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Driving or stopping in snow tip with auto
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hids4u
 


Member Since: 12 Apr 2009
Location: Leeds
Posts: 1155

United Kingdom 2009 Discovery 3 4.4 V8 HSE Auto Santorini BlackDiscovery 3
Driving or stopping in snow tip with auto

Well we have a nice dusting of snow in Warsaw. Been out in the d4 with the wintracs fitted. Must say it feels like the d4 doesn't want to stop so easy like the d3 with the same tyres on last year, and they were brand new last year. Its as if the abs kicks in too quick. Jumped into the sport with scorpions which I found were worse than the wintracs last year, but compared to d4 I saw no difference this year.

Thinking maybe the huge brakes on the d4 might have something to do with it. They are bigger than the sport even.

But it reminded me of a tip my wife told me after she nearly came unstuck with the d3 when it was brand new on its crappy Goodyear tyres in the snow. The car was not wanting to stop abs grinding away so she knocked the drive into neutral. Hey bingo the car stopped. I tried it yesterday with the d4 and it does indeed make a big difference

So, if you find the car not wanting to stop on snow or ice and you think you will hit something knock it I to neutral and you will hopefully stop Thumbs Up
  
Post #103848620th Jan 2013 9:41 am
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2DISCO3ORNOT
 


Member Since: 27 Apr 2009
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I just dont follow that at all???

You mean neutral but still with brakes Yes?
  
Post #103848920th Jan 2013 9:45 am
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hids4u
 


Member Since: 12 Apr 2009
Location: Leeds
Posts: 1155

United Kingdom 2009 Discovery 3 4.4 V8 HSE Auto Santorini BlackDiscovery 3

Yes. Whilst braking, take it out of drive and put it I to neutral N

This stops the engine even on tick over putting any drive force to the wheels that the brakes need to over come. With such little friction with the snow the extra force from the engine is like the straw that broke the camels back
  
Post #103849220th Jan 2013 9:50 am
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2DISCO3ORNOT
 


Member Since: 27 Apr 2009
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Makes sense, will give it a whirl this afternoon, nice little dusting here in London today Very Happy
  
Post #103849620th Jan 2013 9:54 am
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twoakers
 


Member Since: 15 Nov 2010
Location: Harwich
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Good advice which I will try out very soon Thumbs Up Very Happy
Have been using 'the big yellow button' especially when being pushed downhill by my big trailer Whistle
With so little braking force the overrun brakes do not activate Rolling Eyes
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Post #103850220th Jan 2013 10:05 am
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jamieg7762
 


Member Since: 05 Mar 2010
Location: Warwickshire
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England 2013 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Or you could always knock it into command shift, use the gears to slow down and then apply the brakes when at a virtual standstill.
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Post #103850520th Jan 2013 10:09 am
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Disco_Mikey
 


Member Since: 29 May 2007
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

jamieg7762 wrote:
Or you could always knock it into command shift, use the gears to slow down and then apply the brakes when at a virtual standstill.


Thats what I would be doing. Would not be putting it into neutral and relying on the ABS alone Shocked
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Post #103850720th Jan 2013 10:15 am
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Robbie
 


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

Always been taught to pre-select a low gear before going downhill on a low traction surface. The de facto teaching at LRE is HDC on (as it works in both directions), low ratio and command shift 3rd for going up and command shift 1st for going down. Depending on conditions you can vary from these starting points.
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Post #103850920th Jan 2013 10:19 am
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disco_steve
 


Member Since: 25 Aug 2009
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England 2006 Discovery 3 TDV6 HSE Auto Arctic FrostDiscovery 3

I use terrain response in 'snow' mode, which locks out 1st gear, HDC on, then as I approach a steep hill, I use command shift to ensure 2nd is selected, keep off the brakes, (or use VERY gently) to avoid inducing a slide, as once this happens the brakes and HDC will have absolutely NO EFFECT Sad

