I have no idea whar to do, just parking tickets comes everyday. Jaguar XF 2009 2.7 it won't start or the ignition not turning on even the key is inside. Nothing, neither ignition, nor lights, any buttons inside are not working. The lights on the front were on, same as in the back, not the genral lights, the ones underneath the short and long lamps, so I had to take off the battery. I've changed key battery still nothing. I'm desperate for any help.

 

You definitely need a fully charged battery to get any modern Jaguar to start but it sounds as if the Smartkey is not being recognised by the vehicle and the security system has not been deactivated. Have you tried docking the key?





Graham

 

No sir, I haven't. On my way to try it.

 

I have pretty low battery almost dead I think, because puting back on the positive(+) wire on the battery or scratching it makes no sparkles.

 

That doesn't sound good. Battery tested and/or replaced has to be the next move.

Graham

 

Remember also that a battery -- even one which is "fully charged" -- may run lights but not have enough power to even pull in the starter solenoid. If the lights dim but there is no sound, this is pretty much an indicator of this. if charging doesn't solve it, the battery may be beyond help. You will need to do a battery load test to know (any shop and most parts places cam do this for you).

 

Thanks to everyone. The battery was completely dead. Btw I have and issue with screen of the radio, whenever I start the car it keeps reloading with Jaguar starting screen and turns on after 5-30min just randomly and I have no idea what is the issue or what part should I change. I was offered to change bluetooth module which I did and nothing changed.

 

Good to hear it was just the battery. Modern Jaguars are very sensitive to battery condition and state of charge. If the use the vehicle regularly, this won't be an issue but if you uise it infrequently you should consider using a battery tender. Most of us choose one from the CTEK range.

Throwing parts at a Jaguar soon get expensive and is not the best way to troubleshoot issues. A flat battery can cause all kinds of weird electronic effects and your screen may be a result of this. A "hard reset" puts all settings back to default and may help. It is done by disconnecting the battery leads and touching them together for twenty seonds or more to discharge storage capacitors. Be aware this loses settings such as window travel limits and radio presets so you should consider carefully before doing it.

Graham