2007 JAGUAR XK AJ-V8 Gen III 4.2L/AJ-V8 Gen III 4.2L Supercharged (X150)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain tensioner wear causing rattle
• Supercharger pulley wear (on forced induction models)

First checks

• Inspect timing chain and tensioner noise
• Supercharger belt and pulley condition (for supercharged versions)

Antes de cambiar piezas

• 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

• Primary engines in 2007 XK were the 4.2L AJ-V8 Gen III naturally aspirated and supercharged variants, used globally with market-specific emissions calibration.
• No manual transmission offered for 2007 XK, all models equipped with 6-speed automatic transmission.
• Engine oil capacity includes filter change service fill.
• Cooling system capacity varies slightly by market due to climate control packages.