manawa2

I have a 2005 C230 Sport Kompressor with stock tires:

Front 225/45/17
Rear 245/40/17

I am about to get four new tires but a friend told me that he went up in size when he changed his tires without changing the suspension or anything else but just the tires and the car handle fine with no problems. The changes were;

Stock Front 225/45/17 -to- 235/45/17
Stock Rear 245/40/17 -to- 255/40/17.

Wanted to find out if anyone has done anything similar without changing anything else and had no problems. the dealership is not helping. Any response will be appreciated. Thanks

phister

You're just increasing tire size so you wont have any problems. Just remember when you that you're speedometer is going to be off. You can go to discount tire and use their calculator. Here's the link

http://www.discounttire.com/dtcs/infoTireMath.dos

People just change tire size to either put more rubber on for a more comfortable ride or get it wider so they can have more contact to the road. Here's what 235/45/17 look on 17x7.5. It just takes away that aggressive look on our cars IMHO.

manawa2

thanks man, I actually just called and out of state Benz dealership and he told me that i can even go up to front 245/45/17 and 255/40/17 for the rear and will be fine

phister

the most i'd go upfront is 235/45, 245/45 would be alot of tire for the front.

Nokiemon

+1 on nothing wider than a 235 for the front or you will have issues.

This combo size is popular for your model is you upgrade the tire size-

Fronts- 225 40's
Rears- 255 35's

phister

theres hardly any companies that make 225/40 & 255/35 for 17s, he'd have to go with 225/45 and 255/40 or go with 235/40 & 255/40

d1no

Those sizes that you want to upgrade to probably cost more, id just stick with stock sizes so you dont potentially rub, and also itll just look less sporty with bigger sidewalls.