Long, but bear with me. I took my 2016 XF 2.0D in for a service. After I got it back I noticed a rattling noise when idling that disappeared when increasing the revs a touch. The dealership identified a faulty exhaust damper, but had to order the part. I waited a week before calling the dealership. The person dealing with me was unavailable but would be asked to give me a call back. I heard nothing. A week or so later I called again. Again he was not available, but managed to confirm the part was now in stock. I was told I would get a call back but again I heard nothing. Eventually I drove to the dealership and the receptionist recognised me by my name, apologised and found another agent to book the car in. When the work was done I drove home. Later as I was taking the car out my daughter said there was still a noise coming from the exhaust. This noise was different, a higher frequency, and not readily audible from inside the car. I took the car back to the dealership, expecting to hear that some nut had come loose when fitting the damper. Not a bit of it. The noise, I was told, seemed to be coming from inside the back box, maybe something had come loose inside. Solution? New back box, £1100! Cause? Maybe the vibrating exhaust had loosened something. In other words, all the time no one informed me that the replacement damper had come in may have caused some (hypothesised) damage inside the back box. We’ll, no, they were not going to concede that. Does anyone have any advice? Or similar experience? They would not offer any goodwill discount other than the £98 cost of replacing the damper. I tried using an independent garage but they said it was virtually impossible to source Jaguar parts outside the main dealership. Thanks for reading this far.