Since changing the tyres on my VRS a couple of months ago I have had a ver loud vibration in the car at anything over 60mph, I have tried changing the tyres round the car to see if it moved the noise, and tried changing the wheels for the spare to see if I could remove it completely. None of this has worked

Has anyone had a similar issue, or can anyone give me an idea of where to start now?

Out of true tyres maybe?

Have you had all the new tyres balanced? Checked the tyre pressures?

All tyres have been balanced twice and I check the pressures every sunday

Were they balanced at the same place twice?

What brand/size tyres specifically? Some are worse than others for NVH. Also, were they new (as opposed to used/remoulded)?

Edited 5 February, 201313 yr by dieselV6

Tyres were balanced in two places, the tyre shop where I had them fitted initialy and at a garage locally. There were new tyres not remoulds, Hankook Ventus V2's or something like that, too many letters to remember without looking at them.

All Hankook tyres that I looked up are listed as very noisy, 70dB+, if you are coming from e.g. 67dB Goodyears then you would definitely notice increase in noise. Tyre sale websites list noise nowadays.

It could be that they are simply much noisier than you are used to, but there's nothing wrong with them.

Have you checked the tyre pressure? Perhaps someone inflated them to much higher/lower pressure than what's listed on fuel tank flap? You read correctly, lower pressure can cause vibration too, it does at rear of my Mk1 Superb.

I asked about used/remoulds as lately uneven wear leading to "teething" is an increasing problem. I only managed to do it once, ran fully loaded FWD car (5 people, full boot, towbar box) at 120mph-130mph over 2x500 miles course. Front tyres became very noisy after that (and lost 3mm of thread during the 1000 miles), and stayed noisy till I replaced them at 3mm thread.

But new tyres should be OK, teething is problem for used ones.

Edited 5 February, 201313 yr by dieselV6

I'm pretty sure its not just tyre noise, I went from some Ling-Ling tyres (they were on it when I bought it) to the Hankooks, which are rated 68dB. The vibration is bad, causing my rear view mirror to vibrate at 65mph when its at its worst.

OK, if it is this bad and moving tyres around does not help, then it could be a whole batch of duff tyres (but you said you used spare and it did not make a difference), or more likely something went wrong during fitting, e.g. car got raised on subframe/control arms/rear beam, or someone "improved" front toe?

Geometry check would be next. Especially if you were offered it at first shop and politely declined it....

If you've just had them replaced are the seated on the rim correctly? It would give a feel of a distorted wheel. Also if they are directional tyres are they on the right direction? Ideally u need a complete spare set of wheels to try as only changing one wont drown out the noise of the other 3 presuming u had all 4 replaced.

Had all tyres checked after work today, no issues. All seated properly and geo check was fine. This has me thinking it isn't tyres that are a problem... But the noise is only really there from 55-70 really loud, kinda disappears after that?

If it were a wheel bearing you'd expect it to get louder the faster you go. Does it get louder when cornering in a certain direction?

Had the wheels bearings checked, noise goes when unloading the right hand side of the car

So when your turning right and putting the weight on the left? I suspect it's a wheel bearing on the drivers side then. It's difficult to recreate road speed on a ramp with any undriven wheel like the back ones on an octavia.

Local garage checked the wheel bearings with an ultrasound reader, couldn't find any noise coming from any of them, but could the still be shot if no noise is apparent?

Well if they couldn't hear anything from the bearings when it's being driven its unlikely to be those. Hmmm gearbox diff bearings maybe? Sorry I couldn't be of more use. Nowt worse than faults like this! :(

Thanks for all the help, going in tomorrow, hopefully nothing too big and expensive...