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W204 c220 hissing noise

Rodrussell

New Member
Joined
Sep 23, 2019
Messages
1
Location
Durham
Car
C220 CDI Amg sport
Hi, I’ve got a 2013 c220cdi w204 with the om651 engine. Having some issues with hesitation when accelerating. There is a hissing noise from near vacuum reservoir in engine bay.
Is this a normal noise or do I have a leak
Many thanks in advance
 
I think the noise is normal. I have it and a friend also has the loud hissing noise on his OM651.

Have you got any fault codes?
 
i have the same car but 2012 it's not normal to have a hissing sound and hesitation im guessing a leak in a pipe somewhere
 

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