Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Jaguar XK8 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Engine Ignition: Specifications
General Specifications
| Item | Specification |
|---|---|
| Firing order | 1-5-4-2-6-3-7-8 |
| Spark plug type - Vehicles with supercharger | NGK-IFR-5N10 |
| Spark plug type - Vehicles without supercharger | NGK-IFR-5N10 |
Torque Specifications
| Description | Nm | lb-ft | lb-in |
|---|---|---|---|
| Spark plugs | 27 | 18 | - |
| Ignition coil-on-plug retaining bolts | 5 | - | 44 |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.