Hello, I'm looking for a set of monoblocks amg or replicas) for my 210 E320. Will 18" bolt on or will body mods be necessary? I assume 17" shouldn't be a problem? Thanks Eric

 

I just checked Tirerack.com and they have an AMG Aero II monoblock rim for your 320 in 18 inch rims. The rims are 18"x8" with an ET 31. The recommended tire for these rims are 235/40-18. Tirerack also has an optional 18"x9" monoblock rim for the rear with an ET +35. The recommended tire size for the optional rear only rim is 265/35-18.
I use the specs at tirerack to give me an conservative idea about wheel and tire sizing. You can check wheels from other sources against these specs. The 17' rims will fit so check the reference if you decide to go with the smaller rims. There is also good thread discussing the pros and cons of 18 inch rims on earlier E-class models on this forum. It may not apply for your E320. Check it out.
Cheers, JDub

 

Eric, I misinformed you about the thread on bigger wheels. Look in Automotive forums.com-> Mercedes Benz->E Class->Bigger Wheels. This thread has some comments on it that may be of interest. The subject car was a 99 4-matic.
Cheers, JDub

 

I put E55 wheel right on my E320. I would say to get the next size down on the tires to avoid rubbing.

235 instead of 245 in front
265 instead of 275 in back