Webasto Thermotop W-BUS adaptors - firing up the Thermotop V

Getting the Thermotop V running via the W-BUS.
Connectors and wire etc - fnltd.co.uk/shop/webasto-diag...
W-BUS adaptor - www.ebay.co.uk/itm/PP40-ABS-U...
Robinson Labs - robinsonlabs.co.uk/

[@simonparkinson1053]

You keep coming up with great information for us! Tonight I got my (second) Thermo Top C (Rover 75) running a full cycle after freeing up the water pump, it was jammed by coolant sludge. The other unit I have is a Range Rover L322 unit of the same vintage but looks absolutely mint. Bit of digging, doesn't look like the W-bus controller would be compatible with that unit. One of the units is going in my car, the other will eventually be running some radiators at the container workshop. At the moment, a mix and match is likely with the Rover75 ECU fitted to the Range Rover unit for the car. Seems I might be best off getting a TT-V and this controller for use in the workshop, leaving the TT-C for a spare just now.

[@thomasbarlow4223]

Hey brother just installed a diesel heater in the shop for my grandpa as I've seen him shiver 1 too many times.... it had a sweet aluminium case not plastic... made me feel safer...

[@raymondj8768]

hey david i finally hooked up my chinese heater in my van its the 8 in the red case n its all aluminium not plastic case it works great thanks for all the knowledge about them !

Du hast mir mit deinem Video sehr geholfen. Danke

[@alexadam628]

My A2 has an Auxilliary heater which heats the engine up faster when it’s running. There is an option to have it as a parking heater and the difference is a remote control, the water pump and a controller which runs the cabin fans without the engine running. 😁👍

[@RobertP7884]

I do have A2 with factory webasto and climatronic, just in process of converting it to parking heater so car can defrost before trip

[@tobyticehurst]

Great to see this adapter works as iv got a similar item (early version) but not fired it up yet. On another subject you mentioned, Robinson Labs controller, I have one that has been installed for around 6 months to monitor a Top-C retro fitted to a Caddy van with the Hungarian ECU, but found the Robinson Labs Controller to be very buggy (W-bus Connection Lost), saying that when it dose come to life it can be a handy tool for monitoring, also the the W-bus to the WTT software worked well just like Robinson Labs stand-alone W-bus converter. My only suggestion would be to power it via a battery rather than a bench power supply, as I found unplugging a nearly fully charged phone from the cigarette lighter (high switching from the circuit) it came to life, this could have been a fluke though 🤷‍♂️. Thank you for your videos buddy. NOTE: The combination of the Hungarian controller and/or Robinson Labs controller emit a fair bit of EMF through the W-bus and mosfets, literally wipes out most radio signals.

[@DavidMcLuckie]

Ahh. Now that's an interesting thing. I've noticed with the Hungarian ECU when I try to monitor it via WBUS and my Webasto diagnostic software on the laptop it disconnects frequently. Perhaps its the Hungarian ECU that doesn't maintain a constant WBUS stream. I'm actually running off the battery in parallel with the power supply, as 10A isn't enough to run everything during startup.

[@tobyticehurst]

@@DavidMcLuckie I have the same problem but only when I knock the USB cable, it was 422 start ups/11 months installed between plugging the Hungarian ECU into the software so I can’t quite remember if that was an issue I experienced. I do remember getting the polarity the wrong way round and de-soldering/blowing up diodes off the board on one occasion during the learning process 👍 but after replacing the components it fired straight up. I did buy two more though and only one of those arrived to me working, one would just run the combustion fan and not link via W-bus for love nor money.

[@tobyticehurst]

@@kitecattestecke2303 It is indeed transmitting through the power lines, I get a load of noise from the combustion fan mosfet which a ferrite at the ECU feed has helped a little but will require a few more I recon. The W-BUS noise I get seems to be from the Robinson Labs controller, when unplugged the high frequency beeps go away. This interference has been observed on radio frequencies between 7Mhz-30Mhz.

