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Electronic battery cut off solenoid.
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eenomc
 


Member Since: 07 Oct 2013
Location: Moray
Posts: 173

Scotland 
Electronic battery cut off solenoid.

Met up with my father at a rainy Fort William campsite this weekend and was checking over his newly acquired D4. The car is a 2011 xs and pretty clean throughout. However, upon checking the battery compartment it appears to have some sort of electronic battery disconnect fitted to the negative battery clamp (basically a solenoid controlled switch of sorts).

On the positive battery lead it looks like a Hall effect sensor or similar taped to the lead and the battery vent heads down to a control box too. Is this standard d4 fit and if so why?

Sorry no pictures as phone signal abysmal! Will get some up tomorrow evening.
  
Post #12793324th May 2014 3:26 pm
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eenomc
 


Member Since: 07 Oct 2013
Location: Moray
Posts: 173

Scotland 

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Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
  
Post #12793374th May 2014 3:40 pm
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Russell
 


Member Since: 24 Aug 2007
Location: Kent
Posts: 10564

United Kingdom 

Yes that is normal
 MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club 
 
Post #12793564th May 2014 5:00 pm
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

What does it do?
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #12795555th May 2014 2:21 am
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barryp
 


Member Since: 24 Dec 2006
Location: Sydney
Posts: 138

Australia 2006 Discovery 3 TDV6 SE Auto Chawton WhiteDiscovery 3

Andrew,

See below, its a pyrotechnic device to cut off power during a crash.
Quote from the manual below:

"The battery terminal posts allow for the battery cables to be connected with clamp type connections. The battery positive terminal uses a pyrotechnic attachment, which detaches the battery cable in the event of a crash of a severity to trigger the airbags. For additional information, refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System)"

Regards
Barryp
 2017 Range Rover Sport TDV6 L494 Fuji White
2011 Range Rover Sport SDV6 L320 Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, gone after 12 years! Excellent vehicle.
Ex Member Range Rover Club NSW 
 
Post #12796165th May 2014 9:35 am
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Barry

That answers the positive terminal question but the one on the negative one is different and is connected by a number of cables to a terminal block.

Is not on the D3 but is on the D4.
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #12796225th May 2014 9:46 am
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wiggs
 


Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

It's the battery monitor
 G4 Gone ...but not forgotten  
Post #12796295th May 2014 9:57 am
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barryp
 


Member Since: 24 Dec 2006
Location: Sydney
Posts: 138

Australia 2006 Discovery 3 TDV6 SE Auto Chawton WhiteDiscovery 3

Hi Andrew,

Here is the quote from the manual on the negative terminal:

"The vehicle is fitted with a transit relay. This is a disposable device and NOT for use by the customer. This relay fits in series with the battery and ground; it disconnects the battery from the vehicle's ground and thus eliminates quiescent current during delivery. The relay must be removed before delivery to the customer.'

Says that it should be removed before delivery though.

My BMW X5 has a similar setup on the positive terminal.

Regards
Barry
 2017 Range Rover Sport TDV6 L494 Fuji White
2011 Range Rover Sport SDV6 L320 Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, gone after 12 years! Excellent vehicle.
Ex Member Range Rover Club NSW 
 
Post #12796585th May 2014 10:35 am
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highlands
 


Member Since: 11 Jan 2010
Location: NW Highlands
Posts: 5096

Ukraine 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Does this mean it will be impossible to open the windows in the event of a crash?
 Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me Sad
 
Post #12796605th May 2014 10:45 am
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

wiggs wrote:
It's the battery monitor


Makes sense given the D4s different electrics.
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #12796775th May 2014 11:44 am
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promitheus
 


Member Since: 04 Jul 2009
Location: Afidnes, Greece
Posts: 570

Greece 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

highlands wrote:
Does this mean it will be impossible to open the windows in the event of a crash?

Good question!
  
Post #12796785th May 2014 11:48 am
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barryp
 


Member Since: 24 Dec 2006
Location: Sydney
Posts: 138

Australia 2006 Discovery 3 TDV6 SE Auto Chawton WhiteDiscovery 3

Hi Andrew,
Terminals on my 2011 RRS are the same as they were on my D3 which has now gone?
Don't understand the comment on different electrics?
At the battery terminals?
Regards
Barryp
 2017 Range Rover Sport TDV6 L494 Fuji White
2011 Range Rover Sport SDV6 L320 Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, gone after 12 years! Excellent vehicle.
Ex Member Range Rover Club NSW 
 
Post #12797075th May 2014 12:42 pm
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

D3 has a block on positive only. D4 has one on positive and negative terminals.
D4 made some changes to the charging system I believe which would explain the battery monitor on the negative terminal.
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #12797145th May 2014 1:05 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Nothing like that on my D4, so must be model year specific. The small gauge wires coming from it look like the BMS though, so I am with Wiggs.
 Land Rover - Turning Drivers into Mechanics Since 1948

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Post #12797515th May 2014 3:44 pm
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eenomc
 


Member Since: 07 Oct 2013
Location: Moray
Posts: 173

Scotland 

Thanks for all the replies, was just concerned that his newly aquiired d4 had some unknown modifications! After driving the d4 is it normal to want to chop the d3 in for one? Laughing
  
Post #12797615th May 2014 4:24 pm
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