mat: 
If OC3 mat or padding is defective, both parts must be replaced together.
These must be fitted with the seat cover from the car.
IMPORTANT: The OC3 mat must be enabled after each installation operation.

Enabling seat occupancy detector (OC3 mat): 

WARNING: US/CDN front passenger seat (with OC3 mat) only:
To avoid damaging the OC3 mat, it is essential to carry out the following operations with extra care.

Only when replacing OC3 mat with padding: 

OC3 mat (1) is secured on the left and right sides in the marked area with a longitudinal trim wire for transportation.

Carefully remove adhesive tape (2).

Fig 1: Removing Adhesive Tape
G09839671Courtesy of BMW OF NORTH AMERICA, INC.

Removing transportation lock: 

Carefully release retainers in marked area on left and right from longitudinal trim wires (1).

IMPORTANT: Remove all remainders of retainers from padding and OC3 mat.
Fig 2: Identifying Longitudinal Trim Wires
G09839672Courtesy of BMW OF NORTH AMERICA, INC.

Version with seat heating and/or with seat occupancy detector (OC3 mat) only: 

Unfasten plug connection (1) and disconnect.

Unclip seat heating cable (2).

Disengage seat heating cable (2) from cable holders (3).

Disconnect plug connection for seat occupancy detector (4).

IMPORTANT: Risk of damage to sharp-edged seat frame. Guide cable carefully through seat and backrest mechanism.
Fig 3: Identifying Cable Holders, Seat Heating Cable, Seat Occupancy Detector
G09839673Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

  1. Catch, old version
  2. Catch, new version
IMPORTANT: Make sure plug connections (1) are correctly locked.
Make sure plugs (1) are correctly seated in catches (2).
Fig 4: Identifying Sure Plugs And Catches
G09839674Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Remove trim (2) from inside of seat.

Fig 5: Removing Trim From Seat
G09839675Courtesy of BMW OF NORTH AMERICA, INC.

Lever clip (1) out of seat cover on left and right.

Installation: 

If necessary, replace faulty clip.

Fig 6: Identifying Seat Cover Lever Clip
G09839676Courtesy of BMW OF NORTH AMERICA, INC.

Detach seat cover (1) from seat frame.

Fig 7: Disconnecting Seat Cover From Seat Frame
G09839677Courtesy of BMW OF NORTH AMERICA, INC.

Pull out cover welt (1) completely from seat frame (2).

Fig 8: Pulling Out Cover Welt Completely From Seat Frame
G09839678Courtesy of BMW OF NORTH AMERICA, INC.

Remove seat cover (1) with padding towards front/top.

IMPORTANT: Carefully slide bracing cloth with foam through backrest gap and seat structure.
Fig 9: Removing Seat Cover With Padding Towards Front/Top
G09839679Courtesy of BMW OF NORTH AMERICA, INC.

Version with seat heater and/or with seat occupancy detector (OC3 mat): 

Release the corresponding plug connections depending on the version and disconnect.

Pull seat cover (1) with padding forward a little and feed cable (2) out.

Remove seat cover (1) with padding towards front/top.

Fig 10: Identifying Seat Cover And Wiring Harness
G09839680Courtesy of BMW OF NORTH AMERICA, INC.

Carefully detach all retainers in side area from longitudinal wires (1).

Pull trim wires (1) forward out of seat cover.

Carefully fold back seat cover and release retainers from cross-wires (2).

Remove seat cover from padding.

IMPORTANT: Remove remainders of retainers from padding and OC3 mat.
Fig 11: Identifying Trim And Cross-Wires
G09839681Courtesy of BMW OF NORTH AMERICA, INC.

Replacement only: 

If necessary, cut new seat cover to size and insert trim wires.

Fig 12: Identifying Trim Wires
G09839682Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Bend new clips (2) with special tool 52 0 050 .

  1. Padding
  2. Retainer
  3. Trim wire in padding
  4. Trim wire in cover
  5. Seat cover
    Fig 13: Bending Clips Using Special Tool 52 0 050
    G09839683Courtesy of BMW OF NORTH AMERICA, INC.
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