One problem related to wiper has been reported for the 2004 Jaguar XJR. The most recently reported issues are listed below.
It was raining heavily and we were on the freeway. Suddenly the 2 wipers started to beat wildly and the left wiper jumped off the windshield. The right one continued to wipe at high speed; there was no way to stop without causing an accident as the traffic was heavy. Suddenly the left wiper restarted and went underneath the right wiper and a few minutes after that the right wiper stopped completely. We are the original owners of the car which was bought and always serviced at the local Jaguar dealership.