2011 BMW Z4 N52B30/N54B30 (E89)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High pressure fuel pump failure on N54 engine
• Valve cover gasket leaks
• Electronic throttle body issues on some turbo models

First checks

• Inspect vacuum lines for turbo models
• Check VANOS unit operation
• Inspect cooling system hoses and expansion tank

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

• 2011 marked a mid-cycle update with enhanced engines and improved electronics in some markets.
• Turbocharged versions (N54, N55) were not available in all countries due to emissions regulations.