[@cvj32b]

Thanks very much for another informative video! I'm running the little black Hungarian box with a 4KW Thermotop Evo in my car, and one thing I've noticed is that it sets a "W-bus communications error" everytime it runs the heater, and the heater turns itself off after 60 minutes of runtime - I then have to remove the "startsignal" to the black box, and start it again to run for another max. 60 minutes. I have been in touch with the seller, who says the problem's with my heater, buuut I kinda doubt that... - I would be very interested to hear if your heater is able to run for more than 60 minutes, and if it logs a W-bus comm. error (I know it's a tall order, so completely understand if you don't have time to find out ;) BTW, regarding the parking vs. aux. heater: when I configure the jumper to "Aux" the heater turns on/runs, but it doesn't trigger the fan relay or run the circulation pump :) Best regards from Denmark, Chris

[@robertotumblr457]

The best thank you

[@Rob-cz7lg]

Perhaps auxiliary or parking, means whether it has an output for the water pump? Or perhaps auxiliary heats up to warm the engine and then stays turned off. And parking restarts if the temperature drops to far to allow to have heat for the cabin fan.

[@SirVodkat]

Great video David; I've actually just received the exact same heater from ebay. I was going to have a look at some of the W-Bus github projects for getting this up and running, have you looked into these at all? The W-bus adapter you have looks like an easy way to get these heaters running, but wheres the fun in that haha :p?

[@DavidMcLuckie]

I looked at them. But that went way over my head. :)

[@markellis7014]

Hi David great video. I've just got a Thermotop V from a Rang Rover but ive read they need a special fuel pump DP41 that has some sort of feedback with a solenoid valve built into the TTV. Do you know if your aliexpress pump had this? Could u post up a link for us all as genuine are SO expensive and even less common here in Ozland.

[@jamesl5149]

Hi David. I'm going to give this a try too. Are you using a genuine webasto fuel pump? The original ones are horrendously expensive

[@ianmordecai7580]

David do you know about Robinsons labs that do reprogramming and make strong circuit boards that don’t break down like the webastro one and all the agro of getting them to work.

[@markhoulston1568]

Hello David. Have been on Robinson's web site and it does say that drivers need to be downloaded to it prior to use. Have you ever thought of trying to use a Chinese heater controller to fire up a webasto Thermo Top

[@wvcollective]

They’re not selling it on the shop Ava so I don’t know whether there is some bugs in it

[@darrenslater1913]

can you give the source of the fuel pump? also, is the water pump on the bench doing the water pumping or is it built into the webasto v? thanks

[@oneslowpony4683]

Hi @David McLuckie. Great videos. Very informative and entertaining. I bought a dirt cheap Eberspacher Hydronic D5W Z 5KW diesel heater to see if I can get it going and use it as engine preheater for my surplus army truck. I'm not sure of the simularities between the Espars and the Webastos. Would this adaptor also work on my Eberspacher? Any help is greatly appreciated. Cheers.

[@valvenos]

Hi, could you please tell me if you did get the D5W to work? And if you did how did you do it?

[@thomasbarlow4223]

Hey David have you heard of the "afterburner" diesel heater controller.... it seems super awesome with tons of control/functions.

[@DavidMcLuckie]

Yes, sadly they only work on the chinese diesel heaters. I've got at least one video on the Afterburner.

[@TheArt1970]

@@DavidMcLuckie Been on the afterburner web site, they no longer ship to the uk.

[@sheepdipR1]

Unfortunately Ray has stopped supplying the UK because of the costs and hassle.

[@tonyparry6731]

Do you think this would work on the Eberspacher hydronic d3wz thanks

[@austinmaxi]

Where do you get your fuel pumps from? Also what size pumps should you aim for depending on sizing of burners... i found out that the 12-22 pumps don't move enough fuel for the 2kw Webasto as the hertz is lower and the Webasto fuel pump must be bigger :/

[@DavidMcLuckie]

I got mine on AliExpress. They do the 35ml for the V and the 65ml for the Z.

[@stalbertjocelyn]

The version 1.4 needs a program for it to work. Don t know if you noticed it on there website.

[@DavidMcLuckie]

That's the software to install the drivers for using it as a diagnostic adaptor. That also doesn't work. Which is a shame.

[@user-vn1pq7wq4k]

Please explain to us the electrical wiring in detail. Thank you very much

[@yusufucan7711]

hi .removed from the vehicle. Does a webasto turn into an analog model? thanks

[@twocvbloke]

Could be something like a bad solder joint on that board you were sent, they're always a pain in the arse when it comes to something not working, having to check everything to see if there are any bad joints anywhere...

