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Home >> BMW >> 2000 >> 740iL >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> SLIDE/TILT ROOF - REPAIR INSTRUCTIONS - 740i & 740iL - E38 >> Mechanical Sun Roof Components >> 54 12 220 Replacing control rail for glass sliding/tilting sunroof, left or right >> Notes

54 12 220 Replacing control rail for glass sliding/tilting sunroof, left or right: Notes

NOTE: When replacing a control rail, always check the second control rail for wear; if necessary, replace as a pair. If necessary, apply light coat of Renax GL1 (Fuchs) grease to guide duct.

Removing and installing bellows for glass sliding/tilting sunroof, left and right, see 54 12 015 REPLACING BELLOWS FOR GLASS SLIDING/TILTING SUNROOF, LEFT OR RIGHT 

Removing and installing wind deflector, see 54 12 496 REMOVING AND INSTALLING / REPLACING WIND DEFLECTOR 

Removing and installing water channel for glass sliding/tilting sunroof, see 54 12 138 REMOVING AND INSTALLING / REPLACING WATER CHANNEL FOR GLASS SLIDING/TILTING SUNROOF 

Release screws and remove tube clamp (1).

NOTE: When replacing the right control rail, disassemble the left tube clamp as well.
Fig 1: Removing Tube Clamp
G03227303

Secure tube clamp (1) with screw (2).

Fig 2: Removing Tube Clamp With Screw
G03227304

Slide support (1) (for glass sunroof lid, front) forwards/inwards out of guide duct.

Fig 3: Sliding Support
G03227305

Slide support (1) for bellows forwards out of guide duct.

Fig 4: Sliding Support For Bellows Forwards Out Of Guide Duct
G03227306

Only when the right control rail is replaced: Move mechanism completely towards rear.

Continue to move mechanism with emergency actuation towards rear until the left drive cable (1) comes completely forwards out of the guide duct.

Continue to move mechanism forwards and in so doing feed drive cable (1) out of left guide duct.

Fig 5: Moving Mechanism
G03227307

Move mechanism (1) towards rear until side guide (2) for control lever is free.

Removing and installing drive unit with transmission for sliding/tilting sunroof actuation, see 67 61 510 REMOVING AND INSTALLING OR REPLACING DRIVE WITH GEAR FOR ACTUATING SLIDE/TILT SUNROOF .

Fig 6: Removing Drive Unit With Transmission
G03227308

Release screw (1) and remove side guide (2) for control lever for setting up inwards.

Fig 7: Removing Side Guide For Control Lever
G03227309

Move control rail (1) forwards until pin (2) is in opening (3).

Fig 8: Moving Control Rail
G03227310

Gently raise support (1) for glass sunroof lid and slide control rail (2) forward until the guide (3) on setting lever (4) is in opening (5).

Fig 9: Raising Support For Glass Sunroof Lid
G03227311

Turn support (1) for glass sunroof lid upwards until the guide (2) enters the opening (3).

Fig 10: Turning Support For Glass Sunroof Lid
G03227312

Slide mechanism forwards until the pin (1) is positioned before the edge (2).

Fig 11: Sliding Mechanism Forwards
G03227313

Lift linkage (1) out of slide (2) (support for water channel) and push slide (2) back approx. 5 mm.

Fig 12: Lifting Linkage Out Of Slide
G03227314

Push setting lever (1) forwards. Slide control rail (2) forwards until the slide (3) emerges from the guide duct (4).

Fig 13: Pushing Setting Lever
G03227315

Raise slide (1) and slide back a little with control rail (2).

Fig 14: Raising Slide (1) And Sliding Back A Little With Control Rail (2)
G03227316

Push setting lever (1) towards rear up to end of control rail (2) and turn front of control rail (2) upwards.

Fig 15: Pushing Setting Lever Rear Up To End Of Control Rail
G03227317

Turn slide (1) and remove from control rail (2) towards top.

Fig 16: Removing From Control Rail
G03227318

Slide control rail (1) back and remove from setting lever (2) and lock (3).

Fig 17: Removing From Setting Lever And Lock
G03227319

If necessary, press down lock (1) and remove control rail (2) completely from setting lever (3).

Fig 18: Removing Control Rail From Setting Lever
G03227320

Release screw (2) on tube clamp (1).

Fig 19: Releasing Screw On Tube Clamp
G03227321

Push setting lever (1) forwards and guide nipple (2) up to end of tube guide (4).

Lift out tube guide (4) upwards/downwards a little.