Tyre Size Advice

[Jenny Tills]

Hi to all...
I have a 2013 cls estate with 19 inch wheels, with 255 35 and 285 30, front and rear, respectively.
I was wondering if i could fit 255 40 19 front and 285 35 19 rears in the interest of a slightly better ride quality. I live in rural England, where there is no money to maintain roads properly.
Any and all information is greatly appreciated, as ever.

 

[LostKiwi]

Hard to know for sure but you would probably get away with that. You should discuss it with your insurance though as they may be less than happy.

Our SL has the same as you want to do and it works fine.

 

[Jenny Tills]

Thanks for that.
Sounds encouraging.

 

[malcolm E53 AMG]

If you are looking at improving comfort it's probably better to fit 18in wheels, 19in look very nice aesthetically but are not really practical on our ‘third world’ roads unless you have air suspension.

 

[LostKiwi]

If you are looking at improving comfort it's probably better to fit 18in wheels, 19in look very nice aesthetically but are not really practical on our ‘third world’ roads unless you have air suspension.

Or ABC...

 

[Wighty]

I would second the 18" wheels , a tyre depth of 30mm on our roads is shockingly small .

 

[Srdl]

I would second the 18" wheels , a tyre depth of 30mm on our roads is shockingly small .

It’s not 30mm but 30% of the 285mm width

 

[Wighty]

It’s not 30mm but 30% of the 285mm width

Sorry buddy , more like 42.75mm , which is still shockingly small for our roads

 

[keefysher]

Sorry buddy , more like 42.75mm , which is still shockingly small for our roads

99.75mm or just under 4" in old money (or about the width of your hand), is the sidewall height on a 285/35 tyre, shirley

 

[Wighty]

I'll get back to my rocket science

 

[Jenny Tills]

I have considered 18 inch wheels. I have no idea about the correct size, ET etc, but it is in the back of my mind.

 

[Blobcat]

I have considered 18 inch wheels. I have no idea about the correct size, ET etc, but it is in the back of my mind.

Have a look in the fuel filler. The different size options will most likely be listed. You can go from there

 

[Jenny Tills]

Have a look in the fuel filler. The different size options will most likely be listed. You can go from there

Thanks for that, i'll check that out tomorrow.

 

[AMGeed]

I have considered 18 inch wheels. I have no idea about the correct size, ET etc, but it is in the back of my mind.

If you do decide to step down to 18" OE alloys, the ET you are looking for is
Front 34.5 and 8.5j wide.
Rear 48 and 9.5j.

A list of all the MB alloys designed for your model are in the link below. Check the price with MB first, they may be cheaper.

http://www.alloywheelsdirect.net/mercedes_alloy_wheels/cls_class_x218_shooting_brake_alloys

 

[Jenny Tills]

If you do decide to step down to 18" OE alloys, the ET you are looking for is
Front 34.5 and 8.5j wide.
Rear 48 and 9.5j.

A list of all the MB alloys designed for your model are in the link below. Check the price with MB first, they may be cheaper.

http://www.alloywheelsdirect.net/mercedes_alloy_wheels/cls_class_x218_shooting_brake_alloys

Hey, thanks for that, thats brill. Cheers!

 

[Jenny Tills]

Thanks for everyone's advice.
I think i'm going to go for a nice new set of 18s, and pray i haven't wasted yet more money!
Cheers.

 

[AMGeed]

Thanks for everyone's advice.
I think i'm going to go for a nice new set of 18s, and pray i haven't wasted yet more money!
Cheers.

You can always advertise your 19" alloys on the forum once you have your new wheels fitted.

 

[Jenny Tills]

You can always advertise your 19" alloys on the forum once you have your new wheels fitted.

That's an idea....
Thanks.