I did mine’s yesterday - battery went all of a sudden and Halfords who I booked to do the work, refused to touch it!

Anyway, found this and many thanks to OP for the help - it was easy, apart from the special tool needed for the two bots...

So, I used a 1/4” socket set and knuckle and took out the 10mm nut holding the electronics and was able to lift the unit out, after disconnecting the top connector.

Getting it back in, I used a little sausage of blue-tac to hold the nut in the socket until it was engaged on the thread....

Had to do mine recently, this thread definitely helped, thanks all!

I put in an Exide AGM from Tayna (my goto battery supplier - always well priced, and fast delivery), I'm surprised at how small the batteries are on these beasts, and also how awkward they make it to get to them! Couldn't have been made harder if they'd tried.
A very straightforward job though, just more disassembly than you'd expect,and without this guide I'd have been stuck not having the right security bit to hand to do the ECU. That would have meant taking another few days to get it done.

The new battery programming was easy enough in IID, and the FBH heater works. Better than that, the car now starts without jumping if it's been left for more than a day I remain amazed at what my portable pocket sized LiPo jump pack can start. It gets a bit warm with an old Defender diesel that is a poor starter, but didn't even break a sweat on my 4.4. TDV8.

can i ask why people are fitting AGM batteries to there 2012 TDV8 4.4?
unless i have missed something they are not start stop cars?
my 2012 car still has the original battery on it and it is not a AGM battery am i missing a trick?

AGM were fitted by dealers following a lot of issues with non AGM original fit batteries. Most of us are now on AGM. Just replace yours with AGM when the time comes
Stop start is a red herring in this case  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

good to know thanks for that
i would have gone for the cheaper option!!!

I always thought they had AGM from new. Shows what I know 🤣

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

so my 2011 4.4TDV8 currently has a 95aH / 850 (branded JLR with a small Varta Logo) battery which needs replacement.

Speaking to a main dealer parts guy, he is offering a 90Ah / 850.
Being from. main dealer it is branded JLR, this one with a small Exide Logo.

I have queried that it is 5A less but he has put my VIN in and he says the 90Ah / 850 is correct.
It's coded GX73-10655-BC

He even showed me a 4.4SDV8's battery in-situ on a 2019 and it is indeed 90Ah / 850.

Thoughts?

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Last edited by GGDR on 16th Nov 2020 6:10pm. Edited 1 time in total

Greg, back in 2018 i bought a proper LR battery with a part code of T4A 14085.... pretty sure it was 850 ah... ... - .- -.




Y. O. L. O.
.

thx Stan, do you remember was it 90 or 95ah ?

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

i just googled that part number and it came up with 95ah.. ... - .- -.




Y. O. L. O.
.

thx Stan  Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Greg,
I changed mine a couple of years ago for this one....
2 reasons...
It was the cheapest with free next day delivery to your door.
It comes with a 5 year Warranty.

It is 95 Ah.
Mike.

Click image to enlarge

Greg - I queried the same with Dan when I ordered my new battery from Duckworths and received the 90AH Excide product code GX73-10655-BC.

Dan's response was that this was the new revised replacement.

Cheers, Mark Current Cars:
MY11 5.0 SC Stornoway - sold
MY06 TD6 Zambezi - sold
1997 BMW E36 M3 Evolution Convertible Estoril

Amazing thanks Mike and Mark

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Quote:

Remove this plate by undoing the two 5 point Torx Security Screws. (You probably won't have a tool for this, but they are available on Ebay.)