Reading some past threads it seems the XK8 temperature gauge is not sensitive enough to indicate dangerous overheating.
Does anyone make an electronic 'black box' which could take temperature sensor data from the OBDII socket?
Hopefully this would be able to detect rapid (or longer term) rate-of-change and sound an alarm!

 

I'm sure WhiteXKR will be along shortly to suggest an excellent alternative .....

Graham

 

The RealGauge from Steve is still on my to-do list.

RealGauge FAQ - TheJagWrangler

However, for the interim I use a wifi OBDII dongle with the Dash Command App on my iphone, and it works very well, since I can monitor the coolant temp realtime. For the Torque app on the Android phones, you only need a bluetooth dongle. (As far as I could gather, the Torque app is currently the best out there.)

Watching the realtime coolant temp and the guage at the same time gives you an indication of how useless the gauge really is. I would still prefer Steve's RealGauge, just because I don't need to watch my iPhone all the time!

 

Did you check out Steve's Realgauge kit?

XK8 / XKR / XJ RealGauge - TheJagWrangler

 

YES, YES and YES go to Jagwrangler-Steve's website.

RealGauge FAQ - TheJagWrangler
double click above hyperlink, you'll be happy you did!

The RealGauge easy install and will alert you, show you all about your Jag's temperature and oil pressure.
Steve has made installation super easy.

There are several other inventions of Steve's that you may have a hard time staying away from as well.

Check it out, the best thing since sliced jaguars I mean bread!
Good Luck and
Happy Motoring...

 

Please contact me if you have any questions regarding RealGauge. You can contact me on this forum or using the contact page on my website: Contact Us - TheJagWrangler

Thanks,
Steve