2009 BMW 5 Series 550i N62B48 (E60)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump wear
• Valve stem seal leaks leading to oil consumption
• Electronic cooling fan relay failure

First checks

• Inspect VANOS system operation
• Check for oil leaks around valve cover and oil filter housing
• Verify condition of water pump and thermostat

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 N62B48 engine replaced the earlier N62B44 by increasing displacement to 4.8L.
• Some markets may have differing emissions equipment affecting exact engine management.