2019 BMW 340i B58B30M0/B58B30M1 (G20)
G20 / Sedan / Global with variations in US, Europe, Asia
B58B30M0B58B30M1Exact year/trim recordSilver
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- High-pressure fuel pump wear in early production models
- Valve cover gasket oil leaks
First checks
- Turbocharger boost leaks
- Cooling system integrity
- Oil consumption
Before replacing parts
- 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
- US models use B58B30M0 engine variant with slight power tuning differences
- European models rated slightly higher power output due to different testing standards
- Oil capacity includes filter replacement, important to use specified oil grade