BMW's high-revving naturally aspirated M3 V8, celebrated for its character but carrying a well-documented rod bearing concern.
The S65 is a naturally aspirated 4.0-litre V8 built specifically for the E90/E92/E93 M3, revving to over 8,000rpm.
The S65 has a well-documented rod bearing wear issue, and BMW extended warranty coverage on this specific fault for affected model years.
The dual throttle actuators can fail, triggering limp mode and a check-engine light.
The engine's oil pump gears are a known wear item that can contribute to oil pressure issues.
Worn solenoids can cause rough idle and reduced performance.
Have rod bearing condition and oil pressure checked before buying or as part of major servicing — the single most important S65 health check.
Full BMW-specific diagnostic scan to identify the exact source of the issue rather than guessing.
Checking known leak points, wear items and service history against the S65's specific weak spots.
Confirming any rattle, misfire, or rough-running symptoms under real driving conditions.
Rod bearing wear is the S65's most significant known issue, serious enough that BMW extended warranty coverage on affected model years.
The S65 was used in M3 Sedan/Coupe/Convertible (E90/E92/E93).
A characterful, high-revving engine that needs proactive maintenance — rod bearing condition should be a priority check on any used E9X M3.
Book a diagnostic with our BMW-trained technicians in Merrimu — serving Melton, Bacchus Marsh, and Melbourne's western suburbs.
