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cold heater
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toby653
 


Member Since: 16 Dec 2011
Location: ypres
Posts: 26

Belgium 2005 Discovery 3 TDV6 S Auto Java BlackDiscovery 3

i have fitted a new thermastat and it is no better ref heater being cold all that has changed is the engine will get up to almost normal temperature (the guage needle will be just below horizontal after about 10 miles of driving and stays there. still bubbly i the coolant bottle but its still going! no water in the oil etc and goes as well as it has done over the the last 299, 988 miles apart from some minor issues. I will clock 300,000 on my way to work later tonight!!!
  
Post #87530524th Dec 2011 8:56 pm
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toby653
 


Member Since: 16 Dec 2011
Location: ypres
Posts: 26

Belgium 2005 Discovery 3 TDV6 S Auto Java BlackDiscovery 3

just remembered what I forgot to add is that my fuel economy is dropping is is down to 19 mpg on the dash when is normally reads 29 or more and it is using more diesel would this be caused by a head gasket or cylinder head problem? all seems odd to me
  
Post #87534724th Dec 2011 10:50 pm
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camelrock
 


Member Since: 11 Oct 2008
Location: north yorkshire
Posts: 425

England 

I think I would be checking for a seized vicous fan. Does it sound noisy ? You would be down slightly on power and use more fuel, you would also be running cooler as the fan is over cooling the engine.
  
Post #87548725th Dec 2011 9:56 pm
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toby653
 


Member Since: 16 Dec 2011
Location: ypres
Posts: 26

Belgium 2005 Discovery 3 TDV6 S Auto Java BlackDiscovery 3
Cold heater etc SOLVED

Hi

Many thanks for all your replies. I fitted a nre thermostat as mentioned and it was no better but after sitting looking at the old one on my desk two days after me I noticed that the old thermostat didnt have a copper sleeve in the midddle of the thermostat like the new one did. Took the new one back off just to make sure and to cut a long story short I forund this part stuck in one of the heater hoses! Part removed and hot heater I am so happy but couldnt believe quite the symptoms that it showed and it took several attemps with the engine running whilst bleeding the cooling system to renmove the all of the air
  
Post #8794965th Jan 2012 10:32 pm
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Hodko
 


Member Since: 11 Jan 2016
Location: Cheshire
Posts: 8

United Kingdom 2005 Discovery 3 TDV6 GS Auto Barolo BlackDiscovery 3

At the risk of ambushing somebody else's thread, I have a disco 3 where the heater only blows out warm air on the drivers side, and cold air on the passengers side. No matter what I do to the settings, it still blows cold air out.

Any thoughts?
  
Post #159101011th Jan 2016 4:25 pm
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AlexandreD3
 


Member Since: 29 Jan 2016
Location: Belo Horizonte
Posts: 2

Brazil 2007 Discovery 3 TDV6 HSE Auto Aintree GreenDiscovery 3
Air condicionar

dear Friends, I have just got a problem in the air conditioner that is giving us a lot of work and we are spending a lots of money trying to solve. It is a disco 3 diesel HSE 2.7 . suddenly the cold air stop working and a hot air start coming. We already check gas, compressor escaping and radiator fan. The specialist in air conditioner are trying to understand what is going on since there is no reason to the compressor stop working . The car is already 125.000 km . Does someone faced that problem and have some advice?
  
Post #160112129th Jan 2016 2:16 am
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RBS6K
 


Member Since: 05 Dec 2015
Location: Tipperary
Posts: 28

Ireland 2006 Discovery 3 TDV6 Commercial Auto Zambezi SilverDiscovery 3
One sided heat!!

If I could tag in to this thread... I have noticed that I only have heat on the drivers side of the cabin, the passenger side is always cold air. I have a base spec commercial so there is no air con or split climate function so I'm hoping this might be an easy fix.. it also appears that the air coming out from the foot well is hotter than the console or demister vents.

Thanks in advance,

Richie
  
Post #176668221st Jan 2017 1:44 pm
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