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Webasto working but little heat to engine and cabin
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Dennisvogelius
 


Member Since: 19 Nov 2021
Location: Vilnius
Posts: 14

Lithuania 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Kaikoura StoneDiscovery 4
Webasto working but little heat to engine and cabin

Hey guys. My disco4 webasto start and work sort of good
Problem is that I find that is am getting to little warmth in the cabin. It barely melts snow and ice. Secondly is the engine cold still when starting and it takes a while before warm.

I can live with a cold cabin, but sure would like the coolant water to be warmer to avoid coldstarts.

I live in Lithuania, and it gets cooooollld in the nights, and it is hard on the engine when starting
  
Post #227466324th Jan 2022 6:33 am
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Trailered Movements
 


Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1198

United Kingdom 2011 Discovery 4 3.0 SDV6 Commercial Auto Sumatra BlackDiscovery 4

Try taking the fuse out, number 2 in the engine compartment, for a couple of minutes.

It worked for me.


Dave
 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago) 
 
Post #227466924th Jan 2022 7:59 am
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

are you sure its working before you start the engine, it may have started up then cut out due to low voltage.
 Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE 
 
Post #227467224th Jan 2022 8:14 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

And you need to make sure you have enough fuel in the tank, not less than 1/4 full.

Flack Thumbs Up
  
Post #227467524th Jan 2022 9:08 am
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Dennisvogelius
 


Member Since: 19 Nov 2021
Location: Vilnius
Posts: 14

Lithuania 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Kaikoura StoneDiscovery 4

I know that it is running. The exhaust melts the snow under the car.

I will try with fuse 2, when I get to the car again tonight and it is nice and cold
  
Post #227469224th Jan 2022 11:14 am
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Trailered Movements
 


Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1198

United Kingdom 2011 Discovery 4 3.0 SDV6 Commercial Auto Sumatra BlackDiscovery 4

Also, do you leave your heat controls on, ie. at least the fan on minimum when you switch off?


Dave
 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago) 
 
Post #227472724th Jan 2022 3:44 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

My D4 Webasto is wonderful, no exaggeration the heat hits you when the door is opened and very rarely is it running for more than 15 minutes, mine was factory fitted with remote, only mod to it I did pinch the silencer off the D3 Very Happy
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #227473724th Jan 2022 4:27 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10337

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Guessing here

1. The heater has two heat modes. I wonder if it’s failed and somehow in low
Mode.

2. Maybe the heater matrix is partly blocked. Common on D3
  
Post #227474824th Jan 2022 5:17 pm
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jonnyboy54321
 


Member Since: 14 Jul 2012
Location: surrey
Posts: 109

United Kingdom 2013 Discovery 4 3.0 SDV6 GS Auto Indus SilverDiscovery 4

M3DPO wrote:
My D4 Webasto is wonderful, no exaggeration the heat hits you when the door is opened and very rarely is it running for more than 15 minutes, mine was factory fitted with remote, only mod to it I did pinch the silencer off the D3 Very Happy
what do you mean ref silencer? Intrigued!  
Post #227475824th Jan 2022 5:47 pm
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

Is the water pump working?
 Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE 
 
Post #227476824th Jan 2022 6:24 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

If it runs as a PARKING Heater… (so no engine running)
It does NOT get the engine warm to full operating temp in half an hour when really cold…
Then they need more time with such a big engine….

I have an Altox and can vary the running time, so 45min or even 60 min when it is really freezing below minus “al lot”





I do not know, as i do not have a D4 if the running time can be varied…


Fuse pulling is only when it it needs a reset, has nothing to do with this… since it is running…
Some versions, have an extra controled valve…. Who steers ALL the heat to the engine, and only opens when the water is 70 degrees celcius, to the cabin heater matrix….

This valve is an option…….. you still need to lengthen the running time when it is colder than minus 0 degrees celcius…..

The optional valve:
Click image to enlarge
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #227479324th Jan 2022 8:11 pm
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Trailered Movements
 


Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1198

United Kingdom 2011 Discovery 4 3.0 SDV6 Commercial Auto Sumatra BlackDiscovery 4

Fuse pulling is only when it it needs a reset, has nothing to do with this… since it is running…


Not so, mine was running, but not blowing heat into the car, a reset cured all.


Dave
 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago) 
 
Post #227479524th Jan 2022 8:16 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Ok, thought you meant the webasto fuse, seems your fuse 2 does reset something else in the car… my fault… sorry..

I meant, resetting the Webasto fbh…
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #227479724th Jan 2022 8:29 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

jonnyboy54321 wrote:
M3DPO wrote:
My D4 Webasto is wonderful, no exaggeration the heat hits you when the door is opened and very rarely is it running for more than 15 minutes, mine was factory fitted with remote, only mod to it I did pinch the silencer off the D3 Very Happy
what do you mean ref silencer? Intrigued!


D3 has a silencer on the heater exhaust, D4 doesn’t, mine has now Very Happy
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #227479824th Jan 2022 8:39 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Could the engine thermostat be stuck open?
My old D3 FBH never ever got as hot as the D4 does.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #227479924th Jan 2022 8:45 pm
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