Overview
Community orientation
The E85/E86 Z4 roadster and coupé with the N46 four and the M54 / later N52 sixes, rear-wheel drive. The Z4 M's S54 is outside this catalog. Editorial summary, not a reliability rating; per-configuration facts are below.
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Filtered: M54 · 2.2–3.0L petrol (M54).
Known issues
Sorted by severity. Tap an issue to reveal its symptom, repair and what to check.
Engines & reliability
Tap a row to filter the issues to that engine.
Pre-purchase checklist
Documents
- ☐Check service history for repeated coolant top-ups
Maintenance
Key service intervals — vary by engine and driving conditions.
ItemIntervalCost
Engine oil and filter12,000–15,000 km
Cooling-system refresh120,000–150,000 km