Jaguar might have done a 165 point check but did they say they'd done anything about any problems they found?
As for Vx dealers a mate of mine is a technician/mechanic[not at Vx]and he had an Insignia Elite[with leather]to do on which the drivers seat heater wasn't working,so he checked it out and phoned Vx to order a new heater pad.
Parts guy:What do you want one of those for?
Him:Seat heater not working.
Pg:You won't want one of those they never fail,what you need is a module.
Him:What about the TSV that's out for them that hasn't been done on this car?
Pg: Oh,we never do those it's the module you want.
Anyway went with heater pad which didn't cure it,so ordered a module.Module arrived and it was bigger than the one on the car and had 9 plugs where original only had 3
Phoned Vx again and spoke to service dept
Service guy:What you replacing the module for?They never go wrong,we've never fitted one it's the heater pad you want we're always replacing those and some even turn up already faulty
So yet another pad ordered and he's awaiting delivery so the saga continues!