i am selling some wheels that come from the above car. does anyone know the offset and pcd measurments for this car, because i have a feeling i have got these wrong. so far i have offset=41 and pcd=99. some how i dont think thats right, also will 18" wheels with the same pcd and offset as a mercedes 230 coupe fit an A class mercedes. please help!

Im a newbie by the way, hey

 

TTT urgent as these are on ebay

 

I have a 1997 c230 also it does the same thing. I just bought it. I am wondering if I should have. It also is intermittently idling extremely rough. Sometimes it runs perfect for a few days then all the sudden it idles really rough.