Mercedes-Benz A-Class W168 — Reliability

W168 1998–2004 1 engine

Reliability Summary

Engine OM668 — 58/100 CAUTION
Known Issues 2

Engine in this model

CAUTION 58

OM668

OM668 1.7 Diesel

W168 A-Class. Same era as M166 petrol. Injector issues. Head gasket concerns. Turbo failure on highe...

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Known Issues Across All Engines

Issue Engine Severity Onset
Head gasket failure OM668 high 80,000 km – 150,000 km
Injector failure OM668 moderate 80,000 km – 150,000 km