XKR (X150) control screen not working

[a8hex]

Yesterday the control screen in the centre console of my XKR wouldn't play ball. It just displayed the XKR logo you get when you first enter the car and wouldn't boot up into the normal mode where you can control everything. Stopping the engine and restarting it quickly didn't clear things. After I'd parked up and taken LadyB8 for tea and cakes everything was OK again.
Has anyone else seen this?
Any suggestions of how to get out of it?
The rest of the electronics all seemed to be working, parking sensors, trip computer etc... just no control screen and so no seat warms (LadyB8 not happy ... ... ) etc.

[8bit]

Battery. Recommend changing yours for an AGM type (Varta do one in the correct size/type for an XKR), they seem to behave better in these cars. You could also get a conditioner if you keep your car garaged and don't use it much.

[a8hex]

It's normally on a conditioner when in the garage, but I admit it hadn't been last week. I'll pop it back on
Cheers

[8bit]

Hmm, if even a week off the conditioner is enough to cause it not to hold charge then I'd still say it's on its' last legs. If the screen does work better after the car's been on the conditioner for a while then you have your culprit.

[a8hex]

It's only happened the once for me. When I stopped the engine and parked up for 20 or minutes and tried again everything was OK, a quick stop and start wasn't enough to clear things, but I'm not sure that it would have been long enough to restart the control system anyway.
It's always difficult to troubleshoot things that don't happen predictably. I was wondering whether anyone else had seen the same issue and whether anyone had found a trick to get the system back online.

[8bit]

I have had that happen to me once, last year sometime. I was having other, random electrical-type issues such as driver's side wing mirror recalling to random positions on seat memory, transmission sometimes failing to rev-match on downshift, these are all known symptoms of tired batteries.

I don't have a garage big enough for my Jag (yet) so couldn't run a conditioner, my old battery had Jaguar stickers on it so I figured it was likely to be the original supplied in the car back in 2008 so I just got a Varta AGM type (http://www.tayna.co.uk/G14-Varta-Start-Stop-Plus-AGM-Car-Battery-595901085-P8424.html), changed it, gave the car a good run to charge it up and I've never had any of these issues since.

[a8hex]

Thanks
One battery related message the car does give me from time to time is that if I have the radio(etc.) on with the engine switched off after a few minutes it gives me a message that it will shutdown after 3 minutes due to low battery. Its done this ever since I bought the car. The dealer told me I'd need to take the car out for a longer run as the self calibrating system took quite a while to set itself properly. Of course this didn't make any difference :-)

[8bit]

Hmm dealer wasn't really on the ball then, he missed an opportunity to try and sell you a new battery at a healthy markup

[a8hex]

8bit said:

Hmm dealer wasn't really on the ball then, he missed an opportunity to try and sell you a new battery at a healthy markup

Nahhh, I'd only just bought the car from him, so he was ducking the opportunity to buy me a new battery.

[Piersman2]

One of my XJRs used to do this, but only on cold mornings. It would 'unfreeze' after a while, the length of time being related to just how cold it had been overnight.

[geoffers360]

Looks like I need to change mine. Is it just as straight forward as removing the old battery and installing the new or do I need to be concerned about battery "coding"?

Thanks

[a8hex]

Not sure with modern Jags, but I remember with LadyB8's last Merc that it also meant re-programming all the electric windows so they knew where up was.

[8bit]

There are a couple of things to do, nothing terrible. See here - http://www.jaguarforums.com/forum/xk-xkr-33/sequen...