2008 VOLVO S40 B4164S3/B4204T7 (P2)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing belt / chain tensioner wear on some engines
• DTC related to ignition coils
• Turbocharger wastegate actuator issues on turbo petrols

First checks

• Inspect timing chain or belt condition and service history
• Check for oil leaks from valve cover gasket
• Verify operation of turbocharger boost on turbocharged versions

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

• Diesel engine variants (D4164T, D5244T) exist mainly in European markets and were subject to stricter emissions controls post-2008.
• Exact engine and transmission availability varies by country and emissions regulations.