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      07-28-2020, 01:43 PM   #4
G30_fan
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Drives: 2018 BMW 540i XDrive
Join Date: Jul 2020
Location: Providence, RI

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Quote:
Originally Posted by AP View Post
''Tis was a well known issue on previous 5s.
Had it on my e39 and f10 and easily fixed assuming your issue is the same

The is issue is that the rubber seals stick to the bodywork and when the body twists this rubber minutely slips and causes that creaking noise

The fix is to apply gummifledge

https://www.amazon.co.uk/Gummi-Pfleg.../dp/B007TNOQDI

To the rubber
I have some bmw branded gummifledge but don't believe they sell it any more . Mine is a spray but see it now comes in a stick

Apply to the rubber seals and it will last a very long time

Ensure that you don't get silicon on the rubber or that you use any car polish or waxes on the metal where it meets the rubber seals

On previous cars the noise went away if you lowered the window y a few millimetres, if that works for you then I'd say that is your issue.

I proactively applied it to my g30 when new I but haven't had that issue to date after 3 years.

Gummifledge is a rubber conditioner. Other product may also suffice but don't experience of anything else.

Thanks a lot for the help! shame that this is a problem in an otherwise great car. Do you be chance know why the noise stops when the window is rolled down?
Appreciate 0