The E63/E64 6-Series Coupé and Convertible with the N52 six (630i), the N62 V8 (645Ci/650i) and the M57 diesel (635d). The N62's valve-seal oil consumption is the usual V8 watch-point. Editorial summary, not a reliability rating; facts below.
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Filtered: N52 · 2.5–3.0L petrol (N52).
Known issues
Sorted by severity. Tap an issue to reveal its symptom, repair and what to check.
Engines & reliability
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Pre-purchase checklist
On the lift
☐Inspect the oil-filter-housing and valve cover for seepage
Maintenance
Key service intervals — vary by engine and driving conditions.