2020 BMW M760i N74B66T2 (G12)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Potential VANOS valve issues if neglected
• Turbocharger wastegate rattle reported in some cases

First checks

• Verify VANOS operation via diagnostic scan
• Inspect turbocharger for noise
• Check for oil leaks at V12 engine seals

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

• M760Li xDrive with N74B66T2 engine is the globally documented main version for 2020.
• Market-specific variations in emissions calibrations exist between US, EU, and Asian markets.