Overview
Community orientation
The G22 4-Series — Coupé (G22), Convertible (G23) and Gran Coupé (G26) — with the modular B48/B58 petrols and B47/B57 diesels, ZF 8-speed automatic. Editorial summary, not a reliability rating; per-configuration facts are below.
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Filtered: B47 · 2.0L diesel (B47).
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
Test drive
- ☐Assess shift quality and D/R engagement when warm
Maintenance
Key service intervals — vary by engine and driving conditions.
ItemIntervalCost
Brake fluid~2 years
Engine oil and filter12,000–15,000 km