67 31 540 Removing and Installing/Replacing Drive Unit For Head Restraint Adjustment (Comfort Seat)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove front seat.
Remove both rear panels on front seat backrest.

Pull backrest cover (1) in direction of arrow over metal lugs (2) and detach.

If necessary, detach backrest cover (1) on both sides from backrest frame.

Fig 1: Pulling Backrest Cover

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NOTE: For purposes of clarity, illustration shows backrest cover removed.

Release screw connections (1) on AKS carrier.

Fig 2: Identifying Screw Connections On AKS Carrier

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Move AKS carrier (1) in direction of arrow.

Unhook backrest cover (2) on backrest frame (3).

Fig 3: Unhooking Backrest Cover On Backrest Frame

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Pull drive shaft (1) in direction of arrow out of drive shaft receptacle (2).

Installation:

Make sure drive shaft (1) is correctly seated in receptacle (2).

Disconnect plug connection (3).

Remove circlip (4).

Feed out drive unit for backrest head adjustment (5) and remove.

Fig 4: Pulling Drive Shaft

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Removal and installation only:

Do not turn spindle (1) in order not to change measurement A.

Replacement only:

Adopt measurement A of removed drive unit for backrest head adjustment (2). If necessary, adjust measurement A by turning spindle (1).

Fig 5: Identifying Drive Unit Measurement

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Replacement:

Initialize drive unit for backrest head adjustment.