72 11 030 Removing and Installing/Replacing Front Seat Belt (US Version Only)

72 11 030 Removing and installing/replacing front seat belt (US version only)







IMPORTANT:
Read and comply with safety instructions for handling airbag modules and pyrotechnical belt tensioners.
Inexpert handling can trigger off the airbag or the belt pretensioner and thereby cause injuries.
If a seat belt which is damaged due to an accident is exchanged, always check the affected seat for damage.







Necessary preliminary tasks:
- Remove front seat
- Remove and install rear panel on front seat
- Remove trim cover for outer fitting
- Remove inner cover on front seat
- Partially detach seat cover
- Partially detach backrest cover







IMPORTANT:
Do not detach coupling gear from flex shaft.
If a new belt system is fitted, always use a new coupling gear.
If a new coupling gear is fitted, always replace the top belt.







Remove inertia reel with flex shaft and coupling gear:
Release screw.

Installation note:
Replace microencapsulated screw.

Tightening torque 72 11 02AZ.
Remove end fitting.







Installation note:
Plastic washer on end fitting must be fitted.
End fitting is encoded to prevent incorrect assembly.







Unclip all cables from guides.
Release screw (1).
Tightening torque: 72 11 09AZ.
Release stud (2).
Tightening torque: 72 11 08AZ.







NOTE:
Replace driver (1) after removal with a new component as damage cannot be excluded.
When removing driver (1), ensure guide (3) and lever (2) of coupling gear are not damaged.
Remove driver (1) from backrest shaft.







Installation note:
Do not fit new driver (1) on backrest shaft yet.
Backrest must be in as vertical a position as possible.
Driver (1) and lug are positioned at an angle towards top in direction of travel (arrow).







Installation note:
Feed driver (1) into slot (3) in lever (2) of the coupling gear.
Align lever (2) on coupling gear so that slot (3) is correctly positioned with respect to driver (1).







Installation note:
Pin on coupling gear must reach into hole in seat.







Installation note:
Make sure groove and pin are correctly positioned.
Clip flexible shaft (1) into place with coupling gear (2).
Ensure complete engagement by pulling gently on flex shaft.
Flexible shaft must not clip out here.







Unclip flexible shaft (3) from cable strap (2).
Unclip cable strap (1) from backrest.







NOTE:
Inertia reels with tensioners will be used from 08/10.
In the case of inertia reel with tensioner, unlock and disconnect the plug connection.

Release nut and remove inertia reel with flex shaft and coupling gear.
Replace nut.
Tightening torque 72 11 01AZ.

Installation note:
Inertia reel is coded to prevent incorrect installation.







Removing belt guide, version up to 09/08:
Unclip cover (1) with plastic wedge.







Release screw (1).
Tightening torque 72 11 03AZ.
Remove seat belt guide.







Removing belt guide, version from 09/08 on:

NOTE:
Protect belt guide against damage (scratches).
Front and rear cover of belt guide (1) are destroyed during removal.

Installation note:
Pay particular attention to the separation point between the two covers.
If the covers are not clipped in correctly, there is a grinding noise when the belt runs.







Release screw from belt guide.
Tightening torque 72 11 03AZ.







Release further screw from belt guide and pull belt guide off.
Remove entire seat belt with belt guide, inertia reel with flex shaft and coupling gear.
Do not bend the flex shaft and do not transport the inertia reel by the flex shaft.

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