52 15 455 Replacing Heating Elements For Left Or Right Front Seat (Sport/Manual)

Necessary preliminary tasks: 

• Remove seat fabric  . Refer to 52 16 400 Replacing Seat Cover For Left Or Right Front Seat (Sports/Electric) .
• Remove backrest cover  . Refer to 52 16 405 Replacing Backrest Cover On Front Left Or Right Seat (Sports/Electric) .
• Remove thigh support cover  . Refer to 52 15 403 Removing And Installing/Replacing Thigh Support Cover On Front Seat (Sport/Manual) .

Check new foam section: 

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

Check new heating mat: 

• No obvious damage or material defects
• All tear-off film pieces presents
• 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 edges.
• Press down evenly in outwards direction
  Fig 1: Identifying Main Section & Bead Section

  Courtesy of BMW OF NORTH AMERICA, INC.

Guide cable for seat heating through foam hole.

Stick on STV heating mat (1): 

• Pull off adhesive film and stick to rear foam edge until flush

Stick on bead section (2): 

• Pull adhesive film pieces off bead section (2) and stick on heating mat along bead section edges.
• Press down evenly in outwards direction

Stick on main section (3): 

• Pull adhesive film pieces off main section (3) and stick to upper edge of main section foam until flush
  Fig 2: Identifying STV Heating Mat

  Courtesy of BMW OF NORTH AMERICA, INC.

Check laying of heating mats: 

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