Reliability Summary

Engine S55 — 65/100 CAUTION
Known Issues 3

Engine in this model

Known Issues Across All Engines

Issue Engine Severity Onset
Crankshaft hub failure — pre-2016 production S55 critical
Rod bearing wear — M-car maintenance required S55 critical 60,000 km – 120,000 km
Turbo oil seal wear S55 moderate 80,000 km – 150,000 km