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2010BlackL322



Member Since: 30 Oct 2021
Location: London
Posts: 119

United Kingdom 2010 Range Rover Autobiography Black 4.4 V8 Santorini Black
Disconnecting battery

All, QQ

Is there a special procedure to follow when disconnecting the battery on the L322, MY10

On the defender, you had to turn the key in the ign to disable the immobiliser, then remove it and had 30 seconds to take the neg cable off before the alarm would sound.

Sure the tech in the L322 is far, far more advanced, but wanted to check before I Censored off the neighbours

Thanks Check out my YouTube channel

https://youtu.be/UHBbLWZXw4A

Post #613046 18th Nov 2021 3:20pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 451

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

Just take off the negative without the ignition on. Done mine a load of times, no issues.

Just make sure car is unlocked. Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project
or
https://www.fullfatrr.com/forum/topic61540.html

Post #613047 18th Nov 2021 3:29pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8190

England 2014 Range Rover Autobiography SDV8 Loire Blue

Procedure is in the Workshop Manual which is in the WIKI... don't think it will set the alarm off but there is an explosive disconnect in there somewhere so you may lose a few fingers... Shocked Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #613048 18th Nov 2021 3:29pm
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2010BlackL322



Member Since: 30 Oct 2021
Location: London
Posts: 119

United Kingdom 2010 Range Rover Autobiography Black 4.4 V8 Santorini Black

Caesium wrote:
Just take off the negative without the ignition on. Done mine a load of times, no issues.

Just make sure car is unlocked.


thank you! Check out my YouTube channel

https://youtu.be/UHBbLWZXw4A

Post #613049 18th Nov 2021 3:39pm
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2010BlackL322



Member Since: 30 Oct 2021
Location: London
Posts: 119

United Kingdom 2010 Range Rover Autobiography Black 4.4 V8 Santorini Black

Haylands wrote:
Procedure is in the Workshop Manual which is in the WIKI... don't think it will set the alarm off but there is an explosive disconnect in there somewhere so you may lose a few fingers... Shocked


Shocked

Hmm... thanks Check out my YouTube channel

https://youtu.be/UHBbLWZXw4A

Post #613050 18th Nov 2021 3:40pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 451

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

Haylands wrote:
Procedure is in the Workshop Manual which is in the WIKI... don't think it will set the alarm off but there is an explosive disconnect in there somewhere so you may lose a few fingers... Shocked


That's on the positive terminal and it's activated from a crash sensor so you'd need to be pretty dynamic with the terminal to trigger it.

This is why we disconnect the earth, no danger there. Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project
or
https://www.fullfatrr.com/forum/topic61540.html

Post #613051 18th Nov 2021 3:43pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8190

England 2014 Range Rover Autobiography SDV8 Loire Blue

I was just answering the question if there was a procedure to disconnect the battery....

Yes there is.....

The procedure is there for a reason... there are many shortcuts in the upkeep of a Range Rover but it's always best to have the correct information so you can make your own mind up if you wish to take short cuts....

It has been known for ECU's to develop faults when they have not been able to power down correctly...

On a fatty with no known problems then I expect just undoing the negative lead would be fine but when others are asking, and we have no idea of the health of their vehicle, IMHO I think it is best if they receive the "official" way to do it... Thumbs Up Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #613056 18th Nov 2021 4:10pm
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briangunn



Member Since: 19 May 2019
Location: London
Posts: 56

United Kingdom 2010 Range Rover Vogue SE TDV8 Buckingham Blue

The procedure is shown on the label on the slam panel:

Key off (well, ign off via the button on MY10 on cars), wait 120s for everything to do its shutdown process, then battery neg off.

There's no explosive disconnect devices on MY10 onwards cars.

Post #613072 18th Nov 2021 6:30pm
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