52 13 405 Replacing Back-Rest Cover For Left Or Right Front Seat (Normal / Manual)

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Remove rear panel on front seat backrest, refer to 52 13 198 REMOVING AND INSTALLING / REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL/MANUAL) .

Detach backrest cover (1) from backrest frame (2).

Fig 1: Removing Backrest Cover From Backrest Frame

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Version with seat heating only: expose seat heating cable:

Remove outer cover on front seat:

Manual operation, refer to 52 13 040 REMOVING AND INSTALLING / REPLACING OUTER COVER ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL / MANUAL) .

Electrical operation, refer to 52 16 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC) .

Unfasten plug connection (1).

Pull cable (2) out of holder (3).

Fig 2: Pulling Cable Out Of Holder

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Model with seat heating only:

Pull out tongue (1).

Fig 3: Pulling Out Tongue

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Pull cable (2) out of holder (3).

Model with seat heating only:

Lift out Omega clip (1).

Fig 4: Disconnecting Plug Connections

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Pull out cable (2) from Omega clip (1).

Model with lumbar supports:

If necessary, disconnect plug connections (3) and (4).

Lift out Omega clip (1).

Removal/replacement of backrest frame only:

Detach cover (1) on left/right.

Fig 5: Detaching Backrest Frame

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CAUTION: Do not under any circumstances turn screw underneath screw (2), this would destroy the seat frame.

Loosen left/right screw (2).

Detach backrest frame (3) with backrest cover upwards.

Installation:

Replace screws (microencapsulated).
Tightening Torque, 32 Nm except convertible, 24 + 4 Nm.

NOTE: The operation "Removing complete backrest" ends here.

Removal of backrest cover with padding/replacement of backrest frame only:

Remove both guides for front head restraint, refer to 52 13... REMOVING AND INSTALLING/REPLACING GUIDE FOR FRONT LEFT OR RIGHT HEAD RESTRAINT .

Version with lumbar support only:

NOTE: If necessary, gently heat air hose when firmly seated.
Valve housing must not be unclipped, leakage.
If the valve housing is unclipped, release screw and clip valve housing together.

Disconnect hoses (2) and (3) from valve housing (1).

Fig 6: Disconnecting Hoses From Valve Housing