I own a ML 320 it has the 3.2L V6 engine ( I don't know the official Mercedes engine designation, sorry). But anyway my my question the wrench use to unscrew the cap of the oil filter, it looks like a regular round filter wrench you could buy at the regular auto shop. Does any one know if it is just a regular filter wrench and if so what size is it. I called the Mercedes dealer and they said it is about $27 dollars, is it a special size wrench or is there a less expensive subsisted.

thanks
ben

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Silver Honda Accord, 2006
Silver G500, 2003
Silver SLK-320, 2002
Black ML-320, 2000
Bule Porsche 993 Targa , 1997
Silver Merkur XR4Ti, 1987