2020 BMW M240i B58B30M0/B58B30O0 (F22/F23)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Oil leaks from valve cover gasket
• High-pressure fuel pump issues
• Turbocharger wastegate rattle under certain conditions

First checks

• Check for oil leaks around turbo and valve cover
• Inspect timing chain noise or rattle
• Verify condition of cooling system components

Vor dem Teiletausch

• 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 2020 M240i uses the B58 engine, a successor to the N55 engine in prior models.
• Markets such as the US and Europe have slight tuning and emissions differences; oil and fluid specifications remain consistent.
• Oil capacity includes service fill with oil filter replacement, service manuals should be consulted for exact vehicle-specific requirements.