Just have a quick question.

I work at an Audi dealerhip, we took a 2005 Mercedes C240 4Matic in on trade with a nice set of aftermarket wheels on it. "Helo" was the brand name. Based on my research it looks like the factory offset on the C240 should have been 31. But that is certainly not a "confirmed" number. The wheels are 17X7.5. I am going to run 235-45-17 tires. Before going through the trouble of taking the wheels to a tire shop and buying the new tires I wanted to know if anyone knows for sure if they will work?

Oh, my car is a 99.5 2.8 Quattro

I figured out the bolt pattern is the same for both cars, 5X112. I just dont know for sure about the offset.

Thanks in advance for any help!