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Home >> BMW >> 2013 >> Z4 28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1339 (Seats - Repair -- Z4_E89) >> Front Seat - Normal >> 52 13 400 Replacing seat cover on left or right front seat (Normal)

52 13 400 Replacing seat cover on left or right front seat (Normal)

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

Necessary preliminary tasks: 

WARNING: US/CDN front passenger seat (with CIS mat) only: 
If CIS mat or padding is defective, both parts must be replaced together.
Full functional capability can only be guaranteed with original BMW spare parts.
WARNING: US/CDN front passenger seat (with CIS mat) only: 
To avoid damaging the CIS mat, it is essential to carry out the following operations with extra care.
IMPORTANT: Risk of damage on sharp-edged seat mechanism.
Guide all cables carefully through seat and backrest mechanism.
Make sure cable is routed without kinks and tension.
Make sure plug connections are correctly locked.
Make sure connectors are correctly seated in latch mechanisms.

Version with seat occupancy detection (CIS mat) only: 

  1. Data line CIS
  2. Earth cable, seat pan
  3. Earth cable, backrest frame

Unlock all plug connections and disconnect.

NOTE: From version 09/2009 onward, ground cable (3) not included on backrest frame.
Fig 1: Identifying Data Line CIS And Earth Cables
G06895478Courtesy of BMW OF NORTH AMERICA, INC.

Version with seat heating only: 

Unlock plug connection (1) for seat heating and disconnect.

Unfasten cable strap.

Disengage wiring harness from cable clips (flexmat).

Fig 2: Identifying Seat Heating Plug Connection
G06911095Courtesy of BMW OF NORTH AMERICA, INC.

Version with seat occupancy detector without seat heating (CIS mat) only: 

Seat heating is integrated in the CIS mat and is stuck to the upholstery over the full surface.

Lay cable for seat heating as shown to flexmat and secure with cable strap.

Secure connector with cable strap to cable.

Fig 3: Locating Plug With Cable Strap
G06911096Courtesy of BMW OF NORTH AMERICA, INC.

Vehicle exterior: 

Lever clamp (1) out of seat cover.

Installation note:

If necessary, replace faulty clip.

Fig 4: Identifying Seat Cover Clip
G09839676Courtesy of BMW OF NORTH AMERICA, INC.

Tunnel side: 

Disengage cover fastener (1) from belt deflector trim.

Fig 5: Identifying Cover Fastener Of Belt Deflector Trim
G06911098Courtesy of BMW OF NORTH AMERICA, INC.

Detach seat cover (1) from seat frame.

Fig 6: Removing Seat Cover From Seat Frame
G09851318Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 7: Pulling Cover Welt From Seat Frame
G04727072Courtesy 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.

Installation note: 

Slide foam completely through backrest gap and seat structure. Make sure foam and bracing cloth are correctly fitted.

Fig 8: Removing Seat Cover With Padding
G06911101Courtesy of BMW OF NORTH AMERICA, INC.

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

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

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

Fig 9: Identifying Seat Cover And Wiring Harnesses
G06911094Courtesy of BMW OF NORTH AMERICA, INC.

Carefully detach all retainers in side area from OKE strips (1).

Carefully turn seat cover over and release clamps from OKE strips (2).

Remove seat cover from upholstery.

IMPORTANT: Remove all remnants of clips from seat cover and upholstery (CIS mat).
Fig 10: Identifying OKE Strips
G09851322Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

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

  1. Upholstery
  2. Clamp
  3. Trim wire in upholstery
  4. OKE strip in cover
  5. Seat cover
Fig 11: Bending Clamps With Special Tool (52 0 050)
G09851324Courtesy of BMW OF NORTH AMERICA, INC.