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Torque converter
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Robse
 


Member Since: 10 Jun 2014
Location: Cambridgeshire
Posts: 498

United Kingdom 
Torque converter

Please excuse me as I really don't know what I'm talking about here and have very little automatic gearbox experience !
Should I expect to experience some 'slip' from the torque converter, almost like 'floating' revs usually when driving with a relaxed style in the low gears ?
I've read a bit about this on the forum but usually seems related to older cars with some miles on them, not one that has just gone over 1000 !
Just wondering if I have something to worry about or not !
 Velar MY18 D180 S Narvik
Discovery MY2015 3.0 SDV6 SE Corris - Gone 
 
Post #13820641st Dec 2014 11:46 am
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Robse
 


Member Since: 10 Jun 2014
Location: Cambridgeshire
Posts: 498

United Kingdom 

Ok so I thought I'd try it in command shift to see if it was the same, it keeps dropping out of manual and going back into D by itself ?
Booked into the dealer !
 Velar MY18 D180 S Narvik
Discovery MY2015 3.0 SDV6 SE Corris - Gone 
 
Post #13847186th Dec 2014 1:21 pm
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anglefire
 


Member Since: 09 Mar 2010
Location: In the Club House
Posts: 4180

England 

Sounds like gear linkage is sticking.
 Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500

_________________________________________________
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Post #13847206th Dec 2014 1:33 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Robse wrote:
Ok so I thought I'd try it in command shift to see if it was the same, it keeps dropping out of manual and going back into D by itself ?
Booked into the dealer !


You are selecting 'S' first aren't you???

Whistle
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
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Post #13847266th Dec 2014 2:00 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

anglefire wrote:
Sounds like gear linkage is sticking.


You have wondered into the D4 section where the rotary knob lives.

Laughing
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #13847276th Dec 2014 2:02 pm
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anglefire
 


Member Since: 09 Mar 2010
Location: In the Club House
Posts: 4180

England 

Embarassed Rolling with laughter
 Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500

_________________________________________________
Disco Picture Website Here 
 
Post #13847326th Dec 2014 2:19 pm
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Hairy Dan
 


Member Since: 19 Jan 2011
Location: Co. Durham
Posts: 12319

United Kingdom 2016 Discovery 4 3.0 TDV6 Landmark LE Auto Santorini BlackDiscovery 4

Are you using the paddles? If you change up or down using the paddles, if you don't use them for a certain amount of time it will automatically go back to D
 Cheers Ian
--------------------
Club N.E.R.D.S
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Post #13847636th Dec 2014 4:16 pm
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Robse
 


Member Since: 10 Jun 2014
Location: Cambridgeshire
Posts: 498

United Kingdom 

Yes that's exactly what happens. Funny though I even explained it to the person in the service department ?!
 Velar MY18 D180 S Narvik
Discovery MY2015 3.0 SDV6 SE Corris - Gone 
 
Post #13848246th Dec 2014 6:03 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20841

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The 8 speed gearbox in the D4 is a revelation over the earlier 6 speed box.

You will find that even before the car has warmed up, the TC will lock up, giving you much more torque to use. Thumbs Up
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Post #13848266th Dec 2014 6:04 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

Robse wrote:
Yes that's exactly what happens. Funny though I even explained it to the person in the service department ?!


I guess reading the manual is last on the list but if you select 'S' and then use the paddles it stays in the manual mode. Flicking a paddle in D mode is just a temporary override. Useful if you want to preselect a gear for overtaking or tackling a descent. If you accidentally select a paddle in D or want it to go back to full D before it automatically defaults just hold the up paddle for a few seconds.

Thumbs Up
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #13848316th Dec 2014 6:13 pm
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Robse
 


Member Since: 10 Jun 2014
Location: Cambridgeshire
Posts: 498

United Kingdom 

Disco has been back to the dealer to look at this, they think there's nothing wrong with it but I'm not so sure. I test drove another MY15 car and it showed none of the symptoms I'm seeing.
Anyone else seeing this with their 8-speed box ? Any ideas ?
When pulling away at a constant throttle the revs climb steadily and it changes to second, in second around 1500 to 2000 rpm the revs hold/dip before starting to climb again whilst the sense of acceleration remains the same. Sometimes it happens in first gear but always second. Give it the beans and it will accelerate fine through the gears.
 Velar MY18 D180 S Narvik
Discovery MY2015 3.0 SDV6 SE Corris - Gone 
 
Post #141123420th Jan 2015 5:53 pm
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lee157
 


Member Since: 01 Oct 2008
Location: in the middle
Posts: 557

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

Robse, yes I get this from my my12 8 speed, exactly as you describe and I too have a relaxed driving style, it is usuly around 15mph and I put it down to the torque conveter going into full lockup.
I hope it's not a sign of problems. Mine is at 23k miles but only had it a month.

Lee
  
Post #141127520th Jan 2015 6:47 pm
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Robse
 


Member Since: 10 Jun 2014
Location: Cambridgeshire
Posts: 498

United Kingdom 

Hi Lee. I'm going to take mine back. They said they had reset the gearbox "adaptions" but it hasn't made any difference. I'll let you know how I get on.
Hope it isn't problems, mines less than 2K miles !!
 Velar MY18 D180 S Narvik
Discovery MY2015 3.0 SDV6 SE Corris - Gone 
 
Post #141128220th Jan 2015 6:55 pm
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lee157
 


Member Since: 01 Oct 2008
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Posts: 557

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

Keep us posted Robse. Thumbs Up
  
Post #141128420th Jan 2015 7:02 pm
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