The F32/F33/F36 4-Series — Coupé, Convertible and Gran Coupé — with the N20/B48 fours, N55/B58 sixes and N47/B47/N57 diesels, ZF 8-speed automatic; LCI in 2017. Editorial summary, not a reliability rating; per-configuration facts are below.
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Filtered: N20 · 2.0L petrol (N20).
Known issues
Sorted by severity. Tap an issue to reveal its symptom, repair and what to check.
HighOil pump drive chain wear (N20)built before 2015
MediumOil filter housing gasket leak (N20)
MediumValve cover / gasket oil leak (N20)
Engines & reliability
Tap a row to filter the issues to that engine.
Pre-purchase checklist
Documents
☐Check service history for repeated coolant top-ups
Test drive
☐Assess shift quality and D/R engagement when warm
Maintenance
Key service intervals — vary by engine and driving conditions.