Why does the car not start sometimes. Then when you try again it starts. Also engine light was on yesterday then not today?

It is most likely a faulty starter selinoid. or a loose connection at the battery or the selinoid.

Did you ever find out what was wrong? I'm having the same problem

jaguar xf 2009 supercharged. Every single time i get in the car the engine start button. i press and nothing. keep pressing and after giving up the car starts up

i am having the same trouble but i have nothing is working

i got it to go by pressing harder on the bracks

I had the same problem, if I leave it overnight it starts up, drove it for an hour or two turn engine off try to start again, it won't start up, then on the dash all warning messages comes up. Took my car to a jaguar specialist and they told me the rear fuse box is mouldy and it cause the immobilizer to get faulty. Is this possible?

2009 xf jaguar wont start just making clicking sound replaced the battery still wont start ??? Any suggestions