2006 BMW Z4 N52B25/N52B30 (E85)
E85 / 2-door Roadster / Global / key markets include Europe, North America, Japan
N52B25N52B30M54B30Registro exacto de año/versiónSilver
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- VANOS solenoid failure
- Cooling system leaks
- Electrical issues with ignition coils
First checks
- Inspect VANOS operation
- Check cooling system hoses and expansion tank
- Check spark plug condition
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
- Engine availability varies by market: e.g. North America offered N52 engines, some European markets had M54 units.
- Oil capacity and fluid types depend on engine variant and transmission choice.