W204 Hissing Under Acceleration

Page may contain affiliate links. Please see terms for details.

shaun.priest

New Member
Joined
Apr 26, 2015
Messages
24
Car
Mercedes C220 (2012)
Hi there,

My 62 reg W204 (48500 miles) is making a hissing / blowing air noise when I accelerate. I noticed it yesterday when I had the windows down. It's definitely coming from the engine and gets louder upon the speed increasing. The noise is not present when I took my foot off the accelerator.

No symptoms other than the noise itself. Car seems to accelerate as quickly and I don't see smoke or anything like that.

The water pump was recently replaced as it was leaking. But that was around 2 months ago.

If someone could tell me what this is likely to be with a rough price to repair, I'd really appreciate it.

Many thanks in advance.
 
Last edited:
Probably a split hose on the intercooler or turbo.

Russ
 
Turned out need a new intercooler.
 

Users who are viewing this thread

Back
Top Bottom