Smart ForTwo W450 — Reliability

W450 2003–2007 1 engine

Reliability Summary

Engine M160/M160E — 40/100 AVOID
Known Issues 5

Engine in this model

AVOID 40

M160/M160E

0.6-0.7 Turbo

Original Smart engine. Tiny, turbocharged, temperamental. Clutch actuator = wallet killer. Fun when ...

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Known Issues Across All Engines

Issue Engine Severity Onset
Clutch actuator failure M160/M160E critical 30,000 km – 80,000 km
Head gasket failure M160/M160E critical 60,000 km – 120,000 km
Overheating (rear-mount cooling) M160/M160E high 40,000 km – 90,000 km
Turbo failure M160/M160E high 50,000 km – 100,000 km
ECU / immobilizer fault M160/M160E moderate 60,000 km – 130,000 km