Strange noise


Registered User
Hi all,

Got a strange f...g noise on my S1, see this video (max volume or with a headphones)

At the iddle point, can hear a cyclic noise and then while I'm driving a whistle.
This noise appears only when the engine is warm and currently it's very low and too difficult to make it notcied by a garage.

Did soemone meet the same noise ?
Any specialist of TSI engine to advise..
I'm thinking of a accessory pulley (poorly lubricated), or a solenoid valve Noisy, or the turbocharger.
Also the noise can be heard only Inside the car, on the right side..

thanks for your help


Registered User
Does sound like a pulley, try removing the auxillary belt and running the engine, if the noise goes you know there's a defective bearing on a pulley


Registered User
Try putting the airconditioner on and see if the noise disappears.
My airco pump makes a noise at idle sometimes but never when it's at the dealers (of course).


Registered User
Already tried but the noise has no link with the air-conditionning. Currently I do not ear the noise any more, seems that my car prefers warmer weather ;-)


Winter is coming...
Complete long shot but what level is the coolant in the reservoir bottle ?

I had a similar noise that I couldn't trace, I eventually realised that the coolant was about a cm over the max line in the bottle.

I removed the excess and haven't heard the high pitched noise since. Could be completely unrelated but it thought I'd share my experience.


Registered User
Thanks for sharing your experience, couldn't be the same root cause for me as the liquid is below max level. However i'vé seen several threads about vw water pump noise.