2017 BMW 5 Series N63B44O0 (G30)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump issues
• Timing chain wear in early N63 versions
• Carbon buildup on intake valves

First checks

• Inspect intake manifold and valve covers for oil leaks
• Check VANOS system for fault codes
• Review service history for oil changes

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

• N63B44O0 is the main engine code for the 2017 550i globally; slight regional tuning differences exist for emissions compliance.
• Manual transmission was not offered in 550i 2017 model year; automatic only.