M260 (DE20LA) vs OM612
Side-by-side reliability comparison
Specifications
Character
M260 (DE20LA)
"The transverse 2.0 turbo petrol in the A 220/A 250, B 250, CLA 250, GLA 250, GLB 250 and the AMG 35 models from 2018. German guides call it robust. Its known weak point is wear of the exhaust valve seats and guides: Mercedes extended the warranty in North America to 15 years / 150,000 miles and the fix is a new cylinder head. Check for misfire codes and ask whether the head has been replaced."
OM612
"Smooth, torquey 2.7 five-cylinder common-rail diesel (1999-2006): E 270 CDI W210/W211, C 270 CDI W203, CLK 270 CDI, ML 270 CDI W163, Sprinter 2.7 CDI and the 231 PS C 30 CDI AMG. Its known weak point is the injector copper seals ("black death") - cheap if caught early, expensive once the injectors seize. Good long-distance engine when maintained."