Hmet

Anyone experience a whistling sound on deceleration with or without brakes?

FAWI

Yes sound like birds even without pressing brake Turbo brake the PSCB the white caliber one

But GOOD NEWS

I received updated brakes from the factory yesterday and no noise at all

problem solved

contact your Porsche dealer to get yours

Have a good day

Hmet

thanks for the response. The brakes sound is the squeak squeak sound at slow speed.
What i experience is a steady whistling sound with decelerations from higher speeds (60 MPH is typical), is that also the pccb brakes?

aottley

It may be noise from the rear spoiler. Is the spoiler up when you notice the sound?

Hmet

I double checked. Spoiler is not deployed when the noise happens