Mercedes-Benz A-Class W169 — Reliability

W169 2005–2012 1 engine

Reliability Summary

Engine M266 — 88/100 BEST
Known Issues 2

Engine in this model

BEST 88

M266

M266 1.5/1.7/2.0/2.0 Turbo (A-Class W169, B-Class W245)

Mercedes' transverse four-cylinder petrol of the A-Class W169 and B-Class W245 - 1.5, 1.7, 2.0 and 2...

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Known Issues Across All Engines

Issue Engine Severity Onset
Timing chain and tensioner wear - cold-start rattle (reports disputed) M266 moderate 97,000 km – 161,000 km
Fuel-tank vent line leak - fuel smell (recall, July 2010 builds) M266 minor —