The OE spec is 245/45 17 XL
Alternative is 245/40 18 XL front with 265/35 18 rear XL.
Up to you if you wish to change aspect ratio. But if you are softer ride then different tyres do have different ride characteristics. But I haven’t perceived any differences in tyres
I'm with 245/40/18 front and 265/35/18 rear
I want to put 17inch with a bit bigger tyres
Car will be more comfortable
I think to fit 245/45/17 front and rear
Or 225/50/17 front and rear
But my question is CAN I FIT THAT SIZES
Is everything will be OK with suspension or they will touch somewhere on it
If you stick to the standard tyre and wheel combinations as stated on the fuel flap then you shouldn’t have a problem as long as your 17 wheels have the correct offset.
Comprehensive wheel fitting chart and guide for Mercedes. Information on tyre and wheel sizes, offsets and PCDs. Find out which wheels will fit your vehicle