2018 BMW M550i N63B44M4 (G30)
G30 / Sedan / Global (primarily USA, Europe, and select international markets)
N63B44M4Fiche exacte année/versionGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- High-pressure fuel pump wear
- Carbon buildup in intake valves due to direct injection
- VANOS system wear
First checks
- Oil level and condition (synthetic oil must be maintained)
- Turbocharger boost performance
- Condition of ignition coils and spark plugs
Avant de remplacer des pièces
- 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
- M550i replaced the 550i in BMW’s 5 Series lineup starting 2017 as the new V8 flagship below the M5.
- Global markets share the N63B44M4 engine, but powertrain calibrations and emissions equipment vary by region.