My engine has a bad piston ring in left side in my 2001 mercedes car
what i do with investing a engine for that car
You can replace the bad piston ring with new ones by referring to your auto repair manual. You can also take your car to a local Mercedes dealer or a mechanic shop and have the engine fixed. You can read more on this, at http://www.ehow.com/how_4486239_replace-car-piston-rings.html.