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Not so funny transmission noise on 200CDI

801 views 1 reply 2 participants last post by  ohman 
#1 ·
Hi folks

I have a '06 reg'd W203 with 200CDI diesel engine.

While accelerating very lightly I have strange noise coming out of gearbox which doesn't sound normal. I could describe the noise as a "surge" or cavitation noise, it is not constant like bearing fail and it occurs only thru 1600-1950 rpm.

When rolling on slow speeds and pushing gear selector from D to N, the noise stops. So I reckon it IS related to gearbox. Fluids have been changed and no metal whatsoever came out, and oil was not black. Gearbox was flushed and all-in-all 12 litres was used and quantity checked both cold and warm.

What could be the problem?

Thanks for help :bowdown:
 
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