I've purchased 19's for my 2004 E500. The rears mount perfectly but I'm having some trouble with the fronts. There is a dust cap on the end of the front hubs. This dust cap has a lip that is preventing my wheels from mounting flush with the hub. If I remove this dust cap, the wheels flush up but won't clear the calipers. So, it looks like I'm gonna have to go with spacers up front. My question is for those of you that have purchased spacers for your E-class. Where did you get them? And, do I have to buy longer lug bolts after installing the spacers?

Thanks in advance.

what wheels are they? and what is the width and offset of the front wheel.

Yes you will need longer bolts if you do spacers but this depends on how thick the spacers needto be which depends on what offset the wheels are now.

Mike