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Anyone had an 8-speed gearbox flush ?
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Dave T
 


Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902

England 

What oil does it take and how much? Is there a link to the relevant info on ZF site at all or anywhere else?
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Post #147127310th May 2015 6:36 am
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

your need 5 ltrs approx

http://www.advancedfactors.co.uk/39095-feb...4767-p.asp


and one of these little jems which i,m hopefully getting some made shortly

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Post #147127610th May 2015 6:47 am
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Dave T
 


Member Since: 03 Jul 2009
Location: Glasgow
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England 

Is there a filter as well?
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Post #147137510th May 2015 9:29 am
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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

There is definately a page 2 to this thread.

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Post #147137810th May 2015 9:32 am
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Dave T
 


Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902

England 

Ok, rephrase that one, where is the filter, I'm assuming it's the large flat type in the bottom? Don't see an 8 speed on on AF site, but their price for oil is very good compared to anywhere else I can see on line
 Joined the BMWX5 45e group
1994 Defender 90

2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
2005 D3 S Maya Gold

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Post #147139610th May 2015 10:06 am
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Robbie
 


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

Yep, large flat type in the bottom.

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 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 #147140110th May 2015 10:24 am
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euangibson
 


Member Since: 24 Dec 2010
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Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Dave,I've been in conversation with DM about getting this done.....the issues as described above would leave about half a litre of unflushed oil in the cooler and associated pipework (if my memory of the conversation is correct)....so a flush would not be 100% effective.For me,at the moment that makes it very expensive for something that is not going to be a complete oil change,if you take into account the amount needed to flush and refill.....I personally will get it done at some point,but as it's a good chunk more expensive than the 6-speed due to the cost of the aforementioned oil,I'm going to await any further developments Thumbs Up
It's a question of a partial flush,or just a straight oil change at the moment as I see it
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

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Post #147141410th May 2015 11:44 am
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Robbie
 


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Not sure how it could be done to just leave 0.5L in the oil cooler.
 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 #147142710th May 2015 12:17 pm
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euangibson
 


Member Since: 24 Dec 2010
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Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Rob,as I said,I only remembered 0.5l being mentioned in relation to the percentage left unflushed with a closed cooler...of course if the amount,as you suggest,is greater than that,then the financial and preventative reasons for a flush are reduced even further.... Thumbs Up
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights

D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do... 
 
Post #147143010th May 2015 12:32 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

As I currently understand it there is no apparent way to plumb the flushing gear into the system. The obvious place would have been the oil cooler using Geoff's adaptors (Mike has a set of these) but that is on the wrong side of the thermostatic valve. In a way the oil in the cooler is the easiest to get at. We have chewed the fat about connecting direct to the box itself but it is not easy.

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 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 #147143310th May 2015 12:41 pm
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Disco_Mikey
 


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Propshaft gets in the way Mad
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Post #147150810th May 2015 3:45 pm
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Dave T
 


Member Since: 03 Jul 2009
Location: Glasgow
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England 

Could the cooler not just be drained to get rid of the oil?
 Joined the BMWX5 45e group
1994 Defender 90

2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
2005 D3 S Maya Gold

Convoy for Heroes 2011 
 
Post #147161810th May 2015 7:08 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

The cooler is not the issue.
 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 #147162110th May 2015 7:11 pm
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DaveT
 


Member Since: 01 Aug 2005
Location: Cornwall
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United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Indus SilverDiscovery 4

Excuse the stupid question, but does the thermostatic valve prevent flow in either ie both directions? ... in other words, it can't be back flushed can it?
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Post #147176710th May 2015 9:49 pm
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sideshow bob
 


Member Since: 20 Nov 2011
Location: Chester
Posts: 71

2016 Discovery 4 3.0 SDV6 Commercial Auto Montalcino RedDiscovery 4

Hi guys
I wondered if anybody has found a way round the temperature control valve issue that is stopping the flushing of the box?

My 8sp is in real need of a flush, it's quite jerky sometimes between gear changes I am at 70k miles and have had the fluid changed at 60k but clearly the dirty oil in the cooler can't be replaced and will have been circulated around the box, this appears to defeat the object of a fluid change?
  
Post #14975035th Jul 2015 7:58 pm
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