Dead battery issue

S

seedy

New member
Hi guys, I own a 2015 R AWD and my cousin, whilst doing me a favour of installing trickle charger cables onto the battery, mentioned that there was a small flash! Having finished the install, he then slammed the boot shut and job done...

This morning, I went to use the car and everything is dead... I have seen that by using another 12-volt battery I should be able to open the boot, but my question is, is there a main fuse on the battery that's he's likely to have blown and if so, where is it, please?

The moral of this story, if a job's worth doing, do it yourself!

Any and all help, much appreciated.

Kind Regards
CD
 
Ah well sure was done with the best of intentions

Have you opened the car yet? I’d start there with manual key from inside the fob
From there you can open the bonnet and get to the battery charger points (RHS front)
That should enable boot release with a battery connected (or even a charger)

I’d start by removing what was just connected and get back to former state and do some tests
Battery voltage
Does ignition work, etc

Seems unlikely he blew the main breaker, rather just a short that’s drained the battery

Of course if you can’t get power to open the boot then it’s recovery services
 
Hi CJ10

Thanks for your comments...

Luckily the car was unlocked and so I was able to hook up a spare battery to the jump point upfront and this allowed me to unlock the boot. Interestingly when I tried to start the car from the spare battery, I heard a familiar clicking sound, which immediately suggested a flat battery or at least a battery with not enough power.

I decided to remove the charging leads that had been installed and found that the positive had been wired-in correctly alongside the battery clamp, however for ease of installation, he'd installed the negative onto a feed that was coming from the terminal, rather than directly onto it. Once I removed this cable, the dash lit up and I was able to start the car. It seems this feed was draining the battery, rather than charging it...

Anyway, it's all good now and once again thanks for your assistance.

Kind Regards
CD
 
Glad you got there and recovered well from the situation
Clearly the ‘small spark’ was the installer setting up a nice little circuit :)
Fully recharge the battery and you’re all set
 
Afternoon folks has anyone an idea how to open the boot on a convertible, when the battery has been disconnected.. silly error but shut the boot whilst replacing the battery, not thinking about the electric switch... Is there a way of manually opening it... Or am I snookered
 
Open the bonnet and hook up a 12V supply to the under-bonnet terminals - that should get you enough juice to pop the boot.
 
Ok...so I finally found the problem causing all or my issues... Leaks into the boot and blocked drain plugs have over time allowed the water to damage and corrode the Battery Terminal Fuse box which for some reason Jaguar in their infinite wisdom decided to place at the bottom of the boot well, so any bit of water or dampness can interfere with it... I've ordered a new one and will be looking to see if I can site this anywhere else in the boot so any further accidental water ingress doesn't sent the electrics haywire again.. silly design fault which has caused so many of my problems...
 
Did you get the boot open, then? I vaguely recall someone posting that there were terminals accessible from under the boot floor.
 
Many thanks for all the help guys this forum really is a god send.. Quick update I found the leak, but in the end had to replace the Battery Terminal Fuse Box which being at the bottom of the boot well was very corroded.. That said when I connected everything up and re connected the battery. everything worked perfectly.. except for the central locking.. The car starts fine with the remote key fob but it won't lock or unlock the doors... I looked the Keyless entry module fuse which is intact and also tried the (disconnect battery / reconnect battery) thing again, but again everything works except for the central licking.. Does anyone have any thoughts on the problem
 
Geoff805 said:
everything works except for the central licking.. Does anyone have any thoughts on the problem
Click to expand...

There's some threads on JaguarForums with 2013 XF owners having exactly the same issue after replacing the battery. It looks like the solution was to reset the battery using diagnostics. Although one person kept the lock button pressed in the car and the starter button flashed and central locking started working.
 
Better to replace like for like but sure it can be reset without using diagnostics
 
on further research i was correct . Bms resets its self after a couple of days use , hope this helps
 
So something strange happened today and I wonder if any of you have advice..

Drove the car to the shops as normal and the car worked fine, fully charged battery, electric windows roof, etc all perfect. I parked up on the drive and unpacked the car and then went to lock it with the key but nothing, I also noticed the windows didn't go back up after closing the door. On closer inspection the electrics were completely dead, locks. windows, radio, ignition, even the interior lights were off.. Tried to open the boot to check the battery terminals but without poser I couldn't even get in. I connected jumper cables to the terminal in the engine bay to apply some power to the locks but when connected all I get is a clicking sound once a second with the lights flickering in time with the clicks.. Anyone come across this or have any other ideas how I can get into the boot to check out the battery terminals.. So many electrical issues in the last year, Im beginning to wonder about this car.. Love the F Type but getting worried about so many Gremilns in mine..

Thanks Everyone
Geoff
 
Time to replace it Geoff , go on to Tanya battery's buy a 017 AGM one and make sure you fully charge it before installing
 
Geoff, Have you checked the Battery cable chassis point in the drivers front wheel well, it's prone to corrosion.

This is mine in the plastic box at only a few 1000 miles!

WheelWellElectricalConnector2.jpg
Whee;WellElectricalConnector.jpg
 
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