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Iammatthewwatkins
Member Since: 23 Nov 2021
Location: Bridgend
Posts: 4
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Hello! I’ve just had a diagnostics run on my disco 3 (07 2.7 TDV6 SE) and one of the error codes was that the FBH is in lock out mode. I tried the fuse removal trick to try and reset it and then took the car for a little run (10-15 mins). The FBH was warm when I got back home. Does this mean the FBH was successfully reset or would it have warmed passively from the heat of the engine?
Thanks, Matt.
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 6th Dec 2021 7:50 am |
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DWDG
Member Since: 27 Jul 2020
Location: Bedford
Posts: 101
 
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I did the reset on mine and bonnet open can hear it whirring after turning the engine off. It lasts for about 30 secs to a minute. 2007 Discovery 3 HSE Lugano Teal
2011 BMW 520d Touring Sophisticato Grey
2000 Porsche Boxster 2.7 Arena Red
2002 Porsche 911 3.6 C4 Cabriolet Artic Silver - sold last year
1987 Porsche 944S Black - sold last year
2006 Discovery 3 HSE Buckingham Blue - sold last year
2012 Ford Grand CMax Panther Black (wife’s) wish we’d sold that instead!
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| 6th Dec 2021 8:31 am |
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Iammatthewwatkins
Member Since: 23 Nov 2021
Location: Bridgend
Posts: 4
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Fantastic - that's what mine is doing now! Thanks for your help.
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| 6th Dec 2021 3:19 pm |
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Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
 
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The simplest check is to run the engine when it is colder than 7 deg celcius wait a few minutes.. 5 minutes is sufficient and put your hand under the front of the motor/car left side, between the bumper and the front wheel and feel the exhaust gasses (warm/hot) comming out of the FBH exhaust….
Feeling the temp of the unit itself on the engine bay says nothing, because that is the water temperature… 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. 
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| 6th Dec 2021 9:11 pm |
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Jordan1223
Member Since: 30 Dec 2023
Location: Skopje
Posts: 15
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I had the code 02h and i did use a matress blower and it seemed it fixed the problem i changed the co2 adjustment to abit higher lever and it said that the fan is blowing at 100%. Than it was working. I disconected everything and tried again in parking mode without the blower and it threw up the same c9de again. Is there any co2 settings i can do or what could be the issue now ? Working with air blower and cutting off without. ?
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| 4th Jan 2024 1:05 pm |
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Unbeliever
Member Since: 28 Aug 2022
Location: South Yorkshire
Posts: 27
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I had to run mine with compressed air up the inlet about half a dozen times whilst adjusting the CO2 setting. For me perseverance paid off and it eventually would run a full cycle on its own. I'm assuming that it was coked/choked up somewhere and the increased heat did the trick.
That was last winter and it still fires up and runs now. I have ran it occasionally through the year to make sure it still worked/clear any clag... MY06 D3 SE 2.7 V6
MY15 FL2 SE 2.2 I4
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| 4th Jan 2024 6:14 pm |
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Jordan1223
Member Since: 30 Dec 2023
Location: Skopje
Posts: 15
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I ran the diagnostics and it was running to full cycle mode and i could change the co2 settings and did so , however after 10 minutes or so it was still running to full cycle mode , what do i do usually to stop it or it takes a longer time to do what it needs to do while connected to the diagnostics ?
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| 9th Jan 2024 8:17 am |
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Worms
Member Since: 24 Sep 2023
Location: Highlands
Posts: 395
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As far as I can tell, if you use the Webasto diagnostics to start the FBH, it will run until it reaches the pre-set time-out or temperature max, unless you switch it off again with the Diagnostics, or pull the fuse.
Time out seems to be set at 255 mins and when I omitted to turn mine off it reached temperature max somewhere between 90C and 95C for FBH coolant temperature (which was about 84C-90C for engine coolant temperature).
If you use the GAP IID test-function, it will time-out at 300s, which is well below temp max. Previously:
2010 FL2 TD4e GS
‘93 Defender 110 200TDi CSW - still got this, non-runner on SORN.
‘87 Defender 90 4 cyl Petrol
‘83 110 CSW V8 - best ever!
Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch)
Series III SWB Diesel
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| 9th Jan 2024 9:02 am |
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