The E71 X6 — the first Sports Activity Coupé — with the twin-turbo N54 (35i), the N63 V8 (50i) and M57 diesels, xDrive. Editorial summary, not a reliability rating; per-configuration facts are below.
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Filtered: N63 · 4.4L V8 (N63).
Known issues
Sorted by severity. Tap an issue to reveal its symptom, repair and what to check.
CriticalTiming chain stretch (early N63)built before 2013
HighHigh-pressure fuel pump failures (N63)
HighValve stem seal wear (early N63)built before 2013
MediumHot-V heat soak: cooling wear (N63)
Engines & reliability
Tap a row to filter the issues to that engine.
Pre-purchase checklist
Maintenance
Key service intervals — vary by engine and driving conditions.