2010 BMW 5 Series N52B30/N55B30 (F10)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump failure (N55)
• Valve cover gasket oil leaks
• Electric water pump failures

First checks

• Inspect oil leaks around valve cover and oil filter housing
• Check HPFP operation especially on early N55 engines
• Verify condition of plastic coolant 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

• The 2010 535i is the first model year with N55 turbocharged engine replacing the naturally aspirated N52 in most markets.
• Manual transmission availability was restricted and limited mostly to European specifications.