Hi Stewart.
Not much to report really.
The garage i took it to looked all over the car but couldn't find anything wrong with it. They did hear the drone though and agreed that it seems to be staying in to high a gear for too long, causing the car to labour. They suggested I contact Jaguar direct to see if there is a software update for the gearbox. I contacted Jaguar today and they said there might well be an update but they couldn't tell until they plugged it in. £168 just to check was what they quoted. I'm still thinking about what to do next but it seems my only option.
Will keep you informed.
Thanks for the response. My car is in at the garage tomorrow, so If they find anything, I'll obviously let you know. The garage where I bought it had it back but couldn't find anything. To be honest, I'm not sure they even looked, so i took it to my local garage and they did find a couple of half tightened bolts holding on the DPF but i t hasn't cured the problem. I taking it to an independent Jaguar garage tomorrow, to see if they can figure it out. I'll keep you posted.
Regards Jon.