[RingenhofBMW]

Hi!

I'm in my break in period @560 km. Have this whistling sound at 2000 to 3500 rpms when pressing the gas pedal halfway in sport plus only. Is this normal?

[gmzanatta]

Turbo whistle?

Post a recording if you can.

[pit1]

I'm getting turbo spool under moderare/heavy acceleration. A bit louder after break-in. Seems to be coming front left side.

[RingenhofBMW]

Maybe more like a squaky sound. Doesnt sound like turbo spool.

[OrangeCrush]

I am also hearing something like this in the same situatuon. What I am hearing is more of a pshhhsssss sound with almost a chirping/whistling mixed in. I hope it's not waste gate rattle. Can this engine get the dreaded wastegate rattle?

[zenmaster]

Must be the turbo. Time to recall and upgrade to much larger part.

[135iDCT]

me too same problem

[Robin_NL]

Every time I start my M2 in my garage I hear a whining..






I think it's one of them neighbours.

Cheers
Robin

[Adem1534]

Originally Posted by Robin_NL

Every time I start my M2 in my garage I hear a whining..






I think it's one of them neighbours.

Cheers
Robin

WE HAVE A WINNER!

[RingenhofBMW]

So, whistling sound is normal?

[zenmaster]

Originally Posted by RingenhofBMW

So, whistling sound is normal?

Depends what's actually whistling and how loud it is. I had my e90 turbos replaced under warranty when they got too loud. Service dept never told me what the problem was. I suspected the bearings were worn somehow.