Advertise on DISCO4.COM
Forum · Gallery · Wiki · Shop · Sponsors
DISCO4.COM > Webasto Fuel Burning Heater

FBH battery drain
Post Reply  Down to end
Page 1 of 2 12>
EIG
 


Member Since: 12 Feb 2009
Location: Enniskillen
Posts: 226

United Kingdom 2009 Discovery 4 3.0 TDV6 GS Auto Stornoway GreyDiscovery 4
FBH battery drain

Its that time of the year again for the FBH and I was wondering just how much drain the FBH puts on the main battery.

I'm thinking - when its operated by timer or remote the interior fans etc are triggered and are probably left running for 20 mins or so without the engine running. Is there a modification for the FBH or interior fans or both to be powered from the aux battery instead of the main battery or is the power drain negligible.
 Jim

2009 D4 GS
2005 D3 SE (Gone)
2002 D2 2.5 Td5 Facelift
1993 Defender 90 200Tdi
1990 Defender 90 200Tdi (Gone)
1985 90 NA 2.5 (Gone)
1984 Range Rover 3.5V8 (Gone) 
 
Post #187786210th Nov 2017 10:09 am
View user's profile Send private message View poster's gallery Reply with quote
Hardware17
 


Member Since: 28 Jun 2016
Location: Manchester
Posts: 1685

England 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

i'd need to check exact number but I believe it monitors both battery and fuel and cuts out if either hit a lower limit.
 Dean.
====================================
2011 D4 XS - OBD port custom protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #187787110th Nov 2017 10:34 am
View user's profile Send private message View poster's gallery Reply with quote
EIG
 


Member Since: 12 Feb 2009
Location: Enniskillen
Posts: 226

United Kingdom 2009 Discovery 4 3.0 TDV6 GS Auto Stornoway GreyDiscovery 4

Sounds good and it does make good sense when you think about it - no point in having a nicely defrosted and heated car that won't start. Embarassed Thumbs Up

I'd still be interested in a modification tbh.
 Jim

2009 D4 GS
2005 D3 SE (Gone)
2002 D2 2.5 Td5 Facelift
1993 Defender 90 200Tdi
1990 Defender 90 200Tdi (Gone)
1985 90 NA 2.5 (Gone)
1984 Range Rover 3.5V8 (Gone) 
 
Post #187787310th Nov 2017 10:42 am
View user's profile Send private message View poster's gallery Reply with quote
TigerRecovery
 


Member Since: 31 May 2017
Location: Rugby
Posts: 237

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Orkney GreyDiscovery 4

A warmer engine/battery is easier to start than a cold one. You don't need to use the glow plugs which are a much higher drain than the FBH.
 1972 Range Rover Classic 2 door V8
2001 Mercedes Sprinter 4x4 with winch
2013 Land Rover Discovery 4 HSE
2017 Land Rover Discovery Sport HSE Black (The wife's car) 
 
Post #187787510th Nov 2017 10:50 am
View user's profile Send private message View poster's gallery Reply with quote
Gazellio @ Prestige Cars
Site Sponsor 


Member Since: 08 Jan 2011
Location: Chilterns- Site Sponsor
Posts: 3231

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

After using the remote FBH function this morning my temp gauge showed a 1/4 or 50% warm on the temp gauge. So stress free engine starting and no glow plug use.
 
We buy forum member cars - PM to get a quote. http://www.garyelliott.co.uk 
 
Post #187787710th Nov 2017 10:54 am
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
EIG
 


Member Since: 12 Feb 2009
Location: Enniskillen
Posts: 226

United Kingdom 2009 Discovery 4 3.0 TDV6 GS Auto Stornoway GreyDiscovery 4

As a matter of interest how long was it running before you started the engine.
 Jim

2009 D4 GS
2005 D3 SE (Gone)
2002 D2 2.5 Td5 Facelift
1993 Defender 90 200Tdi
1990 Defender 90 200Tdi (Gone)
1985 90 NA 2.5 (Gone)
1984 Range Rover 3.5V8 (Gone) 
 
Post #187787910th Nov 2017 10:58 am
View user's profile Send private message View poster's gallery Reply with quote
Gazellio @ Prestige Cars
Site Sponsor 


Member Since: 08 Jan 2011
Location: Chilterns- Site Sponsor
Posts: 3231

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Sorry did not time it just the full cycle as factory programmed I guess. My guess 10 minutes.
 
We buy forum member cars - PM to get a quote. http://www.garyelliott.co.uk 
 
Post #187788110th Nov 2017 10:59 am
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
nigel207
 


Member Since: 26 Mar 2009
Location: Nottinghamshire
Posts: 936

England 2010 Discovery 4 3.0 TDV6 HSE Manual Bali BlueDiscovery 4

Coincidentally I started the FBH with the remote a couple of days ago. It ran fine for a while, but when I went outside it had stopped. I thought that it must have run its cycle as I didn’t really take notice of how long it had been running for. When I entered the car, there was a message on the dash ‘Battery Level Low, Start Engine’. The car started fine thank goodness.

However, what was annoying was that I replaced the original LR battery (7-8 years old) earlier this year for a new one (recommended on this forum). I never had an issue with the old battery (which I still have), so am hoping that it was just a that the battery needed a boost as I had started the engine several times the previous day but only driven 2-3 miles. Ctek duly plugged in!

