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Old Tue, Oct-15-2019, 03:56:39 PM   #1
Leipzig
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Germany




Default Help with strange Noise

Since i got my m3 (1year/5000miles) i have this metallic noise, maybe a bit like chainslapping?. It’s not constant as you hear in the video, it‘s seems louder from the underside, but that can be the loud valvehead that suspressing the noise. The S54 run‘s beside that very nice, pulls strong and smooth.

I have done on the Engine the following:
Rodbearings
Checked Oilpump and piston
All valves are ok (clearence)
Vanos is checked
S63 diagraph Springs
All new bolts in the Vanos
New chaintensioner
Vanos hub replaced
Beisan Style pump disc mod
Fresh oil

And so on...

Here is a Video:


I‘m open to Andy help or ideas!

Best regards from Germany!
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