2007 BMW Z4 N52B30/M54B30 (E85)
E85 / Roadster / Global / with market-specific engine variations
N52B30M54B30N52B25N52B25TURegistro exacto de año/versiónGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Coolant expansion tank leaks over time
- Valve cover gasket oil leaks
- Rear subframe mounting points corrosion (especially in winter climates)
First checks
- Inspect coolant system and expansion tank
- Check for valve cover gasket leaks
- Verify condition of suspension bushings and rear subframe mounts
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
- 2007 was the end of the first generation E85 Z4 before the facelift in 2009 with updated engines.
- Engine availability and specifications vary significantly by market, with North America mostly having N52 engines and Europe having both M54 and N52 depending on production month.