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

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Necessary preliminary tasks:

Remove seat cover . See 52 15 402 REPLACING SEAT COVER FOR DRIVER'S SEAT (SPORT/MANUAL) or 52 15 404 REPLACING SEAT COVER FOR FRONT PASSENGER SEAT (SPORT/MANUAL) .
Remove backrest cover . See 52 15 407 REPLACING BACKREST COVER FOR DRIVER'S SEAT (SPORT/MANUAL) or 52 15 408 REPLACING BACKREST COVER FOR FRONT PASSENGER SEAT (SPORT/MANUAL) .
Remove THIGH SUPPORT COVER

NOTE: Heating elements are bonded with the foam part and cannot be separated from each other without causing damage.
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: Sticks On Main And 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.

Fig 2: Sticks On STV Heating Mat, Main And Bead Section
Courtesy of BMW OF NORTH AMERICA, INC.
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

Check laying of heating mats:

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

NOTE: Carry out FUNCTION CHECK