Hi all, I've noticed that my car is making a whistling noise whilst driving but not 100% of the time. It is quiet up to around 30-40mph but then a whistling sound starts. It seems to stay then but is harder to hear with wind noise etc... As soon as you slow back down to less than 20-30mph or so it stops again.

To try and rule out the engine or gear box i put the car in manual mode and went from 5th to 4th to 3rd so that the revs changed / raised as the speed slowed slightly and the whistle didn't change etc... apart from it slowly going away as the car slowed down so this would seem to rule out the engine or gear box etc... Could it be a wheel bearing or would that make a whistle noise all the time at all speeds or can it cause symptoms like i have over a certain speed. Only other thing i can think is a brake caliper sticking??

Any help would be much appreciated before i book the car in for it's service in the next couple of weeks so i could mention possible causes to the garage when i book it in rather than just "it's making a whistling noise" etc..

Cheers

Dave.

Wheel bearings do not normally whistle, more a light rumble. Wheel bearings also change sound on cornering, so try turning left if the noise lessens it is the left bearings, this is due to the transfer of weight to the right bearings. To check your CV joints try hard lock turning in an empty car park.

Retired M.V.Tech.

I'm in work today with a chap who is a lotter more mechanically minded than myself so we have been out for a run in the car so he can hear the noise for himself. He agrees it's not a bearing issue as it's defo a whistling noise rather than a rumble / bearing sound.

He thinks it may be one of the rear brake pads resonating in the caliper and causing the noise.... Or another issue with the rear brakes. He's suggested i check how warm both the rear brake discs feel when i get home tonight to see if one is warmer than the other etc....

Cheers

Dave.

Check the door seals, had this on mine and the door seal was replaced under warranty at the first service. It's come back now so will be mentioned to the dealer when it goes back in. I ended up taping the seal to the door to stop the noise and can see me doing this again for the next couple of weeks...

See here

Check the door seals, had this on mine and the door seal was replaced under warranty at the first service. It's come back now so will be mentioned to the dealer when it goes back in. I ended up taping the seal to the door to stop the noise and can see me doing this again for the next couple of weeks...

See here

No this is defo coming from the rear wheels.... Sounds like the rear drivers side wheel and changes as the wheel speed changes.

Cheers

Dave.

My Fabia VRS has started doing the same thing. You have to be travelling at 50mph of higher to hear it though.