W205 OM651 C220 CDI 2016 year - Engine noise when it gets warm.

DenislavG

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Jun 16, 2019
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Your Mercedes
C220/2016/OM651
Hello could someone help me out, I have this strange noise when the enigne gets warm it is like squeaking I will upload two video clips one is mine and the other one I found on YouTube.

Vehicle has 265,000 KM done already and I haven't replaced the Timing Chain since there is no noise when I first start it (Cold start)

I have replaced - Timing chain tensioner, I did the Turbo bypass valve , I tried taking out the serpentine belt noise is still there.

ONLY APPEARS when engine gets warm.

Help me out please


 
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