52 25 015 Removing and installing/replacing backrest for left or right rear seat

Necessary preliminary tasks:

Remove rear HEAD RESTRAINT
Remove left or right REAR SEAT
Move backrest completely forwards

Installation:

Microencapsulated screws and nuts (Loctite) must be replaced and may not be reused
Screw connection must be completed within 20 minutes (start of curing)
Microencapsulated screws/nuts must not be retightened
Clean thread of nut beforehand in event of repeated use

NOTE: For purposes of clarity the following operations are shown in the released state.

Detach cover (1) from Velcro-type fastener.

Pull cover (1) upwards out of guide from four-bar lever.

Fig 1: Pulling Cover Upwards Out Of Guide From Four-Bar Lever

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Installation:

Make sure cover guide is correctly seated on four-bar lever.

Fig 2: Checking Cover Guide Installation Position On Four-Bar Lever

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Unscrew nuts (1).

Installation:

Replace nuts (1).

Tightening torque 52 25 04AZ .

Fig 3: Identifying Rear Seat Backrest Nuts

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Release screw (1).

Installation:

Replace screw (1).

Tightening torque 52 25 05AZ .

Fig 4: Identifying Rear Seat Backrest Screw

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Unscrew nuts (1).

Installation:

Replace nuts (1).

Tightening torque 52 25 05AZ .

Fig 5: Identifying Rear Seat Backrest Nuts

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Installation sequence:

Fig 6: Rear Seat Nuts And Screws Tightening/Loosening Sequence

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Tighten nut (1) handtight
Tighten nut (2) handtight
Tighten down screws and nuts (3 to 11)

IMPORTANT: Observe tightening sequence without fail.
Observe tightening torques. See above.

Raise complete rear seat and set forwards slightly.

Unlock plug connections (1) and disconnect.

Remove rear seat.

Fig 7: Identifying Rear Seat Plug Connections

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