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stan
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thats weird...the 2013 to 2015 had aux batterys and from then i thought they went with the capacitor setup like mine....

if you have a main battery in the floor well by the compressor then you then have an aux battery [as in your pic]
you can just disconnect the earth terminal and isolate it , ie wrap it in tape... ... - .- -.




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Post #528868 23rd Sep 2019 5:10pm
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stan
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edit, just read the WM and it seems that 4.4 engines have the aux battery.. ... - .- -.




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Post #528870 23rd Sep 2019 5:16pm
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Ukandrewf



Member Since: 29 May 2013
Location: South bucks
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United Kingdom 2017 Range Rover Autobiography SDV8 Carpathian Grey

so disconnect here and wrap? as you may have gathered i don't have a clue Smile but this start/stop is really annoying me.

 --
On my third Full Fat RR
there's nothing like it.

Post #528874 23rd Sep 2019 6:09pm
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stan
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yep.....if it causes any problems,which I'm pretty sure it won't ,you then reconnect... ... - .- -.




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Post #528880 23rd Sep 2019 6:45pm
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Heyloft



Member Since: 28 Apr 2012
Location: UK
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2019 Range Rover Vogue SE SDV8 Carpathian Grey

I know this thread is about getting stop/start not working but I want mine to work and it won’t.

I know you guys don’t like it, but I’ve only just bought the 13 month old car and I want everything to work.

The dealer said it was the main battery and they’d charged it. I didn’t buy their explanation so I checked the Aux battery when I got home and it says 0% charge and 7.2v so it’s either
a) fooked
B) not charging

How can I tell if it’s receiving a charge ?? Wot's that in old money

Post #545370 27th Feb 2020 6:31pm
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

It will be battery related!

Remove the batteries and bench charge them! Then refit them and check voltages whilst running... Thumbs Up

Post #545375 27th Feb 2020 7:22pm
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Heyloft



Member Since: 28 Apr 2012
Location: UK
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2019 Range Rover Vogue SE SDV8 Carpathian Grey

Yep got that it’s battery related

The main battery is 98% charged and 13.8v so I’m happy with that.

The Aux battery after 2 hrs of charge is 10% charged and 10.2v. That’s just not right.

I don’t want to fix it, it’s under warranty, I just want to tell the dealer that they’re talking sh*te and it’s the aux battery not the main one, rather than them blaming the main starting battery again. I’m evidence gathering, I guess. Wot's that in old money

Post #545377 27th Feb 2020 7:33pm
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Vogue



Member Since: 31 Jan 2008
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If you disable the Stop Start on the 4.4 it will also disable your heated seats 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Post #546575 9th Mar 2020 3:41pm
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stan
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hasnt on mine...in fact everything works as it should.. ... - .- -.




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Post #546578 9th Mar 2020 3:58pm
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Vogue



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It will Stan - yours is the V6 - it’s the SDV8 the heated seats stops working on 👍🏻 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Post #546602 9th Mar 2020 6:30pm
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stan
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interesting..i wonder if any other 4.4 owner has this problem.. ... - .- -.




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Post #546608 9th Mar 2020 6:39pm
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JNC



Member Since: 23 Feb 2020
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United Kingdom 2011 Range Rover Vogue SE TDV8 Nara Bronze

Following on from this. Has anyone done a diag/iid tool scan after disconnected the aux battery?
We have customers L405 3.0 V6.
Fault codes

U0447-00 Invalid data received from gateway A
Also code for Aux battery.

DPF keeps getting full.
Vehicle conditions incorrect for regeneration.
Just eliminating that possibility from equitation.

Post #579895 15th Jan 2021 6:34pm
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stan
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ive never had a dpf warning since the mod and never since ive had mine...

everything works as it should.... ... - .- -.




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Post #579900 15th Jan 2021 7:17pm
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JNC



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United Kingdom 2011 Range Rover Vogue SE TDV8 Nara Bronze

Do you have fault code for battery when you scan vehicle?

Post #580076 17th Jan 2021 12:14am
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stan
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mines a capacitor so no battery fault code. ... - .- -.




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Post #580082 17th Jan 2021 8:25am
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