2010 BMW 328i N52B30/N53B30 (Europe only) (E90)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain guides wear (especially post-2007 N52 engines)
• Water pump and thermostat failure
• Electric water pump seals leakage

First checks

• Inspect timing chain guide condition
• Check water pump operation and coolant leaks
• Verify oil leaks around valve cover gasket and oil filter housing

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 N53 engine with direct injection was primarily offered in European markets due to fuel quality requirements.
• North American 2010 BMW 328i mostly used the N52B30 engine with port injection.
• Oil capacity includes filter change for accurate maintenance planning.