Does a jaguar xf 2.2 diesel have a timing belt or chain and at what mileage change?

The Jaguar XF 2.2 Diesel is equipped with a timing chain rather than a timing belt. Timing chains are generally designed to last the life of the engine, so they typically do not require regular replacement like timing belts do. However, it's advisable to have the chain and its components inspected during regular maintenance, especially if the vehicle has high mileage. Always consult the owner's manual for specific maintenance recommendations.