52 26 309 Removing and installing/replacing lock for left rear seat backrest (through-loading system)

Slide lock trim on edge of backrest side upwards slightly and clip out to one side, then slide trim section on rear side slightly to center, unclip and remove.

Fig 1: Sliding Lock Trim On Edge Of Backrest Side Upwards Slightly

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Installation:

Clips of trim must not be damaged.

Fig 2: Locating Clips Of Trim

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Partially lift cover (1) off rear seat backrest.

Fig 3: Removing Lift Cover

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E46 only:

Remove lockplate (1) and unhook actuating rod (2) for seatback release.

E83 only:

Lockplate (1) omitted. Unhook actuating rod (2) for seatback release.

Installation:

Fit bush (3) and new lockplate (1).

Perform function check with rear seat back-rest folded forward.

Fig 4: Removing Lockplate

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Release screws and fold back backrest lock.

Fig 5: Locating Backrest Lock

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Summary, backrest lock, left:

Actuating rod for backrest lock
Lower section, backrest lock, left
Bowden cable of safety belt
Backrest lock, left
Bush for mounting of actuating rod
backrest locking fixture

Fig 6: Actuating Rod, Bowden Cable And Backrest Lock

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Unhooking seat belt Bowden cable from backrest lock:

Press lever (1) forwards in direction of arrow.

Remove sleeve for Bowden cable (2) from holder (3) in backrest lock.

Unhook Bowden cable from lever (1).

Fig 7: Removing Sleeve For Bowden Cable From Holder

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Summary, backrest lock, left:

Actuating lever for backrest lock in left backrest lock
Hole for Bowden cable of safety belt
Retaining lug for Bowden cable on actuating lever for backrest lock
Bracket for Bowden cable of safety belt
Bowden cable sleeve
Bowden cable of safety belt

Fig 8: Actuating Lever And Bowden Cable

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