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05D3 - internal heating
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Narpy
 


Member Since: 18 Jul 2011
Location: Stockport
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2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

I think you need to go with that gut feeling and replace the matrix. Thumbs Up
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Last edited by Narpy on 29th Nov 2016 1:03 pm. Edited 1 time in total 
Post #174085628th Nov 2016 8:42 pm
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SumpNut
 


Member Since: 08 Feb 2016
Location: Derby
Posts: 35

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Arctic FrostDiscovery 3

DaveJLBI wrote:
Had a root around under the bonnet, the flow and return (Heater hose in and out on the diagrams) are nice and hot so heat is heading in but appears not to be getting into or through the matrix - am I correct?

Should I seek someone here that can flush it? Is there anything that I need to highlight?

Thanks in advance


If both the feed and return are warm - would this not indicate that water is flowing through the matrix?

I would imagine if the matrix was blocked there would be no water flow as a result surely the pipes would be cool to the touch?
  
Post #174111129th Nov 2016 12:34 pm
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DaveJLBI
 


Member Since: 07 Mar 2014
Location: Clare
Posts: 661

Ireland 2014 Discovery 4 3.0 TDV6 HSE Auto Loire BlueDiscovery 4




Is the matrix a simple in and out pipe with fins coming off it or is a more complex structure with smaller pipe network and associated fins? See pic of D3 matrix

Otherwise it is looking like it might be the blender flap


  
Post #174112829th Nov 2016 1:10 pm
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DaveJLBI
 


Member Since: 07 Mar 2014
Location: Clare
Posts: 661

Ireland 2014 Discovery 4 3.0 TDV6 HSE Auto Loire BlueDiscovery 4

A little more research today shows the heater blending flaps openning and closing - very handy USB boroscope helped out.

More and more looks like the matrix, anyone have an idea of time and cost involved for a dealer to swap out?
  
Post #17424451st Dec 2016 3:33 pm
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DR3
 


Member Since: 19 Apr 2017
Location: Munster
Posts: 20

Ireland 2008 Discovery 3 TDV6 Base 5 Seat Auto Indus SilverDiscovery 3
05D3 - internal heating

Hi Dave, I know it was a bit ago but did you ever resolve this, I am having very similar issues. Heat works very well on the driver side but no heat on the passenger. Mechanic has said to replace this matrix at 300 euro approx.
  
Post #213035422nd Mar 2020 12:36 am
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DaveJLBI
 


Member Since: 07 Mar 2014
Location: Clare
Posts: 661

Ireland 2014 Discovery 4 3.0 TDV6 HSE Auto Loire BlueDiscovery 4

Yes, I had the matrix replaced shortly after that and it was like night and day. Best €300 I spent. I had it done at a LR specialist rather than a dealer
  
Post #213163625th Mar 2020 6:27 pm
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DaveJLBI
 


Member Since: 07 Mar 2014
Location: Clare
Posts: 661

Ireland 2014 Discovery 4 3.0 TDV6 HSE Auto Loire BlueDiscovery 4

HAd it done at Singland Motors in Limerick
  
Post #213163725th Mar 2020 6:27 pm
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DR3
 


Member Since: 19 Apr 2017
Location: Munster
Posts: 20

Ireland 2008 Discovery 3 TDV6 Base 5 Seat Auto Indus SilverDiscovery 3

Cheers, thanks. I'll be heading that way myself soon.
  
Post #213164225th Mar 2020 6:39 pm
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