My 2014 C250 which I purchased as a Certified Used from the local MB dealer has been great. Best car I have owned in 50 years! I upgraded the shocks to the B6 performance Bilstein for a firmer ride. Never any problems in five years.Family member looking at a 2012 C250 - M271 engine with 74k miles.
i couldnt find much online on it, are later models of the M271 pretty reliable or any major issues?
Does it have any "common" issues like timing chain stretching, anything common in the top end?They are like anything really, look after it and it will serve you well, treat it like crap and you will have a expensive vehicle when it fails.