Having read a few posts like:

"Help my batteries flat and the trunk is locked and I cannot get into it..............".

I went looking at our "newish" 01 S type 3ltr SE today. I am familiar with the +ve posts under the bonnet/hood/place where engine lives, of the X300, BUT, no such delights on the S.

Sooooo, in the engine bay fuse compartment are numerous "not used" positions, HOWEVER, these positions have a single male spade post standing proud. Thoughts abound, so probed with the trusty DCM, car keys IN MY POCKET, and surprise, surprise, they are 12v HOT, SWEET.

Made up a simple wire with an insulated spade on one end, and suitable adaptor on the other end (that will be your sorting based on the battery charger you have), and connected the battery charger, began charging merrily.

Now, based on that if you got a flat battery, and for some reason cannot get into the boot/trunk/rear compartment, a 12V supplied via these terminal will "power up" the car for access purposes etc.

Also a good point to charge the battery without messing with the stuff at the rear.

YOU CANNOT JUMP START VIA THESE, THE WIRES ARE TOOOOOOO SMALL.

Photo shows the wire I made attached, and the other 2 terminals are also 12V HOT, so you do have a choice of 3.

 

According to joycesjag, there is a +ve stud behind the right wheel liner.

Still, this is far more convenient for access.

The 3 terminals could be fed in parallel for greater capacity.

The other alternative is to extend the stock +ve stud with a short cable to a bolt screwed through the wheel arch liner.

Thought ypu were on a 4000km jaunt.

 

Nice work but not needed.

Jaguar has already provided a place to attach jumper cables when the car is dead.

Please look under the passenger side front wheel well liner. Even has a nice red plastic protector cap!!


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Great work Grant.

I had never thought of checking into this option.

 

I know the wheel liner one is there, too hard for me.

OK if I had to jump the thing that is the only way, no arguement. have not jump started a Jag for 30+ years, battery minders are a wonderful invention.

For simple maintenance of the battery, as I do regularly, on all the cars, this just made sense. Plus leaving the bonnet open has no lights/modules/whatever, doing anything.

 

Yep, but too hard to get to for me, and add the fact I am lazy, this is easier.

Did the jaunt, 4258kms. X300 now has 200153kms on it, we have put 60000+ in 3 years. Temps of 44c+ in some areas, damn hot, glad the fridge in the boot works well, beer stays nice and COLD. Had to be home for New Year, wife MUST be in OUR home for new year, its a cultural thing, and who argues with the wife???????.

 

Check your key works in the trunk lock - as it should.

Then if you have a flat, open trunk and away you go...

No electrical power is needed to use the key

 

AGREED 1000%.

However in my very short time on here I have read many a thread from all over the world about the "key dont work the trunk lock, batteries flat, what do I do".

As I say regularly: "You can take a horse to water, but you cannot make the bugga to drink".

 

So long as the opening mechanism hasn't "frozen." Mine did. Had to jiggle it a number of times and put more force on it than I was initially comfortable doing, but it eventually opened up.

 

How true, you can't make a horse drink. However, if you can get the horse to put on a swimsuit, you've really got something there.

All seriousness aside, great idea for hooking up a battery charger. As far as the emergency port in the wheelwell, how difficult is the access? Does the wheel need to be removed or is there enough room to snake your hand in there?

 

What emergency port?

 

I dunno.

I recently had the wheel liner pulled back to replace the fuel filter on the Black Beast, and did NOT see that Red post. Maybe I was not concentrating on that item, as the fuel filter was the prime reason to be in there.

The Silver car has a battery minder plugged in to that fuse block terminal now. When the wife uses the car (maybe once a week or less) she simply unplugs the mains power under the bonnet, and replugs the same when she returns home. Battery is being taken of, no brain power on my part involved.

The now redundant X300 is also plugged into the mains supply.

LAZY that I am, I also have NOT checked the Black Beast boot lock operation. I must do that when I finish this beer. Damn its HOT again down here.

 

Oops, my bad, mixing up my terminology. For the electrical connection in the right front wheel well, I should have called it the +VE stud.

The emergency port in the same wheel well is in an acrylic decanter. (Glass couldn't meet crash standards.) This emergency port was thoughtfully provided for those times when the car is up on the lift and the mechanic is explaining how expensive your latest repair will be.

 

Sure, rub it in. It's FREAKIN' COLD here (-20F today).


So, I infer from your post that your "battery minder" is a trickle charger that you keep the vehicle plugged into whenever parked at home, correct?
Do you need to connect the negative somehow as well? What are the other particulars of your minder, if you don't mind sharing. Thanks.

 

The fuel filter is behind the left front wheel well liner.

The AUX battery post is behind the right front wheel well liner.
When sitting in the drivers seat.
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No problems.

The minder is a 900Ma unit, with a part # of AC150, which probably means zero outside the colonies.

It comes with a loom with 2 battery clips, and a second loom for "hard wiring" into the car. I used the second loom, and attached an insulated spade terminal to the Red wire, and attached that to the live "make spade" in the fuse box, threaded it through the inner workings, so the lid could be closed. Attached the Black wire to a chassis earth point, which I found near the radiator bracketery. The other end of that loom is a 2 pin "keyed" plug, that attaches to the loom of the charger. The charger unit is in the mains power cable, and simply plugs into the 2 pin when needed.

The battery stays connected.

When it cools down tonight, currently 46 in my shed, I will photo it and edit this post.


The packaging


The unit


The keyed plug

Thats all I snapped, its still 40c outside, and its 10pm, so it sounds like a HOT one again tomorrow.

 

BUGGA.

Thats why I did not see it. For some reason I thought I read it to be on the LH side, oh well, memory is definately not what it was.

Still awkward, with the screws etc needing removing to get that liner to slide away.

A good chunky +ve post at the fuse box makes more sense, like the earlier Jags.

One day I may be tempted to dive into the RH side liner and have a look see, but right now I have no reason to do so.

 

A quick and tentative suggestion: I have one of those portable batteries for starting cars with dead batteries. It has a 12v port on it like the 12v ports in the trunk and center console of my s-type. If you had or made a double male electrical cable to connect charger to car, wouldn't it at least allow you to get enough 12v to the car to get the trunk open?

 

Yep.

That was my original reason for doing what I did.

Jump starting a car is simply not part of my work ethics. If the battery is flat, charge it or replace it. Way too many electrical things to go hissy on newer cars.

With a charger, or even this minder attached, you will have enough "juice" to use the fob and open the boot to give proper access to the battery.

 

Hello Everyone,
So I have the same problem....Battery is dead, trunk locked. having got the car used I am just finding out that the key has been replaced and no longer works on the trunk. I have located the passenger side positive terminal in the wheel well, per clubairth1 picture. Thanks for the pic.. it was a life saver. My question though is where do I hook the negative cable on my charger. Should it go on the chasis? Any help would be appreciated. Thanks!