2000 BMW 328i (E46) Technical Service Bulletin # 510100 Date: 000501
Window Regulator - Squeaking/Clicking Noises
GROUP 51
Body Equipment
Bulletin Number
51 01 00
Woodcliff Lake, NJ
May 2000
Service Engineering
SUBJECT:
Creaking, Squeaking, Clicking Noises From Window Regulator
MODEL:
E46 sedan
Situation:
Some E46 sedan customers may complain of a variety of noises that seem to come from the front door window or door seals. Many of the noises
may be traced to the window regulator installed in cars produced prior to 2/00.
The regulator rails used in the early style regulator were galvanized to prevent corrosion, but the relatively rough surface of the rails would wear
away the plastic sliders as the window operated, causing noises as the sliders wore down.
Correction:
The window regulators used in production since 2/00 are coated with black plastic to reduce friction between the sliders and the rails, as well as the
lift cables and the rails.
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In case of customer complaint, verify the source of the noise, and if it is determined that the regulator is the source, replace the affected regulator
with the new style unit.
Parts Information:
The part numbers of the new style regulators have been superseded.
Note:
Initial parts supply is limited, please do not order excessive quantities.
Warranty Information:
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Covered under the terms of the BMW New Vehicle Limited Warranty.
