EngineMedium
Valve-cover and oil-filter-housing gasket leaks.
- Typically appears
- 70,000+ miles
- What to inspect
- Look for oil residue on the block and around the filter housing.
2011–2016 BMW 5 Series — common problems & known faults
The F10 5 Series is a refined executive saloon; oil leaks, the electric water pump and (on N20) timing chain are the checks.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
Known faults to check
CoolingHigh
Electric water pump / thermostat failure.
- Typically appears
- 80,000+ miles
- What to inspect
- Check for overheating history and coolant warnings.
EngineHigh
N20 timing chain wear on 4-cylinder cars.
- Typically appears
- 90,000+ miles
- What to inspect
- Listen for a rattle on cold start; ask about any chain work.
ElectricalMedium
iDrive / electronics and battery-drain gremlins.
- Typically appears
- Age-related
- What to inspect
- Test iDrive and check for battery drain.
Inspecting a BMW 5 Series?
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Generate a free checklistFrequently asked questions
Is the F10 5 Series reliable?
Comfortable and capable, but budget for oil leaks and cooling repairs.
Does the N20 have a timing-chain issue?
Yes — early N20 chains can wear; check for rattle and service history.
Which engine is best?
The N55 straight-six (535i) is smooth and robust; diesels are efficient but pricier to fix.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.