The F12/F13/F06 6-Series — Convertible, Coupé and Gran Coupé — with the N55 six and N63 V8 petrols and the N57 diesel (640d), ZF 8-speed automatic. The M6's S63 V8 is outside this catalog. Editorial summary, not a reliability rating; facts below.
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Filtered: N57 · 3.0L diesel (N57).
Known issues
Sorted by severity. Tap an issue to reveal its symptom, repair and what to check.
CriticalEGR cooler failure, fire risk (N57)EU market
HighTurbocharger wear (N57)EU market
MediumDPF clogging on short trips (N57)EU market
MediumInjector wear (N57)EU market
MediumVacuum system leaks (N57)EU market
Engines & reliability
Tap a row to filter the issues to that engine.
Pre-purchase checklist
Diagnostics
☐Scan for low-rail-pressure DTCs before the test drive
Test drive
☐Assess shift quality and D/R engagement when warm
Maintenance
Key service intervals — vary by engine and driving conditions.