52 14 407 Replacing backrest cover for driver's seat (normal/electric)

Special tools required: 

• 00 9 317
• 52 0 050

Necessary preliminary tasks: 

• Remove DRIVER'S SEAT .
• Remove REAR PANEL  on front seat backrest

Optional equipment with seat heating only: 

Unfasten plug connection (1) and disconnect.

Fig 1: Identifying Driver Seat Backrest Plug Connection

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Unfasten plug connection (1) and disconnect.

Fig 2: Identifying Front Seat Backrest Plug Connection

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Only with air conditioning optional equipment: 

Open Velcro fasteners (1).

Fig 3: Identifying Front Seat Velcro Fasteners

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Unlock and disconnect plug connections (1) for fan.

Fig 4: Identifying Fan Plug Connections

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Disengage backrest cover in lower area from attachment points.

Fig 5: Disengaging Backrest Cover (Lower Area)

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Disengage backrest cover in upper area from attachment points.

Fig 6: Disengaging Backrest Cover (Upper Area)

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With rear passenger compartment monitor optional equipment only: 

Remove REAR PASSENGER COMPARTMENT MONITOR .

Release tackers in marked area from carrier plate (1).

Remove clamps (2) at top left and right.

Replacement only: 

New backrest cover must be cut to size.

Slide cutting base under cover.

Place template on leather edge.

Mark outline and cut out.

Fig 7: Identifying Carrier Plate Marked Area And Clamps

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Installation note: 

Mount head restraint to pretension backrest cover.

The seam of the backrest cover must not be wavy and must be flush with the backrest frame upper edge.

Align backrest cover centrally.

Tack backrest cover with pneumatic tacker front inside outwards to carrier plate (1).

7 tackers on carrier plate at top.

4 tackers on left and right in side area.

52 0 050 Bend new clamps closed with pliers.

Backrest cover must not show any folds.

Disengage cover welt from cover securing strip.

1. Raise cover welt from cover securing strip.
2. Pull cover welt upwards and feed out of cover securing strip.
   Fig 8: Disengaging Seat Cover Welt

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Pull out backrest cover at bottom between backrest frame and seat mechanism.

Disengage backrest cover sideways.

Detach backrest cover with padding upwards from backrest frame.

Installation note: 

Padding must be cleanly inserted between backrest frame and seat mechanism.

Fig 9: Detaching Backrest Cover

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Release all clamps in marked area.

Remove backrest cover from upholstery.

Fig 10: Identifying Backrest Cover Clips

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Installation note: 

Clamp positions are marked in upholstery.

Bend new clamp (2) 52 0 050 closed with pliers.

1. Upholstery
2. Clamp
3. Trim wire in upholstery
4. Trim wire in backrest cover
5. Backrest cover
   Fig 11: Bending Backrest Cover Clamp

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Replacement only 

Pull trim wires out of backrest cover.

Installation note: 

Slide trim wires into new backrest cover.

If necessary, cut locators for trim wires in new part.

Fig 12: Identifying Backrest Cover Trim Wires

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Lever out locking strip of head restraint guide with special tool 1 00 9 317 .

Fig 13: Identifying Head Restraint Guide Locking Strip

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