2015 BMW 640i N55B30 (F13 (Coupe) / F12 (Convertible))

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• High-pressure fuel pump wear
• Turbocharger wastegate rattle
• Timing chain tensioner wear

First checks

• Inspect turbocharger for rattling noise
• Check oil consumption and leaks
• Verify condition of cooling system hoses and water pump

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

• US market 2015 640i models equipped with xDrive AWD, global markets often RWD
• Minor power output and emissions system variations depending on market mandates