You may or not know that you can also adjust the target speed that HDC operates by using the cruise control +\- rocker switch on the steering wheel - try it, it is very impressive, as soon as you start going a bit too fast for your liking, press the - button several times and the speed will reduce Thumbs Up

Very clever technology Thumbs Up Thumbs Up
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Post #103854920th Jan 2013 11:06 am
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hids4u
 


Member Since: 12 Apr 2009
Location: Leeds
Posts: 1155

United Kingdom 2009 Discovery 3 4.4 V8 HSE Auto Santorini BlackDiscovery 3

Gears don't make you stop. I am not talking about putting it into N at any speed, just the last few mph when the abs fails to stop the car. At that point putting it I to 1st does nothing

Slowing down from higher speed with gears goes without saying a good idea.

Try it Thumbs Up
  
Post #103857120th Jan 2013 11:34 am
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jamieg7762
 


Member Since: 05 Mar 2010
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England 2013 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Aaahhhhhh I see, Makes since now.

So you mean the last couple of yards at about 5-10mph, I might give it a try as off out in a bit. Thumbs Up
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Post #103859020th Jan 2013 12:15 pm
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Disco_Mikey
 


Member Since: 29 May 2007
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

hids4u wrote:
Gears don't make you stop. I am not talking about putting it into N at any speed, just the last few mph when the abs fails to stop the car. At that point putting it I to 1st does nothing

Slowing down from higher speed with gears goes without saying a good idea.

Try it Thumbs Up


Sounds better Thumbs Up

Though, AIUI, the ABS strategy should cut out the ABS in GGS mode and those kind of speeds anyway. The theory behind it being the snow builds up infront of the wheels, and actually decreases the braking distance as opposed to having the ABS on constantly until it comes to a halt.

May have to check my notes on that though
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Post #103887020th Jan 2013 7:04 pm
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hids4u
 


Member Since: 12 Apr 2009
Location: Leeds
Posts: 1155

United Kingdom 2009 Discovery 3 4.4 V8 HSE Auto Santorini BlackDiscovery 3

i find the snow setting has no affect on the ABS - it just retards the engine and keeps the gear low and locks out first.

i find key is to brake as light as possible and not let abs kick in - as when it does its not often you stop where you would like to

i have tested it many times and it really does make a difference, but cant take the credit as it was my wife that told me Embarassed
  
Post #103888920th Jan 2013 7:18 pm
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Richie63
 


Member Since: 16 Oct 2012
Location: Kent
Posts: 494

England 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

I've got to admit this is all becoming a bit confusing Confused , I agree that stopping on a snow covered road with an auto is an issue and have tried the techniques mentioned in this post but I am finding it all a bit of a handfull.

As I see it Confused using command shift is better in the snow, which having used it I would agree. But then on the last few mph I should knock it back into drive so that I can shift into neutral Shocked .

I'm sorry but for me this is information overload, and have found that there are far too many other things going on to be messing about with the shift in this way.

Please feel free to correct me if I have misunderstood Bow down
  
Post #103890020th Jan 2013 7:29 pm
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hids4u
 


Member Since: 12 Apr 2009
Location: Leeds
Posts: 1155

United Kingdom 2009 Discovery 3 4.4 V8 HSE Auto Santorini BlackDiscovery 3

for most dirving i dont ever use the gears to slow down. i find the auto box does a good job of this for me

the only situation i suggest you might find it useful to knock into N - is when you have done all you can to stop but the car keeps going. so before you hit the car tree or wall - try putting it into N - and you will I am sure find the car stops.

i tried it many times - from 10 miles per hour to stop with brakes and car in auto
then same road snow etc - tried again but as soon as i hit brakes i put car into N
it stops in 1/2 to 2/3 of the distance

not rocket science - nor am i suggesting to change the way you drive, brake or slow down. when all else has failed - keep it in the back of your mind it might save you
  
Post #103891920th Jan 2013 7:52 pm
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