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Is the D3 heater really this bad ?
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10forcash
 


Member Since: 09 Jun 2005
Location: Ubique
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt SilverDiscovery 3

The ATCM on the D3 is more than capable of maintaining the temperature you set, if it isn't doing so, theres a problem could be something as simple as low coolant or airlock, low refrigerant pressure or blocked filter or even a blocked pollen filter
  
Post #5476307th Nov 2009 11:58 pm
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
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Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Foam pad is the simplest solution to try first. Idea
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
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Post #5477038th Nov 2009 1:29 am
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Spooky
 


Member Since: 02 Jun 2009
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United Kingdom 

I've been noticing a requirement to increase the temp setting during a long(ish) drive, maybe this is the reason. Must have a look ...
 Regards,
Mick

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Post #5477458th Nov 2009 10:22 am
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bobic
 


Member Since: 02 Mar 2008
Location: Cork
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Ireland 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

I get no warm air from the heater unless its up full and then it is like being in an oven. Going in on Tuesday to get sorted, i hope Rolling Eyes
  
Post #5477648th Nov 2009 11:32 am
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NJSS
 


Member Since: 06 May 2009
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United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

ATCM ?

I thought it stood for All Terrain Control Module (or Association of Town Centre Managers) - clearly it also has something to do with heating?

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

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Post #5477658th Nov 2009 11:37 am
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CG
 


Member Since: 13 Nov 2007
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England 2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Gareth wrote:

there should be a foam insulator around the temp sensor. If its missing or displaced then the sensor picks up heat from behind the dash and keeps reducing the temperature of the hevac system to try and compensate.


No foam pad behind or around mine. I took the grill panel off, but you can't get to the back of the sensor with out taking the centre panel trim off,

You can then see the white tube protector for the sensor leads. I pack a bit of sponge around the back of the sensor to try and insulate it from the heater.
 
"I know that you believe that you understood what you think I said, but I am not sure you realize that what you read is not what I meant" 
 
Post #5479578th Nov 2009 9:24 pm
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TSR2
 


Member Since: 22 Jul 2008
Location: North Lincolnshire
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United Kingdom 2005 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Guys,
I have the same apparent heating problem and no foam around the sensor in mine either although I'm a bit reluctant to add something that doesn't appear to have ever been there?
Before I put the foam in can some one confirm categorically that there should be foam around it? Seems to me that we are just damping its sensitivity and stopping it from doing its job. Or is this just a case of poor design with the sensor being fitted near an abnormally warm section of the dash?

Trev.
  
Post #5479938th Nov 2009 10:04 pm
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caverD3
 


Member Since: 03 Jul 2006
Location: Oberon, NSW
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Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Foam pad was a dealer fix for the problem. Had mone done under warranty.
It was open cell foam (grey) Someone may have a photo.
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #5481789th Nov 2009 12:51 am
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JimboD3
 


Member Since: 23 Mar 2009
Location: Hertfordshire
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United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

This is the little grill just to the left of the steering column ?

Do you pull the little grill out to check for the foam pad, or the whole trim panel - I'm loathed to tug it too hard in case I break something.... Embarassed
 Jim
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Post #5484319th Nov 2009 5:32 pm
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John C
 


Member Since: 28 Aug 2007
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United Kingdom 2006 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3

Random thought - the FBH doesn't kick in when you're low on fuel does it - so presumably the cabin doesn't warm up as quickly? You've a decent amount of fuel in it haven't you?
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Post #5484389th Nov 2009 5:48 pm
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JimboD3
 


Member Since: 23 Mar 2009
Location: Hertfordshire
Posts: 348

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

John C wrote:
Random thought - the FBH doesn't kick in when you're low on fuel does it - so presumably the cabin doesn't warm up as quickly? You've a decent amount of fuel in it haven't you?


John,

Until this morning it's not been cold enough (below 6degC) for the FBH to fire up (and I've still not fiited the override timer Rolling Eyes ), but at 4degC this morning, the FBH fired up and did help to warm things up quicker than normal..........but I still had the temperature set to 26-28, and had the fan speed turned up to get things warm.

Gonna have a look at the aforementioned foam pad thing by the cabin temperature sensor - I just need to know how to get the grill off !
 Jim
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Non-standard Td5 110 Hardtop

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Post #5484429th Nov 2009 5:52 pm
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JimboD3
 


Member Since: 23 Mar 2009
Location: Hertfordshire
Posts: 348

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

JimboD3 wrote:
Gonna have a look at the aforementioned foam pad thing by the cabin temperature sensor - I just need to know how to get the grill off !


bump........can anyone shed any light on how this bit comes apart.........before i break it !!

Ta,
 Jim
Standard TDV6 HSE
Non-standard Td5 110 Hardtop

Club Traxide 
 
Post #54950111th Nov 2009 10:09 am
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TSR2
 


Member Since: 22 Jul 2008
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United Kingdom 2005 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Jimbo,
Its on clips just pull it the whole section comes out in one. Thumbs Up

Haven't put any foam in mine but I have centralised the thermocouple so that it doesn't touch the sides. Early days but it seems to have helped. Will test it over the next week. Thumbs Up

Trev.
  
Post #54953211th Nov 2009 11:12 am
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CG
 


Member Since: 13 Nov 2007
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England 2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Agree it just pulls off, but you cannot get to the back without taking another bit off - such as the centre panel surround.

I did try the bit of foam route but it does not seem to have helped on mine.
 
"I know that you believe that you understood what you think I said, but I am not sure you realize that what you read is not what I meant" 
 
Post #54961611th Nov 2009 2:09 pm
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GlosBoy
 


Member Since: 16 Oct 2009
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United Kingdom 2016 Discovery 4 3.0 TDV6 HSE Auto Aintree GreenDiscovery 4

Dumb question from a new owner of D3 (MY06).

What is the FBH people are referring to?

My heater appears OK but then it hasnt been that cold.

My only gripe about the heated seats is that I can't select just the back as I can in my BMW

Mark
  
Post #54966911th Nov 2009 4:23 pm
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