V50 Wheels/Tyres : Road Noise

[eruptron]

I've noticed some road noise from the front end Have swapped wheels front to back and noise stays at front isn't really side specific and the noise does increase under braking so would appear more likely to be tyre noise rater than bearings.It has some Maxxis rotational jobs on it so think it's these they are pretty new though 7mm.V50 06 2.0d
Anyone any thoughts?

[iainmd]

It could just be that type of tyre. I used to have P7's on mine that had above average road noise and recently swapped them for P-Zero's. The road noise is much reduced now.

[Solarin]

I'll second this.

Recently replaced the original fronts (Pirelli P7) with Toyo T1-R tyres. One of the first things I noticed was a reduction in road noise - and a lot more grip!

[iainmd]

Originally Posted by Solarin

Recently replaced the original fronts (Pirelli P7) with Toyo T1-R tyres. One of the first things I noticed was a reduction in road noise - and a lot more grip!

Keep and eye on the tyre wear with the T1-R's. I had a set of those on the front and they only lasted 6,000 miles because the tread wear was uneven. I kept them inflated to the manufacturers spec but even so they wore very heavily on the shoulders and not in the centre so despite 4-5mm of tread in the centre the outsides were near bald!

I obviously had the alignment checked and it was fine so I can only assume they needed a higher inflation pressure than the pirelli's.

[glypto]

It seems S40/V50/C30 is very sensitive to road surface and tyres (much more than my former cars) - thus the road noise. Does anybody know why is this ? Is it the shock-absorber, bearing ...?

[oliverlim]

Originally Posted by glypto

It seems S40/V50/C30 is very sensitive to road surface and tyres (much more than my former cars) - thus the road noise. Does anybody know why is this ? Is it the shock-absorber, bearing ...?

I totally agree! The P7 that I have in my 2 months old C30 is loud esp on B roads. Anything other then smooth roads and the tyre/road roar is really dissappointing for a "luxury" car. Even my old Honda Fit did much better for road roar.

Anyone knows if sound proofing the wheel arch and fenders help?

[Mick1539]

Hi, I have the same on my V50 Sport 20D with 225/40/18's just replaced the front 2 and put Avons on and noticed increased road noise and the inner edge was down to the metal, did not even know. Only cos I had a pre 1st MOT check. so new tyres and tracking.

The car went to the dealers for MOT and passed no prob with an advisory that the inner of the rears were worn put saying they had 4mm and 5mm on the back and 7mm on the front. Tonight had a puncture in one of the rears and the wall has gone on the inner edge and the other is not much better. I though tread depth measurements were supposed to be across the whole wheel? if so 4 and 5 mm went really quickly. (

[Guru]

Originally Posted by Mick1539

Tonight had a puncture in one of the rears and the wall has gone on the inner edge and the other is not much better. I though tread depth measurements were supposed to be across the whole wheel? if so 4 and 5 mm went really quickly. (

Seems like you have improper alignment and too much negative camber / \ , max should not be more than -2.5*, you should have that checked.

[Mick1539]

Originally Posted by Guru

Seems like you have improper alignment and too much negative camber / \ , max should not be more than -2.5*, you should have that checked.

Thanks. When i got the car a year ago there was a strange low vibration in the back of the car when going round sweeping bends on the motorway which made the kids feel sick. the Dealer realigned the rears and it seemed to go away. But I supposed they could always be knocked out again

[Mick1539]

All Fixed, Dealer performed 4 wheel alignment and replaced some rear bars for adjustable ones (volvo recomended part change) and it drives 100% better. even better all under warranty :-) lets just see how long the tyres last now