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Discovery 3 HSE HEATER PROBLEM.
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Dynamic Disco HSE
 


Member Since: 14 Jun 2018
Location: Hertfordshire
Posts: 5

United Kingdom 2009 Discovery 3 TDV6 HSE Auto Santorini BlackDiscovery 3
Discovery 3 HSE HEATER PROBLEM.

Hi,Having problems with my heater. Basically its gets hot the drivers side but not the passenger side. If you turn the temp up on passenger side its only luke warm but drivers side much hotter. if you turn heater to cold on passenger side it goes colder. i have replaced the blend motor on passenger side and also done heater calibration by holding down eco and rec buttons but this has also not fixed problem. I have also re gassed a/c and that seems to be working fine. its getting cold now and the wife is complaining!!  
Post #200092615th Nov 2018 6:38 pm
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zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Could be the heater maxtrix blocked internally, sometimes a good quality coolant flush and new coolant will help.

Pete. IID, webasto software and workshop facility's available.  
Post #200113116th Nov 2018 1:11 pm
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Dynamic Disco HSE
 


Member Since: 14 Jun 2018
Location: Hertfordshire
Posts: 5

United Kingdom 2009 Discovery 3 TDV6 HSE Auto Santorini BlackDiscovery 3

I was thinking the same myself. its a bit strange how drivers side is hot??  
Post #200114016th Nov 2018 1:29 pm
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zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

The way it works is one side gives hot air to driver and the other side to passenger. I believe they block up one side first.

Pete. IID, webasto software and workshop facility's available.  
Post #200114716th Nov 2018 2:09 pm
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DaveJLBI
 


Member Since: 07 Mar 2014
Location: Clare
Posts: 672

Ireland 2014 Discovery 4 3.0 TDV6 HSE Auto Loire BlueDiscovery 4

I had this and a replacement heater matrix worked perfectly. It was a pleasure once replaced! I got it done at an ex-LR garage in Limerick and it cost about €350 from memory incl labour. Some say it is a dash out job but I don't think it is, certainly don't think they did that for €350  
Post #200119716th Nov 2018 6:29 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10420

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I’ve seen the replace guide on here recently or rrsport  
Post #200121016th Nov 2018 7:30 pm
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