2016 BMW 5 Series 535i N55B30 (F10)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump failure
• Coolant leaks from water pump thermostat housing
• Timing chain wear and rattling in early versions of N55

First checks

• Inspect for oil leaks around valve cover gasket
• Check turbocharger boost response and performance
• Verify transmission fluid service history

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

• N55 engine is the primary petrol engine for the 535i globally in 2016, with minor market-specific emissions calibrations.
• Diesel variants exist globally but differ in engine codes and specifications.