Touran starnge noise

Hi Folks,

I have a 5 year old Touran 2.0 TDi DSG with 126k covered. I have owned the car from new.

I have recently noticed what I thought was tyre or bearing noise coming from the rear. My father (an ex mechanic) was sat in the back and noticed it first. On Sunday I swapped the wheels back to front on the same sides and the noise has changed dramatically so that it now appear to come from the front. I thought maybe it was a tyre problem and so substituted each front wheel in turn with the spare and had a test drive, the noise continued.

The noise seem to change slightly/get louder when braking. It's a rumble at speeds above 50mph but speed related and audible as a dull "whoof" noise at low speed.

I have spun/shaken both rear wheels in the air and there was no play although I can hear a mild even grating noise on both sides from the pads/discs. The discs are unmarked and the pads (the originals) are about

75% worn. I cannot hear bearing noise and both rear wheels sound identical.

I cannot easily spin the front wheels (I due presume due to it being a DSG?) but there is no discernible play. The pads and discs are also the originals with about 60% wear on the NS and 75% wear on the offside.

Tyres on the rear now are Dunlop SP Fast Response at about 3mm, tyres now on the front are Goodyear Efficient Grip at about 4mm+

Before I head for the (friendly but expensive!) main dealer, any thoughts as to anything obvious I've missed please?

Thanks.

Reply to
Doctor D
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Well you're about to need new tyres anyway, but have you checked them for balance?

Reply to
Duncan Wood

Thanks Duncan. I think the noise seems much heavier than that. Just been to town and at rolling speed I can now actually feel the rotation on a very smooth road as a "lumpy" feeling.

Based on past experience, front and rear tyres will do another 5000 miles or so even if I change them at just under 2mm. I average 50k from rears and 27k from fronts. Most of my distance is motorways, and I'm not a rally driver ;-)

Reply to
Doctor D

Sounds very much like wheel bearings to me. They don't always have play in them when they are on the way out.

Reply to
Henry H

There's a long list of things that can do that, but a tyre/s that's split internally does that, if it's the bearing it'll be really noisy rather than juddering.

well just under 2mm is the legal minimum, 3mm is the point at which anyone wo looks at the stopping distance in the wet suggests changing them.

Reply to
Duncan Wood

Your tyres that were on the rear will have a sawtooth wear pattern on them, probably worse on the inside. Get the rear alignment checked, though this may not cure it completely. Different tyres can help: the nasty directional cheapies my leon had on when I bought it got horrible, Conti sport contact 3 seem hardly affected, my Kumho winter tyes were noisy by the time they came off for the last time.

This seems to affect anything built on the Golf V platform to some degree.

Reply to
Chris Bartram

Thanks to all who responded, but back of the net Chris!

The service manager at the VW dealership is a friend and he got one of the mechanics out to have a look/drive. This guy said sawtooth straight away and asked when I had taken the front tyres off the back! I can't believe I missed it, the wear was so obvious when pointed out. The embarrassing thing is that I had rolled them around my garage checking for distortion but missed the obvious.

The reason swapping each front with the spare didn't work is that both tyres were damaged. This guy said he thought Goodyear, Dunlop, Bridgestone and hard budget tyres seemed to be affected most badly and like you, said Conti don't show the problem. In fairness he said that was probably because they wore out more quickly!

It was now nearly 5.15pm, and they only had Hankook Ventus Prime 2 tyres in stock in the correct size and load rating (94) - OE fit on some Passats apparently.

I had recollections of Hankook being rubbish, but with a 300 mile day tomorrow and fed up with the noise from the current tyres I wandered off to have a Google on my phone and found good reviews about them, that they are now OE on Ford, VW and BMW and the price being quoted to me was very good. They fitted them straight away.

Only done 14 miles so far, but the noise has gone.

Thanks again for the help.

Reply to
Doctor D

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