I am told the C-class engines above are all the same but with different power outputs. Is this true? If so, how is the power output changed from one engine to the next and of course, can you 'upgrade' with some magic chip?
The '200' and '220' figures bear no significance to the engine displacement - the engines are 2.1L 4 cylinder diesels. The 200 being the lower output of the two designations.