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Minimum temp to not be a “cold” start
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zinke
 


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

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3
Minimum temp to not be a “cold” start

So now the wether is a bit warmer I’m running my heater so it’s not a “cold” start for the engine rather than running it to keep me warm.

So with that in mind, what’s the general consensus about what temp the coolant needed to be (measured at the fbh not the engine sensor) so the engine isn’t do a cold start and saving wear. Is 10 mins giving me a temp about 40 degrees enough or should I aiming for a higher temp?

Many thanks.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192460110th Mar 2018 1:34 pm
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zinke
 


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

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Nobody got any thoughts on this?

Pete.
 IID, webasto software and workshop facility's available.  
Post #192852120th Mar 2018 5:51 pm
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Space Cadet
 


Member Since: 05 Dec 2017
Location: Ingatestone
Posts: 266

United Kingdom 2014 Discovery 4 3.0 SDV6 XS Auto Santorini BlackDiscovery 4

I’m guessing you have the option to either prioritise the engine or the cabin, there’s a funky name for the valve that allows this, which comes as standard I think on HSE models.

For those without the valve on lesser models I think it prioritises the engine over the cabin and comes on automatically at below 6c so I guess this would be a good benchmark for you to also use.
  
Post #192853120th Mar 2018 6:18 pm
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zinke
 


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

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

I’m on a D3 so no valve, it just heats the whole system.

I’m on about coolant temp, not outside temp.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192860620th Mar 2018 8:14 pm
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marco 110
 


Member Since: 15 Nov 2009
Location: SALLES 33
Posts: 1009

France 2012 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

The "cut off" temp is 80° , exactly (sorry for my English) is the LDR temp is75 or 80° and/or outside temp 5/6° the webasto not fire.

After in winter , if needed the webasto fire to help keeping correct temp to the engine/ heater

From the Wiki :
Quote:
Automatic Operation - Smoke From Front of Vehicle
Outside air temp below 6 degrees C? Engine temp less than 75 degrees C? Low fuel warning light NOT on?
Then don't worry, its the Webasto Fuel Burning heater starting up.
The function of the heater is to assist the very efficient TDV6 to warm up on cold starts, by burning diesel fuel to directly heat the coolant in the engine. One problem with modern diesels is that they are so efficient that they don't produce enough heat to warm the coolant enough to ensure efficient running.
When it starts (after about 1 minute from initial engine start) it will emit some smoke and steam from the front of the front left wheel arch. As the FBH reaches max power, it will burn cleanly with no smoke. You should not see smoke for more than a minute or so. You should see the smoke emitting from a small vertical exhaust located forward of the left-side front wheel.
You cannot control the operation of the FBH on the D3 (unless you have modified it - see below), it is fully automatic.
 Marco.
-D4 sdv6 HSE 2012 , high beam assist , surround cam, tv , and a lot of nice stuff..

http://www.youtube.com/user/marcsteph110?feature=mhum

Ex :
-90 td 1989
-110sw td5 2000
-D3 tdv6 SE 2006

 
 
Post #192862420th Mar 2018 9:02 pm
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Space Cadet
 


Member Since: 05 Dec 2017
Location: Ingatestone
Posts: 266

United Kingdom 2014 Discovery 4 3.0 SDV6 XS Auto Santorini BlackDiscovery 4

zinke wrote:
I’m on a D3 so no valve, it just heats the whole system.

I’m on about coolant temp, not outside temp.

Pete.


I think it only heats to 40c regardless, so if it’s getting to that then that’s all it will do.
  
Post #192868620th Mar 2018 11:35 pm
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