Jag xk150

Here are some diagrams from a good Jaguar site.

http://www.jag-lovers.org/brochures/xk150_trader.html

The lower right page after following the link doesn't seem to actually label where the battery is located. However, I assume it is low near the firewall.

 

Behind the right front wheel (jack it up, take the wheel off)

There's a panel in the wheel well, remove it and you'll see the battery.

 

Jaguars are nearly as much fun as Ferraris to work on. Battery is #4 on the list but there is no #4 shown on the diagram.

Typical!

 

Yes I kept looking for #4... tried the 140 and 120 diagrams too. Of course I remember a Nick Mason interview where he says, "the drawings are often wrong" so there's that possibility too.

 

I think the 120 used 2 6-volt batteries, maybe the 140 did as well. XK's are wonderful cars!

 

While you're in there, clean up the connections good and install a "Battery Tender". Route the plug so you can keep it charged when not in use without going through the hassle. It won't charge a dead battery but will keep it "topped up".

I run into tricky battery problems all the time. 348 & Diablo are a couple of others that are a pain to get to.

At least with the 150 you don't have trouble getting the jack under the car.