WARNING: DO NOT CLEAN 2013-2015 Mercedes Benz
3.0 Liter CD 642.850 and 3.5 Liter CD 276.957 Engines!

2013-2015 Mercedes Benz GDI Naturally Aspirated with Variable intake runner length.

These engines are equipped with a “Variable Dynamic Effect Intake Valve”.

These engines have excessive chemical puddling and will be 

damaged if cleaned with the 3C carbon cleaning machine!