HI everybody

 

I'm looking for some advices.

 

I have since December a new superb combi 140cv.

when I've got it, I've immediately switched to winter tyres (Michelin alpin A3), and I must say that they were a bit noisy, but winter tyres are.

 

two month ago, I switched back to summer tyres (Michelin Primacy 3, on 17") and all of a sudden all the small defaults of the road where invading the silence of the car.

 

I've gone to Skoda to make a control of the front and back assembly (sorry, French guy wording in English) and it has been verigied and was OK.

 

but still, I get inside car a lot of vibrations as soon as the road is not mirror like.

 

Big vertical moves are Ok, no question on that, but it looks like small vibrations coming from the road are not filtered.

 

Is here any known issue behind that I can have a look at ?

(part of suspension to check, bottom protection to check).

The bottom of the car resonate, and my previous Opel insignia (Vauxhall) with Pirelli and 18" was not that noisy.

 

Thanks for your advices

 

best regards

 

JM

In my experience road noise always gets worse on a car after about 6 months, probably nothing to do with tyre or other wear.

 

It's just me getting used to to the sounds and vibrations.

Ever notice that when you take a car you have never driven before for a test drive that there is never any road or engine noise..

Same in my case.

Probably it is related with suspension set up. Summer tyres are made from much harder rubber and therefore vibrations goes through suspension and steering wheel.

Try to check tyre pressure, if it is not too high.

As above, check tyre pressure. As temp is heating up so will the tyre pressure.

 

Not sure by how much, but makes a huge difference with our rubber dinghy.

As above, check tyre pressure. As temp is heating up so will the tyre pressure. Not sure by how much, but makes a huge difference with our rubber dinghy.

You must stop wrapping dingys around your rims

I've got 18" Themistos on my Superb and they feel every little bump in the road like you say even if it looks totally flat, theres a bit of road I drive on thats a 60mpg corner and they've put down that grippy surface and it feels like I'm driving over a wash board! It's vanity over comfort! lol

In my experience road noise always gets worse on a car after about 6 months, probably nothing to do with tyre or other wear.

It's just me getting used to to the sounds and vibrations.

Ever notice that when you take a car you have never driven before for a test drive that there is never any road or engine noise..

That's definitely true. I thought I was the only who noticed that on a car you've never driven before, even if it's an older car.

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Road surface has a lot to do with tyre noise.

 

Worst road surface I have found is M25 concrete sections.

 

Best road surface M23 near Gatwick,some sections resurfaced with tarmac and no road noise at all,why can't all roads have this new quiet surface when they are resurfaced ?.

 

Rant over.

Or continental tyres nearing the end of life on mine caused a large increase in road noise,

I swapped my conti roar's for Dunlop (audi original) due to many punctures,not the tyre fault I know but just unlucky.

 

Much quieter as a result.  .

HI everybody

 

sorry for the delay, so many daily tasks in the todo list.

 

thanks for your comments.

 

for sure tyres type have a huge impact on road noise.

 

the initial ones I had were Pirelli P7 cinturato (91W), not really the type of rubber to have on such car. Michellin Primacy 3 are much silent and do not bend in each turn...

 

lets' see, the monster will go on maintenance in two month and i'll ask them to check the front suspension again...

 

anyway have a good day.

 

best

 

JM

Many posts on here report how pot holes sound much worse on low profile tyres, could it be that?

Vive la France

Many posts on here report how pot holes sound much worse on low profile tyres, could it be that?

Vive la France

Sound and feel worse!  It feels like somebody has put a sledgehammer against the chassis when my 40 profiles hit a pot hole   There is so little flex on the sidewall with such a profile.  I've seen 35s and 30s on some Audis and Beemers (as factory fit) - don't know how people can tolerate them unless on a track!

I have the Pirelli P7 Cinturato on 17" wheels on my new (March) Elegance.

 

So far quite impressed with them, road noise while evident is not intrusive.

What are the latest thoughts on best tyres for the Superb, in relation to road noise and comfort when the time comes to change.

I love my Dunlop Sportmaxx RT tyres (The previous version of the Sportmaxx without the RT gets terrible reviews, so don't be put off by this). 76 dB road noise on the EU label, loads of grip wet and dry, decent rim protection and I paid €96 a corner for 17" ones with 94XL load rating - most commonly stocked tyres are 91 load rated, which isn't enough for the Superb, so watch for this.

I love my Dunlop Sportmaxx RT tyres (The previous version of the Sportmaxx without the RT gets terrible reviews, so don't be put off by this). 76 dB road noise on the EU label, loads of grip wet and dry, decent rim protection and I paid €96 a corner for 17" ones with 94XL load rating - most commonly stocked tyres are 91 load rated, which isn't enough for the Superb, so watch for this.

76db sounds high - they must be on the noisier side?

Should have been 67 :p... 

Should have been 67 :p... 

Ah I see....that should be very quiet then.

So quiet I can hear engine and wind noise while cruising and set the radio 1 or 2 volume levels lower than before for the same perceived volume.

I swapped my conti roar's for Dunlop (audi original) due to many punctures,not the tyre fault I know but just unlucky.

 

Much quieter as a result.  .

 

How do you find the relative comfort of the Dunlops over the Conti's? much better?

 

Yves

They are less annoying when it comes to noise,great grip in wet and dry,very accurate when cornering at speed but not very fuel efficient,heck I don't care about the latter.

Same thing here. Have a Superb II FL, just over 1 year old and the road noise is much higher than in my previous Octavia RS FL. Don't know if Conti's are louder and prone to more roadnoise or if there's something else wrong. Highest noise at around 100-120 km/h

Maybe the mk3 will address the noise issue. It would be an excellent selling point.

 

Heavy car on low profile 18 inch tyre= noise  then add rubbish (or normal uk) road surface = more noise.

 

Tyre pressure also has an impact on noise transmission.

I have been fiddling with noise problems from the rear tires and have tried several things.

 

The main conclusion is that the factory spec of rear camber is equal with noise ! In no time heel and toe will come to the rear tires. When you in next season move those tires to the front, the problem just gets more evident.

My car is very quiet now and there is no problems any more.

Solution on my cars was:

1. Forget the stupid factory spec of rear camber. Up to -1 50' is allowed. Completely crazy. Go for -0 40'. Factory toe spec is fine (+0 10')

2. Use factory spec tire pressure + 10%

3. Use a silent tire, not the factory mounted P7 crap. I use Hankook Ventus Prime 2. Very silent tire.

4. Use modified X when rotating the tires. Means front tires goes straight to the back (LF -> LR + RF -> RR) and the back tires go crossed to the front (LR -> RF + RR -> LF) - This does not apply to tires with one way rotation. This rotation scheme minimizes tire noise.

 

If you want to check your camber it is very easy. It is just a triangle measurement. A string, a nut, 1" of tape, calculator and a ruler. Most people can do the camber measurement in their own driveway for 50p. Adjusting requires some basic tools, but must be accomplished by a toe measurement / adjustment.

Edited 21 June, 201511 yr by i-s