Where is radiator cap 2002 Jaguar S-type 3.0?

The radiator cap on a 2002 Jaguar S-Type 3.0 is located on the radiator itself, which is positioned at the front of the engine compartment. To access it, open the hood and look for the round cap on top of the radiator, typically marked with a symbol indicating it's the coolant reservoir. Ensure the engine is cool before attempting to remove the cap to avoid burns from hot coolant.