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stan
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stop start

this apparent fuel saving feature is really bugging me and i would dearly like to switch it off permanently, but for my year its not that easy ...

i have researched that the 2013-2015 years have an auxiliary battery tucked away in the rear off side cubby and to disable the stop/start you disconnect the negative cable..
this fools the stop/start system into thinking theres not enough battery power to use this feature..

from 2016 [65 reg'ish] there is no aux battery but a voltage quality module [VQM] and a capacitor [?] which monitors whether theres enough power in the main battery/capacitor..
its said that if you disconnect the signal wire to the VQM then this works as the above aux battery disconnection..

the last option is a reverse default on the stop/start button on the centre console so when you switch on the engine the stop/start is off instead of on..
i found this method on youtube from a auto electronics company in california who charge $350 for the process so it seems it can be done..

i've also spoken to Pat at GAP who have had limited success in disabling this feature..


if theres anyone who has a solution for the 2016 onwards FF's , please do tell.. ... - .- -.




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Post #521332 10th Jul 2019 9:59am
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supershuttle



Member Since: 20 Mar 2011
Location: Lancashire
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England 2013 Range Rover Autobiography SDV8 Luxor

Oddly Stan my wife new car has this feature, and I don't think you can switch it off (otherwise I would have) but I have grown to be OK with it and the way it starts the car before pulling off is almost magical. Obviously I wouldn't have it on my RR but is OK on her Mazda Rolling with laughter Rolling with laughter Geoff

Post #521345 10th Jul 2019 12:52pm
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Cam-Tech-Craig



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

I quite like it Stan, saves all the vibration of the Derv engine when stationary!

Post #521349 10th Jul 2019 1:59pm
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Phil.



Member Since: 19 Apr 2010
Location: West Midlands
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United Kingdom 2019 Range Rover Vogue SE SDV8 Santorini Black

I switch it off because I fear that the heat from a stalled engine will cook something, probably the starter motor or turbo’s. Unlike my BMW, the RR doesn’t leave its fans running to cool a hot engine after it has been switched off. In the RR the only use for the start-stop is to get it through the emissions test. I too would like to switch off this function completely. MY23 D350 HSE
On my 7th RR plus various other JLR vehicles

Post #521351 10th Jul 2019 2:17pm
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stan
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@geoff, you can do yours very easily ..

@craig , mines a lowly 3.0 so not so much vibration..

@phil, i'm hoping some kind of solution will come up.. ... - .- -.




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Post #521368 10th Jul 2019 3:53pm
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supershuttle



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England 2013 Range Rover Autobiography SDV8 Luxor

My old thing doesn’t have it or its already switched off Very Happy Geoff

Last edited by supershuttle on 10th Jul 2019 5:04pm. Edited 1 time in total

Post #521372 10th Jul 2019 4:15pm
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dolph34



Member Since: 14 Sep 2015
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Ireland 2015 Range Rover Autobiography SDV8 Corris Grey

My 2015 4.4 AB doesn't have it !!! 2015 4.4 AB
GSXR 1000 K5
R1 1998

Post #521390 10th Jul 2019 7:43pm
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Dixy



Member Since: 09 Apr 2009
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2016 Range Rover Vogue SDV8 Loire Blue

Just get it in the start routine. Foot on brake press start press stop start press handbrake letters not necessarily in the right order

Post #521417 11th Jul 2019 6:45am
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AJGalaxy2012



Member Since: 11 Jun 2018
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United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

I've disabled it on a few cars but only by getting to the switch wiring. A small module with 2 timers, the first one waits 30 seconds when the ignition is switched on, the second timer then operates a relay for 0.5 seconds simulating the button beig pressed. 1/2 dozen components and 4 wires sorted. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #521422 11th Jul 2019 7:47am
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stan
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sounds complicated john....


i've videos where some bloke takes a '@' switch apart and bridges 2 contacts in it to make the car think the switch has been depressed.. ... - .- -.




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Post #521431 11th Jul 2019 8:31am
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AJGalaxy2012



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United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

My first attempt was similar and quite easy to short the switch out, many systems however look for the changing state and if they see it permanently closed or open will signal an error etc hence why I did the two timer idea which works just like the switch being manually pressed, the initial pause is to give the engine time to be started and then it defeats the stop/start before youve driven off the drive. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #521433 11th Jul 2019 8:37am
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Baltic Blue



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United Kingdom 2011 Range Rover Vogue SE TDV8 Baltic Blue

https://rover.ebay.com/rover/0/0/0?mpre=ht...2352078637

Spotted on eBay.
Any use Stan ?

Mike G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Post #521440 11th Jul 2019 9:13am
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Rob99



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United Kingdom 2017 Range Rover Autobiography SDV8 Santorini Black

^That looks interesting Mike, although I wouldn't necessarily believe their claim it doesn't affect the warranty..... Whistle

I assume you have the AU warranty on your new one Stan. 2017 4.4 SDV8 Autobiography
2012 4.4 TDV8 Westminster - Gone, but not forgotten

Post #521443 11th Jul 2019 9:25am
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stan
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good spot mike, i'll look into this .. Wink


yes rob , 2 year AU warranty... Neutral ... - .- -.




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Post #521458 11th Jul 2019 11:27am
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Bill



Member Since: 18 Nov 2017
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Stop start is really irritating , all be it for some, & I’m some! London drivers may have a different view.

2017 or 18 BMW’s have almost a dual start button, and almost part/attached, just slightly below is the “switch off “ start/stop, so you don’t really have to think. Just switch it off as your finger is there when you get going . JLR take note.


I’m forever switching off as I’m sure it isn’t good for the start motor nor for the turbo’s coming to a halt after doing 70 down the motorway.... Filters are in fact so good that in certain circumstances, when the ambient air is already polluted, a diesel car will tend to extract more particles from the air than it emits. Emissions Analytics worked with........etc etc

He who dies with the most toys wins...

Post #521499 11th Jul 2019 4:06pm
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