Try Ebay under "Mercedes lug bolts". Should be able to find set of 20 for around $30. I just put 17 " sport rims on my 98 E320. They were from a 2004 E500, so I had to get special bolts to fit. Mercedes went to a 14 mm bolt in 2003. Before 2003, they were 12mm bolts. If your new wheels are from a 96-2002 E class, you should have no problem.