Is the C220 a Renault engine?
No, it’s not. You’re quite right that the 1. CDI engine in the A 180 model is derived from Renault’s long-serving dCi engine, but the 220 CDI unit is Mercedes’ own 2. Mercedes A-Class and Renault engines The A-Class is the most iconic model to have incorporated Renault engines. A-Class 160 CDI / A180 CDI (W168, 1997–2004) : These early A-Class models used Renault 1. Ci diesel.