I am looking at purchasing these 17" wheels (come from 2011 w204) that have an offset of ET47 in front and ET58 in rear. I was wondering if 10mm spacers in the front and 25mm spacers in the back will be needed to make them fit correctly on my 2006 W203?

 

W204 uses m14 bolts, your w203 uses m12 bolts.

 

I am also looking at some 10 double spoke wheels that are from a 2008 E-Class. I am just trying to figure out if spacers are made in 8mm and 4mm thickness and also what kind, hub centric or non hub centric spacers? I was looking at the wheel fitting chart on Alloywheelsdirect.net, and it states that in order for these wheels to fit, I will need the offset to be 30 in the front and 35 in the rear. Any suggestions?

I saw a pic of a C-class with these wheels and it looked tight so that’s why I am considering them.

 

Without knowing what set-up came with the car (16x7 on all four, staggered set up on the sport option) it hard to tell what will fit.
One this to take into consideration with wider rims is the offset will change to keep the center-line of the rim the same. That's
why the offset on the W203 is different on the 17" staggered setup.

NP

 

The stock set up of the car is 16x7 with offset of 31 all around.

My car looks like this (pic off the internet - haven’t taken a pic of my car yet).