65 77... Overhaul solution for OC3 mat

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove switch combination. See SWITCH COMBINATION (FULLY ELECTRIC FRONT SEAT) or SWITCH COMBINATION (SEMI-ELECTRIC FRONT SEAT) .

WARNING: To avoid damaging the OC3 mat, it is essential to carry out the following operations with extra care.

Do not kink OC3 mat.
Handle OC3 mat with extreme care.

NOTE: The following work steps of the overhaul solution for the OC3 mat relate to the entrance side from the front passenger seat.

Unclip cover (1) on front seat.

Fig 1: Identifying Front Seat Cover

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Sport seat version:

Release screws (1). If necessary, detach plug connections (2). Remove thigh support (3).

Fig 2: Identifying Plug Connections, Thigh Support And Screws

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Sport seat version:

NOTE: Operation shown on driver's seat by way of example.

Unhook seat cover (1) in marked area on exit side. Lever out clip (2).

Installation: If necessary, replace defective clips (2).

Fig 3: Identifying Seat Cover And Clips

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Detach seat cover (1) in marked area at all fastening points.

Fig 4: Identifying Seat Cover On At All Retaining Points

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IMPORTANT:

Padding must not be damaged. Fold back seat cover (1) at side. Carefully detach OC3 mat (2) from side section of padding. If necessary, cut off OC3 mat (2) with a heavy-duty scalpel without damaging the padding.

Fig 5: Fold Back Seat Cover At Side

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IMPORTANT:

Do not damage strip conductors of OC3 mat. Carefully cut off protruding material (1) of OC3 mat above contour (2).

Fig 6: Cut Off Protruding Material Of Mat

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Fold back OC3 mat (1). Stick double-sided adhesive tape (2) to padding (3). Pull protective film off double-side adhesive tape (2).

Fig 7: Stick Double Sided Tape To Padding

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Pulling gently, stick OC3 mat (1) to side section.

Fig 8: Stick OC3 Mat To Side Section

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Stick fleece (1) in area of OC3 mat to side section. Note: Stick fleece (1) to side section edge (2) so that it is flush. Assemble front seat.

Fig 9: Stick Fleece In Area Of OC3 Mat To Side Section

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Enabling seat occupancy detection (OC3 mat): Connect BMW diagnosis system. Release seat occupancy detector. Clear fault memory if necessary.