This is an '08 S60 T5 with 11,700 km on the odometer, I have a winding noise coming from the hood when accelerating at medium speeds and the RPM at about 2,000; IF I go to a higher speed or RPM the noise seems to go away, also if I let go of the gas pedal the noise inmediately goes away.

Also, the noise seems to be more noticeable when going uphill.

If I´m parked and rev up the engine the noise is not present so it´s only happening while moving.

Fluid levels are ok, car runs just fine, I´m wondering if this is the beginning of a major problem.

Any ideas will be appreciated, Obviously I´m taking it to the dealer since it is under warranty but I would like to have a couple ideas, before hand.

Regards

NVMX

 

Welcome....

Is this your first turbocharged car?

 

Ha, my first thought.

 

Yes, this is my first turbo charged, vehicle,

However, the noise is not a nice winding turbine sound.

One more note, when the transmission shifts (automatic) the noise stops, for half a second, then, it goes on again.

 

sounds like turbo spool to me....

 

If all fluids are good, then it is just the normal spool of the turbo....

A turbo will spools harder and louder under a load....

This is a pretty good video to understand turbo's functions: http://www.youtube.com/watch?v=Xp-EV...d.php?t=160381