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DISCO3.CO.UK > Technical (D4)

Differences between six and eight speed D4
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discovery3ski
 


Member Since: 25 Dec 2012
Location: leicester
Posts: 734

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3
Differences between six and eight speed D4

As above, is the later D4 a significant improvement on the six speed box one?
Looks like a few extra BHP , two gears and a knob? Discovery 3 tdv6 HSE 2007
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Post #218037315th Oct 2020 8:07 pm
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kajtzu
 


Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6568

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

On diesel: yes, the 8 speed is better. Thumbs Up
On petrol: it’s actually a step back since, by default, it comes with a one-speed transfer box (high gears only). Might matter or might not depending on your use case. Some have been surprised by this. Whistle  
Post #218037615th Oct 2020 8:14 pm
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discovery3ski
 


Member Since: 25 Dec 2012
Location: leicester
Posts: 734

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Sorry, yes diesel.
What’s the big difference please? Discovery 3 tdv6 HSE 2007
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Post #218037715th Oct 2020 8:17 pm
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kajtzu
 


Member Since: 11 Aug 2017
Location: Helsinki
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Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

It’s more economical (better mileage) and shifts smoother than the 6 speed. While you didn’t ask, starting MY2012 along with the 8 speed gearbox the vehicles also had upgraded entertainment system - at least HSEs - search for ICE Gen 2.1. 

Last edited by kajtzu on 15th Oct 2020 8:25 pm. Edited 1 time in total 
Post #218037815th Oct 2020 8:25 pm
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SteveNorman
 


Member Since: 14 Oct 2005
Location: Somerset
Posts: 1144

United Kingdom 

Less likelihood of torque converter clutch judder and surge.
In my opinion the 8 speed is a better box all round.  
Post #218037915th Oct 2020 8:25 pm
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pagoda
 


Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1923

Canada 2016 LR4 3.0 SDV6 Landmark LE Auto Yulong WhiteLR4

kajtzu wrote:
On diesel: yes, the 8 speed is better. Thumbs Up
On petrol: it’s actually a step back since, by default, it comes with a one-speed transfer box (high gears only). Might matter or might not depending on your use case. Some have been surprised by this. Whistle


"Some" meaning who...? Rolling with laughter PAGODA  
Post #218038015th Oct 2020 8:28 pm
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pagoda
 


Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1923

Canada 2016 LR4 3.0 SDV6 Landmark LE Auto Yulong WhiteLR4

...anyway.

I'm in overlap mode so have the 6 & 8 speed. I'm reminded that they're a world apart. Don't go for the 6 speed unless you're absolutely forced to. There's nothing wrong with it at all - it's completely fit for purpose (as my 2006 (with transfer box) demonstrates) but the 8 speed is a lot better. PAGODA  
Post #218038215th Oct 2020 8:30 pm
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kajtzu
 


Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6568

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Ain’t naming no one, pagoda Whistle Whistle Rolling with laughter

It certainly isn’t obvious, I found it out by accident Thumbs Up  
Post #218038315th Oct 2020 8:30 pm
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pagoda
 


Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1923

Canada 2016 LR4 3.0 SDV6 Landmark LE Auto Yulong WhiteLR4

And I'm bloody glad you did! I'm still not sure I'd have missed it when it came to looking at cars, but it certainly made searching for vehicles a much more prolonged process! PAGODA  
Post #218038415th Oct 2020 8:33 pm
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kajtzu
 


Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6568

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

So you found your SCV6 with HD pack? 8) Should we expect pictures and all that obligatory stuff soon? Whistle  
Post #218038515th Oct 2020 8:35 pm
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pagoda
 


Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1923

Canada 2016 LR4 3.0 SDV6 Landmark LE Auto Yulong WhiteLR4

Yes - finally, adaptive cruise and HD pack. 37K miles. Fancy white colour and sort of brown seats. Pick it up tomorrow. I'm also going to put an ad here for my V8 in the hope that it could go to someone on here, because it's awesome and I'm still torn about the switch. PAGODA  
Post #218038815th Oct 2020 8:44 pm
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kajtzu
 


Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6568

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Congrats Thumbs Up  
Post #218038915th Oct 2020 8:47 pm
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