W202 C180 air leak?

[D3AN]

I have a tiny air stream on the drivers side airvent when the fan speed is set on zero I've heard this on a couple of w202 c classes and never investigated as to what it was, has anyone experienced this and know what it is?

 

[type49]

Sounds more like headlight height adjuster. Move the dial & see if the noise changes note, if so, look for a broken violet hose, probably around the headlights if the car has had any accidents.

 

[D3AN]

Thanks for the reply, will check in the morning ......
Thanks again

 

[D3AN]

Thanks type49 the headlight adjuster did effect the pitch of the noise and the violet hose had broken in the washer bottle area. Appreciate the advice thanks.

 

[type49]

No problem. You can fix the cut/split with a piece of rubber vacuum pipe.