2021 BMW 750i N63B44M4 (G11 (Sedan), G12 (Long Wheelbase Sedan))
G11 (Sedan), G12 (Long Wheelbase Sedan) / 4-door sedan / Global (mainly North America, Europe, China, others with slight variations)
N63B44M4Fiche exacte année/versionGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- High pressure fuel pump wear
- Turbocharger wastegate issue (occasional rattling)
- Complex VANOS system failure in high mileage vehicles
First checks
- Inspect high pressure fuel pump noise
- Check for wastegate rattling
- Monitor oil consumption regularly
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
- Engine codes and specs refer to the N63B44M4 variant used globally but with minor market-dependent emissions calibrations.
- All 2021 BMW 750i models globally come with similar core technical specs; slight variations in options and ECU programming may exist by market.