Cika857

I have a set of wheels+snow tires from a 2018 C300 4matic - just picked up my 2023 C300 4matic last week.
Does anyone know if my old set will fit on the new car? Or just the tires and not the wheels?
Any help is appreciated!

ttoth1989

bolt pattern should be the same. it should fit depending on the offset also.

jastleymb

Go to site https://www.wheel-size.com/

It is a comprehensive site to show fit possibilities for practically every car (though it's targeted for Europe, so you have to scroll through the various models to find the ones sold in US). Things to look for are: bolt pattern and bolt size, offset. There is a calculator to compare two sets which shows for your case the old snow set will fit just fine

In my case I have an A250 AMG, so 17" snow rims won't fit over the brakes. If you don't have the oversized brakes you are OK.

PS: bolt torque should be 93 ft-lb

gchriss70

you want to get rid of your old wheels lol?

jastleymb

I posted about website wheelsize earlier. They don’t have the 2023 C300 entered yet, but all the Merc A, B, C, E class vehicles since at least 2015 use the same centerbore size, bolt pattern and bolt size. It’s unlikely they would have changed it for 2023 as there appears to be no rationale for doing so.

I did notice that the 2023 C300 uses different width tires front/back so that may be for handling reasons. Likely not a barrier if what you doing is putting on snow tires.

You could just ask your dealer’s parts department if they would use the same wheel/rim set for a new C300 as for last year’s.