c63 pas noisy

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HoppoV12

Member
Joined
Apr 9, 2018
Messages
56
Location
Leicester
Car
S65
i have a 2010 c63.

when i got the car it had a bit of a "groan"
especially when cold or at stand still.

this has gotten worse untill the other day for some reason it began to push fluid out of the headder tank.

ive cleaned this up and removed the rack to drain the fluid and replaced with new.

the car was transformed. the pump was silent and smooth and no more fluid loss.

2 weeks later and the noise is slowley comming back.

the fluid is very foamy its almost like its drawing air in somwhere

any ideas what might be causing this?
 
Have you looked to see if the fluid has dropped?
It sounds like a leak and the fluid is low and could be air in the system.
I would look at the PAS reservoir and any pipes.
 
i fully tested the system for leaks and found nothing. only where it was coming out of the tank and running down the front of the block.
 

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