Battery charging - advice sought

[Jaguandy]

I found this in the repair manual. I assume any chassis earth will do for the negative connection of a charger, just not direct onto the battery negative.

[scm]

I connect mine to the point where the negative battery cable is bolted to the chassis, under the boot cubby. Those instructions refer to connectng a slave power supply, which is apparently neccessary when updating software, not a charger.

[gasgas]

ninetails, the car will shut down any circuits not needed when the car goes to start and need all its volts to turn over the engine.

[Baggers]

Yes I think only the earliest cars had the small auxiliary battery under the bonnet - it's just in the offside front corner of the engine bay on mine, an early May 2014 V6S.

Thanks in the meantime - Some useful advice there gents and more for me to try. I've disconnected/reconnected the battery earlier today and checked the hazard light and door lights and all seems normal (i.e. Off!) but there's definitely something not right as there's been a drain overnight again and the battery maintainer just can't cycle through to a full charge. It's booked in at my local specialist for further investigation and to fix the conked out centre vents just after Christmas anyway, so I'll repost once it's (hopefully!) finally sorted. It's a real shame as it's run faultlessly for the 4 years I've had it until 2 months ago and then a whole bunch of things have all given up the ghost at the same time

[scm]

... it's run faultlessly for the 4 years I've had it until 2 months ago and then a whole bunch of things have all given up the ghost at the same time

With luck it'll be a single point of failure that's causing all the issues - it'd be a bit of a coincidence for multiple faults to have occurred simultaneously. Fingers crossed for you!

[Baggers]

... it's run faultlessly for the 4 years I've had it until 2 months ago and then a whole bunch of things have all given up the ghost at the same time

With luck it'll be a single point of failure that's causing all the issues - it'd be a bit of a coincidence for multiple faults to have occurred simultaneously. Fingers crossed for you!

Thank you, yes I can't help but feel they are linked, and there's no doubt in my mind that the issues I'm having are arising from it suddenly being used much less this year and sitting outside in the rain. Will let you know how I get on

[Baggers]

Well the car is finally back. I'll not lie the last 3 months with my F-type have been an absolute trial and the couldn't give a shit attitude of Crewe Jaguar hasn't helped in the slightest.

As it turned out the failed centre vent motor cooked the battery - that's what the dealer says at any rate - as it was not shutting down properly on leaving and locking the car, and I've now had to fork out not just for a the new vent unit but also for the battery as well. In the last 2 months I've now paid £1500 for 3 new injectors and a £600 bill for this (I. e. the vent and another new battery), particularly galling when I paid Jaguar Crewe £350 to fit a new battery on 24th January 2020 (at my request) The car has been serviced annually and I just think the list of component failures isn't good enough for a 6 year old car. Jaguar UK are apparently of the (unproven) view that the failure of the battery was due to the failure of the vent motor and are willing to contribute absolutely nothing. Sorry folks but this is why Jaguar is on its arse in the UK. Not only is this the most unreliable car I've ever owned but the incompetence and attitude of the dealers is simply unacceptable. I was proud to buy a British built car back in 2016 but the experience I've had over the last 6 months has put me off ever buying a JLR vehicle again. Sad to say but I will go with the 'obvious' German competitors next time. At least they won't leave me waiting for Green Flag to turn up on a more or less weekly basis..

[ralphr1780]

I feel sorry for your journey.
In my personal view and based on experience, you shouldn't expect other car manufacturers/dealers to be any better. The Germans produce more hence trouble cases are more diluted and appear as rather isolated, affecting less their image.
Just hope to be lucky enough not to pick one with such an issue.

[scm]

I've found my four Jaguars to be at least as reliable as any other car I've had, and more reliable than some German ones (VW Golf, anyone). The trick is to avoid dealers as they're used to working on new cars at either Jaguar's or the customer's (usually considerable) expense so money is apparently no object. I've found a trusted independent who values his reputation and actually cares about keeping his customers both happy and customers!