Reliability Guide

Common Problems with the
1999–2003 BMW M5

We've identified 1 known issue that can affect the 1999–2003 BMW M5. 1 of these are serious faults that could be expensive to repair.

1
Known Issues
1
Serious
0
Moderate
0
Minor

All Known Issues

Timing Chain Guide Wear / VANOS Issues

SeriousEngine

E39-era M5s can suffer from worn chain guides, VANOS solenoid issues, and heavy oil leaks as the S62 ages. Preventative mechanical work is often the difference between a great car and a disaster.

Est. Repair Cost: £1,500–£4,000
Warning Signs:

Rattle on start-up, Top-end noise and oil seepage around the front of the engine

What to Inspect:
  • Look for timing-chain or VANOS invoices
  • Inspect the underside for major oil leaks
Verified by IsItAGoodCar Research Team

Buying Tips for 1999–2003 BMW M5

  • On the E60 V10, demand proof of rod bearing and throttle actuator replacement; without this, engine failure is a matter of when, not if.
  • On the F10 V8, check for extreme oil consumption and coolant leaks from the turbo lines located in the hot 'V' of the engine.
  • Inspect the incredibly expensive brake discs on all models; carbon-ceramics (gold calipers) must be weighed to check for wear.
  • Test the M xDrive system on the F90; ensure it switches seamlessly to 2WD mode and there is no binding from the transfer case.
  • Verify the 1,200-mile running-in service was stamped correctly, and check the overall service history for regular diff and gearbox fluid changes.
  • Check the suspension for knocking or leaking adaptive dampers, as the M5 is an exceptionally heavy car that destroys suspension bushes.