Where are the spark plugs on a 1996 Jaguar XJ6 4.0?

On a 1996 Jaguar XJ6 4.0, the spark plugs are located on the engine's cylinder head, beneath the ignition coils. To access them, you will need to remove the engine cover and then detach the ignition coils to reach the spark plugs. Each cylinder has its own spark plug, positioned in a straight line along the top of the engine. Make sure to use the correct tools and follow safety precautions when servicing the spark plugs.