Humming/Whirring type noise

[RedHP]

Does it sound like its coming from below and as you accelerate...?

Red

[mcmaddy]

It just sounds like tyre hum but only seems noticeable at around 40mph.

[Snooze]

Could be rear wheel alignment? I've got the same noise and told its rear wheel tracking.

[monkeyhanger]

Chris: You got the wrong car - paid for a GTI and ended up with a Hummer! 

Best get it back in for warranty if it's not a wheel bearing, there's nothing rubbing in the wheel arches, and it is speed (not gear) dependent, it probably is wheel alignment. Check out the inside and outside rims of your tyres - just in case you have a sidewall bulge already.

[mcmaddy]

Been to local tyre place first thing and has the car up on the ramp. Nothing untoward to be seen so checked the tyres and they are fine also. The tyres all look square with no bulges but they did say they've had two other gti's with Bridgestones on in the last fortnight with same complaint. I think the problem is more temperature related with the bridgestones but I'll wait to see what happens when the temperature rises (hopefully it will at some point this year  ) and if the problem gets worse I'll book it in to get wheel bearings checked.

[monkeyhanger]

Chris: Temp will have to rise a lot to see a big improvement in the Bridgestones. They're hard at the best of times, but they get a lot harder and grip drops off noticeably below 10C. For most non winter tyres that's 4C before performance drops off.

[mcmaddy]

Yeah but I'm too skint at the minute to be able to change them out for Michelin 4s 

[monkeyhanger]

Yeah but I'm too skint at the minute to be able to change them out for Michelin 4s 

When you have the money, it'll be the best £400 you'll spend on the car. I don't regret spending the £600 on mine, I just bemoan the fact it was needed because I lost out on the VW tyre lottery twice on MK7s. 

If/when you are ready to buy, I can get you in at Costco Gateshead one weekend.

[mcmaddy]

Yeah that'll be good Matt cheers. Maybe should have bought some winter wheels and then wouldn't have noticed haha. They do seem fine in normal temperatures or at least when warmed up.

[gtiaps]

Yeah that'll be good Matt cheers. Maybe should have bought some winter wheels and then wouldn't have noticed haha. They do seem fine in normal temperatures or at least when warmed up.

This is one of the reasons I put winter sport 5's on standard rims for the winter the ride and temp drops they seem spot on for the ride and handlings not too bad.
don't get me wrong the 19 inch santis with P zeros on were ok but aswell as the ride wanted to protect the rims from salt etc etc etc roll on the spring wen I put them back on