We’ll see, but to answer the question, the FBH cuts out to protect the battery power.
  
Post #187788610th Nov 2017 11:03 am
View user's profile Send private message View poster's gallery Reply with quote
Hardware17
 


Member Since: 28 Jun 2016
Location: Manchester
Posts: 1685

England 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

30 minutes on timed climate
 

Last edited by Hardware17 on 10th Nov 2017 11:42 am. Edited 1 time in total 
Post #187788710th Nov 2017 11:04 am
View user's profile Send private message View poster's gallery Reply with quote
EIG
 


Member Since: 12 Feb 2009
Location: Enniskillen
Posts: 226

United Kingdom 2009 Discovery 4 3.0 TDV6 GS Auto Stornoway GreyDiscovery 4

Thumbs Up It has to be good as previously stated - and reduced cold start engine wear. I 've ordered my remote from Bodsy the other day so I should be up and running soon.
 Jim

2009 D4 GS
2005 D3 SE (Gone)
2002 D2 2.5 Td5 Facelift
1993 Defender 90 200Tdi
1990 Defender 90 200Tdi (Gone)
1985 90 NA 2.5 (Gone)
1984 Range Rover 3.5V8 (Gone) 
 
Post #187788810th Nov 2017 11:05 am
View user's profile Send private message View poster's gallery Reply with quote
Gazellio @ Prestige Cars
Site Sponsor 


Member Since: 08 Jan 2011
Location: Chilterns- Site Sponsor
Posts: 3231

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Hardware17 wrote:
30


30 Minutes factory run time?
 
We buy forum member cars - PM to get a quote. http://www.garyelliott.co.uk 
 
Post #187788910th Nov 2017 11:07 am
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
EIG
 


Member Since: 12 Feb 2009
Location: Enniskillen
Posts: 226

United Kingdom 2009 Discovery 4 3.0 TDV6 GS Auto Stornoway GreyDiscovery 4

nigel207
We all know that from now on the battery will have to work a good bit harder as much more demand is put on it with increased use of lights, heated windows, fans & FBH etc - hence my interest in a mod to divert some of the increased load to the auxillary battery for those who have one fitted.
 Jim

2009 D4 GS
2005 D3 SE (Gone)
2002 D2 2.5 Td5 Facelift
1993 Defender 90 200Tdi
1990 Defender 90 200Tdi (Gone)
1985 90 NA 2.5 (Gone)
1984 Range Rover 3.5V8 (Gone) 
 
Post #187789010th Nov 2017 11:12 am
View user's profile Send private message View poster's gallery Reply with quote
Hardware17
 


Member Since: 28 Jun 2016
Location: Manchester
Posts: 1685

England 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

Gazellio @ Prestige Cars wrote:
Hardware17 wrote:
30


30 Minutes factory run time?


yes ... edited my post. hit "post" on phone toooo soon and there is no edit on the mobile site.
  
Post #187790710th Nov 2017 11:44 am
View user's profile Send private message View poster's gallery Reply with quote
Gazellio @ Prestige Cars
Site Sponsor 


Member Since: 08 Jan 2011
Location: Chilterns- Site Sponsor
Posts: 3231

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

^ is there a cut out if the engine coolant reaches its required temp earlier than 30 minutes?
 
We buy forum member cars - PM to get a quote. http://www.garyelliott.co.uk 
 
Post #187791610th Nov 2017 12:33 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
cosmic329
 


Member Since: 17 Dec 2013
Location: Chichester
Posts: 116

England 2012 Discovery 4 3.0 SDV6 HSE Auto Indus SilverDiscovery 4

I thought it was only 20 mins factory set on the D4 - at least that is what mine does. The BAS remote for the D3 used to do 30 but then it did not do the fans which the D4 does. Think the Altox one can be programmed for longer.

Jim - if you have not got the Aux battery fitted yet, then look at the Traxide SC80 or one of their other isolators - I have just bought one for mine (but not yet fitted). This shares the load between the cranking battery and the aux and so in theory you will get less Battery Low messages even after using the timed climate.

I can only get about 4 timed climates from mine per week without it cutting the time short unless I have driven a reasonable journey. I would expect that given I only normally do a short school run in the morning and all the kids insist on having the seat heaters on - plus the heated screens when it is frosty, etc. My battery was new 9 months ago so think this is the best I will get. I normally give it an overnight conditioning charge once a week unless I use it for a long journey over the weekend.
 
Discovery 4 SDV6 HSE '61 - Remote climate kit, Heated steering wheel upgrade, LED interior lights, LED reverse lights, Foglight DRLs, Disco4 sticker!

Discovery 3 Tdv6 HSE '56 - gone
Defender 90 Tomb Raider '51 - gone
Defender 110 XS '54 - gone 
 
Post #187801610th Nov 2017 5:17 pm
View user's profile Send private message View poster's gallery Reply with quote
Display posts from the last:  
Post Reply Back to top
Page 1 of 2 12>
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO4.COM Copyright © 2004-2017 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums Follow DISCO4.COM on twitter

DISCO4.COM is independent and not affiliated to Land Rover.
Switch to Mobile Site