52 15 455 Replace heating elements for front seat (sport/manual) left or right

Necessary preliminary tasks 

• Remove SEAT COVER .
• Remove BACKREST COVER .
• Remove THIGH SUPPORT COVER .

Foam part and heating elements must be replaced.

Check new foam part: 

• No obvious damage or material defects
• All trim wires present in foam
• No bubbles in foam part
• No dirt contamination on foam or residual foam
• Pay attention to foam part on left and right

Check new heating mat: 

• No obvious damage or material defects
• All tear-off film pieces present
• Note variant by examining label on cable

Guide cable for backrest heating through foam hole.

Stick on main section (1): 

• Pull adhesive film pieces off main section (1) and stick to upper edge of main section foam until flush

Stick on bead section (2): 

• Pull adhesive film pieces off bead section (2) and stick on heating mat along bead section edge.
• Press down evenly in outwards direction
  Fig 1: Identifying Bead Section

  Courtesy of BMW OF NORTH AMERICA, INC.

Guide cable for seat heating through foam hole.

Bond the STV heating mat (1): 

• Pull off the adhesive film and bond flush with the rear foam edge

Stick on bead section (2): 

• Pull adhesive film pieces off bead section (2) and stick on heating mat along bead section edge.
• Press down evenly in outwards direction
  Fig 2: Identifying STV Heating Mat, Main And Bead Section

  Courtesy of BMW OF NORTH AMERICA, INC.

Stick on main section (3): 

• Pull adhesive film pieces off main section (3) and stick to upper edge of main section foam until flush

Check laying of heating mats: 

• Heating mats laid without folds
• Heating mats correctly positioned
• All bonding surfaces stuck on