2001 BMW 5 Series M54B25/N42B20 (select Europe) (E39)
E39 / Sedan / Touring / Global, including North America, Europe, Asia
M54B25N42B20 (select Europe)Registro exacto de año/versiónGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Rear subframe cracking
- Cooling system leaks (water pump, expansion tank)
- VANOS system issues causing rough idle
First checks
- Inspect rear subframe mounts for cracks
- Check cooling hoses and radiator for leaks
- Assess VANOS operation and solenoid function
Antes de cambiar piezas
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- Some regional variations exist especially in engine types and emissions controls.
- The 530i badge typically corresponds to 2.5L inline-6 engines worldwide except limited European versions using smaller engines.