2018 BMW M5 S63B44T4 (F90)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump failures
• Electronic wastegate issues
• Carbon buildup on intake valves due to direct injection

First checks

• Inspect turbocharger operation and listen for unusual noises
• Check for oil leaks around valve covers and turbos
• Verify DME (engine control unit) software updates

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

• The 2018 BMW M5 is only available with AWD (xDrive) in most markets except some early production models; rear-wheel drive mode is selectable.
• Minor power and torque outputs may vary slightly due to market emissions regulations.