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.

A 2012 BMW 5 Series is now 14 years old, so an average example has covered around 189,000 miles. An early car in the generation · most of the launch teething issues were still being worked through, so recall completion and dealer rectification history matter. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2012 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2012 BMW 5 Series is 14 years old, so an average example has covered roughly 189,000 miles. At that mileage 3 of the documented faults are already due, so check those first.
Documented onset mileage is at or below the ~189k miles an average 2012 car has covered.
Valve-cover and oil-filter-housing gasket leaks.
Electric water pump / thermostat failure.
N20 timing chain wear on 4-cylinder cars.
Age, electronics and build-related issues that are not mileage-driven.
iDrive / electronics and battery-drain gremlins.
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carComfortable and capable, but budget for oil leaks and cooling repairs.
Yes — early N20 chains can wear; check for rattle and service history.
The N55 straight-six (535i) is smooth and robust; diesels are efficient but pricier to fix.