2005 PORSCHE Cayenne M48.51/M48.50 (957)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Coolant reservoir leaks
• Timing chain tensioner issues on early V8s
• Transfer case oil leak

First checks

• Inspect engine for oil leaks around timing chain area
• Coolant system pressure test
• Transmission fluid condition

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 2005 Porsche Cayenne is the first major model year with minor updates from the 2003 launch.
• Engine options and specs vary slightly by region; US models usually have stricter emissions requiring different engine calibration.