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How to change front diff breather valve/filter/vent
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Nasher
 


Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2668

England 2016 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4

Is the breather tube end in the same position on all D3s?

It's just not there on my 55plate D3. Big Cry

Managed to get my hand in to the top of the diff, and found where it attaches the other end, but can't follow the tube far enough to see where it goes.

It certainly doesn't appear where it's shown in the images and files in Kav1187s very useful gallery.

Nasher.
 Heaven doesn't want me, and hell is afraid I'll take over.  
Post #122383525th Jan 2014 3:17 pm
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John P
 


Member Since: 12 Aug 2011
Location: West Sussex
Posts: 1270

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3

I did mine today, and was in the position shown in the write up. Thumbs Up (56 Plate) When I cut it, I heard a release of air, which probably why my seals are weeping. When I blew into the cut off part nothing moved and was completely blocked. Lets hope this stops the weeping.

Cheers
John
  
Post #122388025th Jan 2014 5:11 pm
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Nasher
 


Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2668

England 2016 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4

Update.

Found it Thumbs Up
It was trapped under the engine bent across the front of the sump towards the opposite side of the engine bay Shocked, and yes it has the original style breather on the end.

I'm assuming it has been that way since July 2007 when the car was fitted with a new engine, turbo, and radiator under warranty by a LR dealers in Norfolk, which was before I owned it.

I was only doing an oil and filters change today and having seen this thread thought I'd have a look for it.
Glad I did now, as it was so low I know I've had it under water a couple of times.
Looks like next job on the list will be to change the diff oil, which it's probably due anyway.
Oh and change the breather for the new type of course.

I've managed to carefully manipulate it round all the various pipes etc, and into roughly the right place.

Nasher
 Heaven doesn't want me, and hell is afraid I'll take over.  
Post #122388625th Jan 2014 5:19 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Damn, mine isn't where it's supposed to be either Confused . Looks like I'll be fishing around in the morning before I change the oil. Any tips on finding and re-routing appreciated.
  
Post #17986311st Apr 2017 4:37 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

So it should be near the coolant bottle.
DOwn the side of the radiator.

The other place you can see it sometimes is in the wheel arch at the front, near the large pipes. Even a joint there
  
Post #17986501st Apr 2017 5:39 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

trailhound wrote:
Damn, mine isn't where it's supposed to be either Confused . Looks like I'll be fishing around in the morning before I change the oil. Any tips on finding and re-routing appreciated.


as pete has said the pipe is on the left hand side of the coolent bottle

cut the old diff breather off then fitted a 6mm pushfit coupling , then extended mine to the aux battery tray area , fitted the modified filter as per pic

just used some cable ties, routing round the engine bay

can see the new breather by the master cyl , so it's well out of the way

hope that helps abit

  
Post #17986521st Apr 2017 5:48 pm
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ClassikFan
 


Member Since: 02 Nov 2016
Location: Surrey
Posts: 1025

United Kingdom 2008 Discovery 4 3.0 SDV6 HSE Auto Loire BlueDiscovery 4

Been meaning to have a look at mine for a while, this thread reminded me.
Just chopped mine off, no plans to go wading that deep!
The valve didn't work so I'm glad I did it!
  
Post #17986561st Apr 2017 6:06 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Pete K wrote:
So it should be near the coolant bottle.
DOwn the side of the radiator.

The other place you can see it sometimes is in the wheel arch at the front, near the large pipes. Even a joint there


Mine is definitely not there. Hopefully a previous owner has routed it somewhere clever - I'll check the wheel arch.

Hope it's not missing altogether.
  
Post #17986911st Apr 2017 7:49 pm
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Sydney
 


Member Since: 11 Aug 2013
Location: St Neots
Posts: 903

United Kingdom 2006 Discovery 3 TDV6 Base 7 Seat Manual Zermatt SilverDiscovery 3

Just checked mine and one placed on order, never had any pressure in the diff when I changed the oil last year but better safe than sorry.
 De-Tango
V8 Brakes
EGRs blanked
Running boards
3 flash indicators and clock on dash
Blingy grille... 
 
Post #17986921st Apr 2017 7:53 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

that's why i also bought one, as a preventive measure

also took me a while to find the pipe

tucked down between the expansion bottle and edge of the rad

then thought as an overkill to extend it and tuck it well out of the way
  
Post #17987021st Apr 2017 8:08 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

trailhound wrote:
Pete K wrote:
So it should be near the coolant bottle.
DOwn the side of the radiator.

The other place you can see it sometimes is in the wheel arch at the front, near the large pipes. Even a joint there


Mine is definitely not there. Hopefully a previous owner has routed it somewhere clever - I'll check the wheel arch.

Hope it's not missing altogether.


know it's well tucked out of the way

if u look between the expansion bottle and right hand side of the rad it can sometimes be tucked below the hoses

the head of the old axle breather is only slightly larger than the 6mm pipe
  
Post #17987041st Apr 2017 8:11 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

I've had the pipe from the auto-box to the rad off to make way for my torch. Nothing in sight Shocked . I've found a schematic of where it attached to the diff so should be able to trace it. Think I should run a book on where it ends up or stick to the grand national...
  
Post #17987121st Apr 2017 8:30 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Trouble is its well hidden on most of its route.
  
Post #17987201st Apr 2017 8:38 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Thanks Pete K, it looks from the schematic that it does/should indeed head towards the wheel arch then wiggle its way up. Will report back tomorrow.
  
Post #17987241st Apr 2017 8:46 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

You need to see the silver inter cooler pipe and then feel round it.
  
Post #17987291st Apr 2017 8:59 pm
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