The side windows falter when drawn up and down
Symptom: The side windows can sometimes falter when raising and lowering.
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The side windows falter when drawn up and down
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Fault symptoms
The side windows can sometimes falter when raising and lowering.
Probable cause
The pop-rivets inside the window moulding protrude too much and the friction between moulding and glass is too great. Additionally the window attachment may need adjustment.
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1.
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Clean off any paint protector on the glass.
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2.
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Lower the side window, insert a blunt object into the weatherstrip and see if any of the pop-rivets are protruding.
If the rivets are correctly fitted, continue with step 9.
If any of the rivets are protruding, continue with step 3.
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Note
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Do
not
use a pointed or sharp object.
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3.
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Detach the front or rear end of the window moulding.
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4.
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Inspect the two pop-rivets (part no. 79 72 516) at the front edge of the moulding.
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5.
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Inspect the three pop-rivets (part no. 46 85 632) at the rear edge of the moulding (B-pillar).
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6.
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Check the pop-rivet (part no. 79 72 516) in the rear lower edge
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7.
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Drill out the faulty pop-rivets and fit replacements.
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8.
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Clean the moulding of drilling filings and refit it.
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Note
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Check the rivets one more time before fitting the moulding.
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9.
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Spray the moulding
inside
with Krytox 30 32 497. Use the extension pipe on the spray bottle.
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10.
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Dry away excess spray from the mouldings. Raise and lower the window five times to distribute the lubricant.
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11.
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Check the function.
If the problem remains, continue with step 12
If the function is correct, clean the window.
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12.
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Check the adjustment of the window by lowering it 10 mm and gripping the upper edge. If it does not move 1-3 mm forward and back it must be adjusted as per the following steps:
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13.
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Remove the door trim and water cover.
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14.
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Undo the two screws on the rear rail. Grip the top of the window and pull it back towards the B-pillar. Pull down the rail until 1±0,5 mm of the oval hole is visible. Tighten the screws.
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16.
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If the window still falters, the rear of the rail can be raised 0.5 mm.
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18.
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Fit the trim and water cover. Clean the glass.
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