Mercedes-Benz CLK W209 — Reliability

W209 2006–2009 1 engine

Reliability Summary

Engine M156 — 61/100 CAUTION
Known Issues 5

Engine in this model

CAUTION 61

M156

M156 6.2 V8 AMG

AMG's hand-built 6.2 naturally aspirated V8, badged 63 AMG, in the C 63, E 63, CLK 63, CLS 63, S 63,...

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Known Issues Across All Engines

Issue Engine Severity Onset
Cylinder head bolt failure (engines up to serial 60-060658) M156 critical 129,000 km – 209,000 km
Intake camshaft and hydraulic lifter wear M156 high 113,000 km – 193,000 km
Rising oil consumption M156 moderate 97,000 km – 161,000 km
Camshaft adjuster and sprocket wear - cold-start rattle M156 moderate 97,000 km – 145,000 km
Intake manifold centre plate / runner wear M156 moderate —