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      10-20-2020, 08:34 PM   #4
ingl0405
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Drives: BMW 650i
Join Date: May 2020
Location: Canada

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Keysersoze819 usually wheel bearings will sound like a deep grind, this noise is more like a coasting bycycle (click click click or tick tick tick), and it can only be heard if you drive close to something that can bounce the sound back from the outside.

I took the car to the dealer and told them to go to town on it. It turns out it is a loose turbo wastegate flap.

At this point, there is no impact on performance yet, but in time it will result in a loss of performance. One possible fix they can do is to try and adjust the flap, so they quoted me approx 2k for it ($750 CAD per every time they have to take the turbo out, adjust and test drive to see if the noise is gone).

The SA advised me to leave it as is, but knowing myself I will try to find a way to adjust it myself or with some qualified help.

Here are some videos I found on the topic:

Same noise but way worse in the video. Guess that's what I have to look forward to if not addressed.
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