Ok. I've really been putting effort in ignoring the glitches starting up on my XF. I've kept it in perfect condition, poured tons of $ into upgrades and mods to make it unique but now she's starting to show her true colors.
Issues with the rolling vents, touchscreen failures from time to time,usually resets, mileage is just BAD!! Seems its actually gotten worse since last service!!
Tire preasure system may be in trouble. ARGH!!
If it continues, she's not long for my garage. Still under warranty but with 25k and two years still on said warranty, it's a plus to trade!
Unfortunalty I'll not be replacing with another Jaguar. Probably a Lincoln MXZ hybrid. With all my traveling, I need the mileage! Still on the fence but its really not a bad car, no Jaguar, but the nicest hybrid for the $$$$. So my XK8 will become ruler of the roost!
I'm also trying to buy back my 62 E type I hade n high school. A that would be my new project car!!

 

Seems like mileage is your biggest concern. What was your expectation vs what you are getting. I am generally pleased with mpg I am getting.

 

If all your gremlins are electrical-related, may I suggest a review of you battery's integrity.

 

What mods have you done?