54 10 020 Removing and installing mechanism for front glass lid

Necessary preliminary tasks: 

• Remove glass slide/tilt sunroof, refer to 54 13 080 REMOVING AND INSTALLING COMPLETE GLASS SLIDE/TILT SUNROOF  .
• Remove glass slide/tilt sunroof lid at front, refer to 54 10 170 REMOVING AND INSTALLING FRONT GLASS SLIDE/TILT SUNROOF COVER  .
• Remove glass slide/tilt sunroof lid at rear, refer to 54 10 175 REMOVING AND INSTALLING REAR GLASS SLIDE/TILT SUNROOF COVER  .
• Remove front drip moulding, refer to 54 13 100 REMOVING AND INSTALLING/REPLACING DRIP MOULDING  .
• Remove drive unit with gearing, refer to 67 61 515 REPLACING DRIVE WITH GEAR (FRONT) FOR ACTUATING SLIDE/TILT SUNROOF .

Overview Of Glass Lid Mechanism: 

Fig 1: Identifying Glass Lid Mechanism Components (Front)

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If necessary, lightly grease guide channel.

Removing upper connecting link (return linkage): Bend open tabs (1) of cover strip (2). Remove cover strip (2).

Fig 2: Removing Upper Connecting Link (Return Linkage)

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Installation: 

Cover strip determines alignment of mechanism.

If necessary, slide drive cable plate (1) fully forwards with a screwdriver (stop).

Fig 3: Sliding Drive Cable Plate Forward

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Pry out locking lever (1) of detent element at front from guide rail (unlock).

Fig 4: Pry Out Detent Element Locking Lever

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Installation: 

Do not move drive cable plate before locking lever (1) is engaged (risk of damage).

Fig 5: Do Not Move Drive Cable Plate

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Pull upper connecting link (1) towards rear out of drive wedge (2).

Fig 6: Pulling Upper Connecting Link Out Of Drive Wedge

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Feed upper connecting link (1) out of guide rail.

Fig 7: Feeding Upper Connecting Link Out Of Guide Rail

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Remove upper connecting link (1) in direction of arrow from lower connecting link.

Fig 8: Removing Upper Connecting Link

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Removing drip moulding carrier and lower connecting link:

Slide drip moulding carrier (2) with lower connecting link (1) towards rear and remove from guide rail.

Fig 9: Removing Drip Moulding Carrier And Lower Connecting Link

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If necessary, push slide element (1) towards rear and remove from guide rail.

Fig 10: Removing Push Slide Element

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Adjusting mechanism before installing glass lid: Insert screwdriver into upper connecting link (3).

Slide drive plate (2) towards rear until drive wedge (1) runs against screwdriver.

Fig 11: Adjusting Glass Lid Mechanism

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