Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
Thnx Martin,
Ofcourse, you both are right.... i made a mistake regarding the number...
I should have mention PIN 3.... on a universal TTV that is the pin connected to a temp sensor (earth) meant for auxiliary heating....
The early D3 TTV pin out seems in function the same as a universal TTV, only the W-bus talks different, hence the telestart does not work but the 1533 does, and i suppose the CAN part is different..
If nobody knows if PIN 3 has a function on the D3, i will have a look on mine (in time)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.
12th May 2020 5:52 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Pin 3 is not populated/used on a D3 (or D4) and there is no OAT sensor fitted. The FBH receives the OAT data from the vehicle's sensor via CAN.
Not to be presumptuous, but yes, I am sure.Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
Ok, thnx for the info..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.
12th May 2020 6:37 pm
NC500
Member Since: 18 Sep 2017
Location: On the NC500
Posts: 541
Thanks Robbie - seal kit bought from Advanced, how to guide from you and a sunny morning pulling the fbh apart.
It was in good shape for a six year old car with 91k on the clock. The FBH is used daily in the winter so I was quite surprised!!
25th May 2020 12:33 pm
Huge Halford
Member Since: 30 May 2013
Location: West Midlands
Posts: 275
Hi guys,
Can I swap a fuel heater from a late model Discovery 4 into my 2005 Discovery 3Mods:-
Beanie Grill,Side Steps,Colour-coded wheel arches, Door handles and Bumpers,Rear Bumper Exhaust Trim,Remote Start FBH,2014 D4 rear lights,Reversing camera GVIF enabled,D4 Bluetooth Module, Puddle lighted wing mirrors
To do list:-
Waxoyl the Underside.
25th Oct 2020 2:51 pm
AndyViking
Member Since: 09 Aug 2007
Location: Kent
Posts: 269
Another big thanks to Robbie for this. Took the fbh out and gave it a full service with the help of my 12 year old daughter. It looked reasonably clean when I opened it, but the amount of soot that came out with a brush and carb cleaner was amazing. Refitted it with new gaskets, primed with the IID tool and test cycled - all ready for the winter.
One question - how do you uncouple the fuel pipe at the union that is buried in the engine bay? I couldn’t figure that out so decided to remove the clip from the rubber hose on the pipe at the fbh and fit a new one ear clamp when it all goes back together.D3 - 2008.5MY HSE, Stornaway Grey, RSE etc - all the toys
Grabber AT3s, Smoked Sweeping Side Repeaters
D4 Steering Wheel with BBS boards
IID BT Tool - happy to help with fault codes
11th Nov 2020 8:29 pm
Prette
Member Since: 16 Mar 2020
Location: Previously Stoke-ST4 (pre-pandemic), Mostly The Hague (NL) partially Lyngby (DK) certainly somewhere
Posts: 160
Erea wrote:
I can't get my FBH to stay going. After a few min I get fault code
B1D29-93 (2F) No start, even after restart attempt - Component failure - no operation
Watching it on an IID it appears that the fuel pump turns off first.
It runs and smokes the place out for about 3 min then shuts down. I got it running for about 6 min with compressed air before it shuts down. I've just ordered a cable from this site to connect to the PC. Do those in the know here think that I need to take it apart to clean the chamber while I'm waiting for the cable?
Thanks E
I was planning to write a post asking for some tips on why my FBH was giving the error (B1D29 No start, even after restart attempt). Basically it turned on for a minute or 2... some smoke came out pumps were on... same old same old... but then, it stopped.
As always... I searched in the forum and found some tip to blow compressed air in the FBH air intake. Well... I am on the road atm and do not have compressed air.
I took the little black round thing ( what is that and what is it used for anyway?? ) from the FBH and literally blowed (like a balloon) with all my lungs directly into that metallic tube. At first, I felt a bouncing back air, like something blocking the ways... I blowed again, and again, and again... then I heard a loud turbine-like noise and realised that the air fan was now blowing hard and the FBH was working great. I worked for several minutes... and only stopped when I turned the internal heating/ventilation off.
Botton line... top tip.. thanks a lot. Blow some compressed air (OR blow yourself into that metallic tube).
EDIT:
A quick update on that... after I did the above, the FBH worked a few times but then stop again. like before, with the same error "B1D29 No start, even after restart attempt".
Once again I blowed and this time more, and for longer, between the glow plug ON, through the fuel pump ON and up to fuel pump OFF.
At some parts of the process it appeared that the passage was blocked (like by a valve) and it was hard to blow.
After some attempts a PUFF of smoke came out (from everywhere apparently, like a lot of smoke) it was dark and I could not see the colour or where it came from. Anyway, I did it about 3 times. forcing air made this puff of smoke from the FBH.
After that I started again and gently blow through the air intake... just to increase the amount of air being sucked... IT WORKED... eureka... from there it appears to work every time.
If I sense it is not ON when it should, I turn the heating vent off, and on again, and presto!.
5th Dec 2020 7:07 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Hi all
I’ve just bought the coolant link and the tools needed to remove the FBH and continue to drive while I service it
I see the problem is most likely to be carbon build up, however there could be part replacement needed if the carbon clean and strip doesn’t work...
My question is should I buy any parts for a likely alternative issue or is a basic disassembly and clean very likely please?
Ideally want to avoid reassembling to find it’s not worked!
Tia
4th Jan 2021 11:55 pm
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
Remove and strip it first and see what you find, it will be cheaper to get all the parts together.
5th Jan 2021 6:23 am
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Will do thanks and that sounds like a good idea
I’ll be back 😎
5th Jan 2021 9:32 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
Just be very thorough.
I haven't serviced many Webasto units but work on Eberspacher units daily, the glow plugs and fans are only 8v so don't be tempted to test them on a 12v battery as there easily damaged and it will prove nothing.
5th Jan 2021 9:53 am
W6CJW
Member Since: 06 Nov 2005
Location: Sunny Sussex
Posts: 81
Excellent write up Robbie, followed it to the letter and it all came apart easily. Sadly I discovered the small cap in the burner has become detached. Does anyone know if and where you can buy the complete burner assembly?D4 3.0 HSE cameras,Hybrid TV, 20" alloys, heated wheel, privacy, Tow pack.
Departed RRS TDV8 HSE Full Arden kit in TEAL and colour coded everything.
Departed Disco 3 2.7 HSE
I never drive faster than I can see!
9th Jan 2021 1:41 pm
Wyn
Member Since: 15 Jun 2015
Location: Cardiff
Posts: 56
Advanced factors do the whole burner assembly.
9th Jan 2021 2:38 pm
arb
Member Since: 25 Jan 2019
Location: hampshire
Posts: 29
FBH - ceramic burner part available?
Hi Robbie et al,
I've stripped mine down (thanks and respect due for excellent advice above btw).
Found hairline crack in the ceramic part - in a few places. Assume this is bad news?
Has anyone found a supply for this part (and the shims/gaskets for re-install of the ceramic part)?
The rest of my unit is in very good condition (minimal cleaning needed).
Thanks in advance and apologies if i've missed this info on the board (have searched).
Cheers
arb
10th Jan 2021 10:42 pm
Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
Every webasto dealer.....
Although everthing fitted to the internal burner itself is sold only as te internal burner complete..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.
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
what is that and what is it used for anyway?? 
Blow some compressed air (OR blow yourself into that metallic tube). 
eureka... from there it appears to work every time.
