Harsh ride,

[Hoops]

I have a cls 320 cdi 2006, the ride is hard even in comfort mode,
It doesn’t seem any different in sport 1 sport 2 or normal other than it does change height ok.
Any ideas please??

 

[Blobcat]

Hello and welcome

You don’t have run flats tyres on huge rims do you?

 

[Hoops]

No, it’s on 275/35/zr 18 tyres but I did wonder whether they were correct for the car?? Standard wheels

 

[John Laidlaw]

shouldn't it be 245/45 on 17" rims for that car as standard?

 

[Wighty]

You may be able to get some 16/17 inch wheels from eBay for a couple of hundred quid for a car that age . If you aren’t worried about the smaller rims look , then they will be super comfortable .
Have you tried the pressure with your current wheels at 32 All round

 

[malcolm E53 AMG]

How old are the tyres the rubber compound hardens with age?.

 

[LostKiwi]

Also what tyre pressures are you running?

 

[Hoops]

shouldn't it be 245/45 on 17" rims for that car as standard?

Really not sure as there’s so many cars on different sizes it seems.

 

[Liam.Moran]

shouldn't it be 245/45 on 17" rims for that car as standard?

No, my CLS320 has factory 245/40/18 and rear 275/35/18. I believe the airmatic models with the same wheels should have 255/40/18 and 285/35/18.

My CLS has a smooth ride with the 18s even with shorter bilstein shocks and lower stiffer eibach springs and polyurethane anti sway bar bushes.

Might be worth as others have said looking at new tyres if the current ones are dry and hard before you look at smaller wheels (anything smaller than a 18 look crap on a w219!)

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[Hoops]

No, my CLS320 has factory 245/40/18 and rear 275/35/18. I believe the airmatic models with the same wheels should have 255/40/18 and 285/35/18.

My CLS has a smooth ride with the 18s even with shorter bilstein shocks and lower stiffer eibach springs and polyurethane anti sway bar bushes.

Might be worth as others have said looking at new tyres if the current ones are dry and hard before you look at smaller wheels (anything smaller than a 18 look crap on a w219!)

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Mine is rock hard...... almost like the air bags have too much pressure in them all the time

 

[mioba]

Look on the data card and see what the original set up was.

What brand of tyres are you rolling on!

 

[Wighty]

No, my CLS320 has factory 245/40/18 and rear 275/35/18. I believe the airmatic models with the same wheels should have 255/40/18 and 285/35/18.

My CLS has a smooth ride with the 18s even with shorter bilstein shocks and lower stiffer eibach springs and polyurethane anti sway bar bushes.

Might be worth as others have said looking at new tyres if the current ones are dry and hard before you look at smaller wheels (anything smaller than a 18 look crap on a w219!)

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I’d forgotten how good your car looks !

 

[Liam.Moran]

Mine is rock hard...... almost like the air bags have too much pressure in them all the time

especially if you're on air suspension I know someone with 20" wheels on air (little too big for my tastes) and the ride of his car is still good

I’d forgotten how good your car looks !

thanks buddy