[@DavidMcLuckie]

Yeah, I'm hoping they reply and give me some guidance as to what to check first. It looks like a really nice board.

[@sunegroennebaek5283]

@@DavidMcLuckie Did they ever get back to you? Thanks for your videos 😊

[@ianmordecai7580]

Hello again I’ve got one of them W-bus to start my thromotop z Ex bmw heater. But for some reason my W-bus is not behaving like your one dose my just lights up green and that’s all.

[@DavidMcLuckie]

Assuming all the wiring is correct. Then there is perhaps a fault with the heater, or it's 'locked'. The Webastos if they have enough of a specific error will lock and not start and need the codes cleared with the Webasto diagnostic software.

[@AUDIOandLIGHT]

What do you think, how lang does it Take to heat up a 800liter hottub up to 36°C with a webasto thermotop c

[@DavidMcLuckie]

Depends on water start temperature. But to go from 10ºC to 36ºC would take about 6 hours.

[@gaboradamecz9895]

Magyar can modul ❤❤

[@volvo09]

Would be sweet if that red controller worked. At least the box works, but having more control would be nice.

[@DavidMcLuckie]

I hope we can get it working.

[@volvo09]

@@DavidMcLuckie me too, i'll buy one. Haha

[@markellis7014]

You sure the heater is not Canbus and works with the box controller but RL board is WBus that's why communication error.

[@marcelbmw-fan5909]

Hallo....funktioniert der Converter auch bei Webasto Air Top ???...Mfg

[@graywolf2694]

I want one of these diesel water heaters so I could made a radiator heating system, but they want from 200 to 600usd in the states so forget that

[@jordanhagan1996]

Oh, I can’t see the W bus for sale anywhere.

[@DavidMcLuckie]

www.ebay.co.uk/itm/124147753763

[@AplusDraftsman]

are you using bio ethanol and why not just regular diesel?

[@DavidMcLuckie]

Negative. That's just the bioethanol bottle.

[@mariomaffia7259]

HI. Excuse me but I'm going crazy getting my webasto thermo top v to work, as long as I'm missing a wiring diagram. So without a w bus, the heater doesn't work? Does simple connections not start? I use it to heat hot water for a radiator in my garage. Could you help me with the 8 pin connections? Thank you

[@DavidMcLuckie]

Thermotop V need either an w-bus adaptor or the correct Webasto controls to turn them on. There isn't a trigger wire.

[@mariomaffia7259]

@@DavidMcLuckie thank you

[@metricstormtrooper]

I've got a z top with a blown board, what exactly would I have to buy and connect to get it running, z tops aren't exactly common here in Tasmania and apart from your videos I really can't get any decent information.

[@DavidMcLuckie]

At the moment there are two choices I know of. There is an ebay seller who makes a replacement board from Hungary, and another is from Bulgaria the Orbasto. www.ebay.co.uk/itm/DIESEL-Aftermarket-controller-Webasto-Thermo-Top-C-Z-E-P-TSL-17/153721220865?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 orbbasto.info/index_en.htm

[@metricstormtrooper]

@@DavidMcLuckie I can't thank you enough, I love your quirky videos, I'll get onto the links you sent cheers from Tasmania. (Australia's Scotland)

[@vincentfield9095]

Could anybody help me, I have looked high and low and cannot seam to where I can one of these devices for my Webasto Thermotop V.

[@DavidMcLuckie]

www.ebay.co.uk/itm/333436056160

[@andykay459]

Hi David what fuel pump did you use please?

[@DavidMcLuckie]

The Webastos use a 65mml3 pump. I got mine off AliExpress.

[@andykay459]

@@DavidMcLuckie nice one thank you

[@Langrigg]

Am awee tiny blackberd wiv Calder feet than most, best garages tae hang aboot hen? Wifes no knowing, brown bird likes.

[@ianmordecai7580]

Oh right they sent you an item I was wondering if it was a scam

[@DavidMcLuckie]

They sent one for me to try. But it arrived needing a little solder joint fixed. Once I fixed that it works exactly as it should.

[@ianmordecai7580]

@@DavidMcLuckie hello thanks for the reply I’ve sent my one in to be fixed. But also have one out of bmw worked in the car but not on the bent he. So I’ve got one of them W-bus units hope that will make it work. Still waiting for it to arrive from Hungary