2021 BMW 5 Series B48B20M0/B48B20O1 (G30)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Oil leaks from valve cover gasket
• High-pressure fuel pump wear
• Turbocharger wastegate issues (rare)

First checks

• Check for oil leaks around valve cover
• Verify turbocharger boost response
• Inspect ignition coils and spark plugs

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

• 2021 530i belongs to the G30 generation facelifted in 2020 and sold globally with minor variations.
• Some markets offer less power-tuned versions or different emissions equipment.