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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3
FBH

FBH suppose to switch on auto if the temp outside is below 7deg and/ coolant is less than 75deg but if the air con and blowers are switch off should the FBH still come on with the engine running of course
Any ideas cheers
  
Post #192724817th Mar 2018 7:08 pm
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zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 570

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Fbh only works if the fans are turned on. All the information you need is on the wiki page.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192725217th Mar 2018 7:16 pm
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mick_n3
 


Member Since: 19 May 2017
Location: Kettering
Posts: 260

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3
Re: FBH

mid wrote:
FBH suppose to switch on auto if the temp outside is below 7deg and/ coolant is less than 75deg but if the air con and blowers are switch off should the FBH still come on with the engine running of course
Any ideas cheers


Yes
 
M6NIO 
 
Post #192728917th Mar 2018 8:19 pm
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Thanks Pete Thumbs Up
  
Post #192729117th Mar 2018 8:22 pm
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Confusing now Mick is saying yes! Is that yes it should still fire up with all the air con and fans off or yes to Petes answer? Confused
  
Post #192730717th Mar 2018 8:40 pm
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Rob9990
 


Member Since: 06 May 2017
Location: Southeast
Posts: 71

United Kingdom 2009 Discovery 3 TDV6 HSE Auto Santorini BlackDiscovery 3

My fbh fires up regardless. If fans aren't on engine still needs to get up to temp.
  
Post #192730817th Mar 2018 8:41 pm
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mick_n3
 


Member Since: 19 May 2017
Location: Kettering
Posts: 260

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

mid wrote:
Confusing now Mick is saying yes! Is that yes it should still fire up with all the air con and fans off or yes to Petes answer? Confused


It starts automatically if within certain parameters to assist in warming the engine up to improve emissions, the heater fans have no effect on it at all.
 
M6NIO 
 
Post #192732217th Mar 2018 8:55 pm
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Tried mine this morning with the fans off for about 3or4 mins thinking it would heat up quicker,but when I switched the fans on I got cold air, checked the exhaust pipe and it was cold so obviously didn't fire up
Got back in the car turned on the air con and fans on and got warm air coming out in next to no time
Hence my query!
  
Post #192732817th Mar 2018 9:07 pm
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

mick_n3 wrote:
mid wrote:
Confusing now Mick is saying yes! Is that yes it should still fire up with all the air con and fans off or yes to Petes answer? Confused


It starts automatically if within certain parameters to assist in warming the engine up to improve emissions, the heater fans have no effect on it at all.


That does make sense I must admit, it maybe me being a bit inpatient
  
Post #192733317th Mar 2018 9:11 pm
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zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 570

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

The fbh will only work while the heater control panel is on, but doesn’t matter what setting it’s on. If the “off” light is lit up then the fbh will not fire up.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192743218th Mar 2018 12:38 am
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Thumbs Up I'll go through the procedure again and see what happens
  
Post #192747318th Mar 2018 9:58 am
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 128

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Well did the procedure again this cold and chilly morning, switched fans off put Econ button on =
(air con off) waited a couple of mins felt the FBH exhaust and it was hot, turned the blowers on and I got warm air coming through
  
Post #192762018th Mar 2018 3:02 pm
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