2017 BMW 540i B58B30M0/N52B30 (limited markets) (G30)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump issues in earlier B58 engines
• Coolant leaks from auxiliary water pumps
• Timing chain tensioner wear in some N55-related engines (less common in B58)

First checks

• Check for oil leaks around valve cover and turbo oil feed
• Inspect water pump and coolant hoses for leakage
• Check condition and wear on variable valve timing components

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

• 540i in 2017 replaced the N55 turbo inline-6 with the updated B58 engine in most markets.
• Exact specification and features may vary based on country emissions rules and fuel quality.
• Mild variations in transmission availability based on market priorities.