Whooshing engine

Recently purchased a new 325i (2003) - Steptronic. I recently noticed a whooshing sound from the engine especially in the lower gears. Is this usual or should I be concerned?

Have patience with a first timer.

Wooshing? you mean like some kind of air leak?

No. It actually sounded like a fan but I believe there was a drain of power while it was happening. The car wouldn't accelerate as powerfully as before. But once I got to the higher gears it seemed to stop.


Wooshing? you mean like some kind of air leak?

I have a 2003 330CI and that sound you hear is the mechanical plastic fan . It will run briefly until warm and then when the engine heats up it will run for a short period of time (approx.10 secs.) If it runs longer than that at any time you should have it checked. The elctric fan usually regulates the temp. on it's own. Hope this explains it!
Tile 19

Yeah, Tile 19 is right, its the water pump fan...I took that hellish thing off.

Thanks for the help. I'll keep an eye on it.