Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: High pitched squeek upon light acceleration on 2006 BMW 330i

I have a high pitched squeeking noise upon light acceleration. It seems to be inconsistant. But, you can hear it. Any ideas on what it could be?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Sometimes you can hear a similar sound when the breather system (PCV) failed.
A BMW specialty shop should be able to check the PCV pressure with a manometer.

Zee
If the sound is originating from the right rear wheel, it may be the brake pad wear sensor. It apparently will "flex" enough and make contact, producing the squeak. Really annoying; a local BMW shop should be able to adjust it, but it may set you back ~ $100. Design-flaw.
Didn't find what you were looking for?