Mercedes-Benz C-Class W204 — Reliability

W204 2007–2014 1 engine

Reliability Summary

Engine M271 — 35/100 AVOID
Known Issues 3

Engine in this model

AVOID 35

M271

1.8L SC I4

Single-row timing chain stretches causing catastrophic failure. Avoid.

View details →

Known Issues Across All Engines

Issue Engine Severity Onset
Single-row timing chain stretch — catastrophic M271 critical 60,000 km – 150,000 km
Supercharger clutch / belt failure M271 high 80,000 km – 150,000 km
Valve cover gasket oil leak M271 moderate 80,000 km – 150,000 km