I have recently bought 07 XK convertible. I have noticed that the battery dies, Bought a new battery thinking old one was not performing but still happens. I have read about turning of everything manually before turning engine of but to no avail. i have been told it could be auxiliary alarm sounder. does anyone have any info on this please

 

Hi @rflorey and welcome to the forum. FWIW, that's not the approach to solving a quiescent battery drain, but see this to directly answer your question:

https://www.jaguarforums.com/forum/x...eft+alarm+horn