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Top Hose Failure
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BJT
 


Member Since: 16 Nov 2017
Location: Staffordshire
Posts: 92

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4
Top Hose Failure

Arrived home last night with "Low Coolant Level" flashing at me intermittently and a lot of steam coming from under the bonnet, with that lovely cooking anti freeze smell. Rang LRA and had an engineer booked for this morning, when he arrived immediately diagnosed a split top hose ( LR095544) the one that goes from top of rad & under the plastic engine cover to top of heads.

No hoses available local to me Big Cry

Sourced one at a dealer 40 miles away, collected and fitted within 3 hours Very Happy

Different protective braid design on the new one , much longer run and slightly different angle of hose, clearly LR have had issues with these being worn away by the plastic cover.

Delighted with service and attitude of LRA engineer.
  
Post #189274921st Dec 2017 2:05 pm
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teddy
 


Member Since: 22 Jul 2017
Location: suffolk
Posts: 72

United Kingdom 2009 Discovery 4 3.0 TDV6 HSE Auto Ipanema SandDiscovery 4

Had this happen to me 2 days ago. Hose had worn through from wearing on the engine cover, engine got hot (not on the gauge - I do keep an eye on it) and it blew the plastic fitting off from where the hose joins the top of the engine. Low coolant light only came on once hose had blown.

Luckily I was 500 yrds from work car park where there is a mechanic in the next unit so managed to get hose sent from Cambridge LR next day and fitted yesterday and system filled up and bled.

I wonder how many more of these will go on similar age/mileage D4s? Mine is 09 reg with 104k.
  
Post #18973534th Jan 2018 1:26 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Having been informed of this issue recently by another who’s had worn through, I cut back the engine cover on mine and when doing the coolant service this week, replaced that hose and the plastic engine outlet it connects to (also known for splitting). Mine had a small cut down to the first layer of webbing.
  
Post #18976925th Jan 2018 2:21 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73089

Ukraine 

Any pics of where I need to look to see if pipe is ok, which bit to remove and trim etc? Question Question
   
Post #18977595th Jan 2018 10:10 am
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Here

  
Post #18977665th Jan 2018 10:28 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73089

Ukraine 

Thumbs Up Bow down Bow down Willl have a look. Thumbs Up
   
Post #18977695th Jan 2018 10:33 am
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teddy
 


Member Since: 22 Jul 2017
Location: suffolk
Posts: 72

United Kingdom 2009 Discovery 4 3.0 TDV6 HSE Auto Ipanema SandDiscovery 4

This was the state of mine.
  
Post #18977755th Jan 2018 10:40 am
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Just checked mine, ordering a new hose now Shocked

Thanks for tip


  
Post #18977995th Jan 2018 12:08 pm
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BJT
 


Member Since: 16 Nov 2017
Location: Staffordshire
Posts: 92

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

teddy wrote:
This was the state of mine.


That's exactly how mine looked, well worth checking irrespective of age or mileage .
  
Post #18978085th Jan 2018 12:43 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20844

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Seen this happen a few times now...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #18978105th Jan 2018 12:50 pm
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robpenrose
 


Member Since: 12 Jan 2016
Location: Surrey / SW London
Posts: 2138

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Is there a How To guide anywhere for this? Would be useful if someone does one as it looks in a DIY able area.

I cant imagine you would loose much coolant at that height, but maybe you would get air in the system??

I will go and check mine shortly...
 

Current: D4 HSE
Previous: BMW Z4M Coupe
Previous: Land Rover Defender 90 CSW Td5
Previous: Land Rover Discovery Td5 ES 
 
Post #18978295th Jan 2018 1:39 pm
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swansty
 


Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 939

Northern Ireland 2010 Discovery 4 3.0 TDV6 XS Auto Zermatt SilverDiscovery 4

Its a pressurised system and water will take the path of least resistance. You will loose coolant until the pump can no longer circulate it.

I suffered the same thing after a service when the engine cover wasn't replaced correctly though luckily I noticed the wear just before it went right through. LR said the top hose wasn't available separately and wanted a huge amount of cash for a spaghetti hose assembly but the indy got the top hose on its own.
  
Post #18978475th Jan 2018 2:20 pm
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robpenrose
 


Member Since: 12 Jan 2016
Location: Surrey / SW London
Posts: 2138

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

I just meant you wouldn't lose much coolant if you were to change it out as its high up. If you were to change a lower hose, the hole system above that point you try to empty itself.

Just checked mine. All clear and no sign of any witness marks. Thumbs Up
 

Current: D4 HSE
Previous: BMW Z4M Coupe
Previous: Land Rover Defender 90 CSW Td5
Previous: Land Rover Discovery Td5 ES 
 
Post #18978535th Jan 2018 2:37 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

I wonder whether sudden and massive coolant loss on a red hot slightly sensitive engine will hold any issues for the future?
  
Post #18978645th Jan 2018 3:01 pm
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Jubbly
 


Member Since: 20 Nov 2016
Location: Stourbridge
Posts: 401

United Kingdom 

might it be worthwhile just wrapping some of the black hose repair tape to prevent this instead of ordering a new hose?

I'm talking about owners with hoses not yet split.
 Jaguar I-Pace HSE imminent.
Gone HSE with Flappy Paddles. IID BT tool. RLD Spare Protector, Altox GPS.

 
 
Post #18979205th Jan 2018 5:50 pm
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