52 26 420 Replacing backrest cover for rear seat including through-loading system on left

Special tools required: 

• 52 0 050

Necessary preliminary tasks: 

• Remove REAR SEAT BACKREST , left
• Remove GUIDE SLEEVES 

Remove center rear seat backrest from support of left-hand backrest in direction of arrow.

Fig 1: Removing Center Rear Seat Backrest From Support Of Left-Hand Backrest

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Plastic bush (1) may slide when removing the center backrest.

Make sure plastic bush (1) is fitted correctly in the backrest frame.

The plastic bush (1) must be retained in the backrest frame with a lug.

If applicable, PARTIALLY REMOVE THE BACKREST COVER  and plastic bush (1) from the inside out.

Fig 2: Identifying Backrest Frame Plastic Bush

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Plastic bush (1) may slide when removing the center backrest.

Make sure plastic bush (1) is fitted correctly in the backrest frame.

The plastic bush (1) must be retained in the backrest frame with a lug.

If applicable, PARTIALLY REMOVE THE BACKREST COVER  and clip the plastic bush (1) in from the outside in.

Fig 3: Identifying Center Backrest Plastic Bush

Courtesy of BMW OF NORTH AMERICA, INC.

Depending on equipment specification: 

Ohne SA 413: Unclip cover (1) for combined roller cover mount.

Mit SA 413: Unclip trim cover for combined roller cover mount.

Fig 4: Identifying Cover For Combined Roller Cover Mount

Courtesy of BMW OF NORTH AMERICA, INC.

With option SA 413: 

Release screws (1).

Tightening torque 52 26 09AZ .

Remove mount for combined roller cover.

Fig 5: Identifying Combined Roller Cover Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Gently slide lock trim (1) on side edge of backrest downwards and unclip to one side.

Gently slide lock trim on rear side towards middle.

Unclip and remove lock trim.

Fig 6: Removing Lock Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Retaining lugs on trim must not be damaged.

If necessary, replace faulty trim.

Fig 7: Locating Retaining Lugs On Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Insert plastic wedge from outside between trim (1) and lock.

Carefully lever outer side of trim (1) with plastic wedge upwards out of catch.

Lever inner side of trim (1) with plastic wedge out of catch.

Remove trim upwards.

Fig 8: Inserting Plastic Wedge Between Cover And Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 52 26 06AZ .

Lift out trim.

Fig 9: Locating Trim Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Feed seat belt strap out of cover.

Fig 10: Folding Belt Strap Out Of Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 52 26 02AZ .

Remove outer mount (2).

Fig 11: Identifying Outer Mount With Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out welt in marked area from backrest frame.

Remove backrest cover with padding from backrest frame.

Fig 12: Removing Rear Panel From Backrest Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Detaching cover and upholstery: 

• Release all clamps in marked area
• Remove cover from upholstery
• Remove all remnants of retainers from cover and padding
  Fig 13: Identifying Clamps In Marked Area

  Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Insert new clamp (2) with special tool 52 0 050 and bend closed.

1. Upholstery
2. Clamp
3. Trim wire in upholstery
4. Trim wire in backrest cover
5. Backrest cover
   Fig 14: Inserting Clamp With Special Tool (52 0 050)

   Courtesy of BMW OF NORTH AMERICA, INC.

Replacing cover: 

• Pull all trim wires out of cover
• If necessary, cut pockets in new cover for trim wires
• Push trim wires into cover pockets
  Fig 15: Identifying Trim Wires Into Cover Pockets

  Courtesy of BMW OF NORTH AMERICA, INC.