2015 BMW M3 S55B30T0 (F80)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump failures
• Carbon buildup on intake valves (direct injection)

First checks

• Inspect turbocharger operation and wastegate
• Check VANOS timing functionality

Before replacing parts

• 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 and tuning can vary slightly by market emissions regulations, especially in timing and power output.
• M3 F80 sedan was replaced in 2019 by the G80 generation.