IsItAGoodCar
Reliability Guide

Common Problems with the
2012 BMW 5 Series (F10)

We've identified 4 known issues that can affect the 2012 BMW 5 Series (F10). 3 of these are serious faults that could be expensive to repair.

4
Known Issues
3
Serious
1
Moderate
0
Minor

All Known Issues

N47/N57 Timing Chain Stretch

SeriousEngine

The 520d N47 is the major offender, but neglected N57 six-cylinder diesels can also stretch chains. Repair costs climb fast because access is poor.

Est. Repair Cost: £1,500–£3,000
Warning Signs:

Rear-of-engine rattle on cold start, Long cranking or timing faults, Uneven idle once warm

What to Inspect:
  • Listen from the bellhousing side on startup
  • Confirm replacement with a detailed invoice
  • Prioritise cars with sensible oil service intervals
Verified by IsItAGoodCar Research TeamUpdated

EGR Cooler Leak

SeriousExhaust & Emissions

Many F10 diesels sit squarely in the UK EGR recall years. Leaking coolant mixed with soot can create a fire risk and should never be waved away as a minor seep.

Est. Repair Cost: £0 (Recall)
Warning Signs:

Coolant loss with no obvious external source, Sweet smell after a hot run, Drivetrain or EGR-related warning lights

What to Inspect:
  • Verify campaign completion against the VIN
  • Inspect the EGR area for white residue
  • Ask if the intake manifold was also checked where applicable
Verified by IsItAGoodCar Research TeamUpdated
Official Recalls & Reference Documents:

Air Suspension Failure (Touring)

SeriousSuspension & Chassis

Rear air bags crack with age, then the compressor overworks and burns out. It is common enough to be a routine Touring inspection item.

Est. Repair Cost: £400–£1,000
Warning Signs:

Rear end sitting low after parking, Compressor running for a long time on startup, Suspension warning messages

What to Inspect:
  • Leave the car overnight if possible
  • Spray the bags and lines for leaks
  • Inspect rear ride height evenly with and without load
Verified by IsItAGoodCar Research TeamUpdated
Official Recalls & Reference Documents:

Drivetrain Vibration

ModerateEngine

Worn engine mounts, propshaft flex discs, and differential bushes can create a shudder under load that feels worse on heavy UK-spec diesel cars.

Est. Repair Cost: £250–£600
Warning Signs:

Vibration through seat or centre tunnel under acceleration, Clonk when selecting drive, Shudder at motorway speeds

What to Inspect:
  • Test under gentle and full-throttle acceleration
  • Inspect guibo and centre bearing underneath
  • Check engine mounts for collapse or fluid leakage
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2012 BMW 5 Series (F10)

  • For 520d and 525d buyers, chain history and recall history are more important than spec, M Sport trim, or wheel size
  • Touring cars must sit level after standing overnight and should not run the compressor excessively on startup
  • Check comfort-access handles, soft-close doors, and boot electronics because water ingress and age can turn luxury features into bills
  • A vibration under load often points to mounts or propshaft joints rather than a simple wheel-balance issue
Check a 2012 BMW 5 Series (F10) by Registration