Both myself and my Father-in-Law have a 1999 C240. At my last service interval I had the spark plugs changed - I believe 12 !</P>


My Father-in-Law argues that he only had his car only has 6 spark plugs - can anyone resolve the argument ?</P>

 

the M112 engine (V6) has 12 spark plugs.

 

Yep 12 plugs - 6 cylinders