OEM Webasto Auxiliary Heater To Parking Heater Upgrade

[TALLANDREW]

I would be concerned with a universal until that I wouldn’t find any support for it later on or it wouldn’t be recognised by the car.

Also if you are lucky the yellow wire on pin 2 is in place and there’s no need to role around in the dirt getting at the heater. The software solution then seems easier.

I would totally acknowledge that all of these assumptions might be wrong in compared to reality of using a universal cpu.

 

[FWhite]

I am still puzzled as to why eveyone flashes the ecu rather than fit a standard universal ecu and take VW out of the equation, which seems to be most peoples aim together with being able to use a remote. Far easier and cheaper!
I offered some new universal Evo ecus up on the forum gratis yet not a single person was interested so i didnt bother again. I just ebayed them or fitted them to a couple of heaters. At least i think that i did

Hello Oldie,
please do not get mad of us.. The problem is that the working of that stuff is not fully understood for what I see, sure I don't . Taking VW out of the equation is probably a good thing, (see above about Danheim) but non sure how. Let's say one wants to proceed in your way...
I have some questions just on top of my mind:
1) How do you get an universal ECU, in general? Besides from you , of course...
2)I guess then you need a Telstart, not a problem. But then how you control the fans? I suspect I have at least 2, one for the dashboard and one for the 2nd and 3rd row (that usually I control with the additional overhead panel).
3)What about circulation pump(s)? Nobody talks about that, but I guess it is pointless to warm up the water if it does not circulate. Are there electric pumps at all? Since the motor and even ignition are supposed to be off, how does the water circulate while the Webasto is heating it up?

 

[oldiebut goodie]

I have posted the Webasto circuit diagram for the integration with the vehicle fans etc in the big thread previously. Lying on my hospital bed i cannot access things as easy as if i were at home. The standard Webasto configuration caters for all that - after all that is what they were designed for. Circulation pump comes with the heater from new.
Ecus are available from your friendly Webasto dealer as are Telestarts/timers/Thermocall/whatever you want on W-Bus.

 

[FWhite]

The photo of the kit I showed above is the factory way to allow the water heater to be turned on remotely

Factory original upgrade turns on the fan, water pump etc. Fully automatic solution. And also the custom timers thru roof control panel.


I am going to post wiring diagrams, part numbers etc but first I need a car to do this on.

Hello Eugene,
in perspective, would your solution work with a manual / Climatic AC system or does it need an automatic / Climatronic?
Also why do you say I need VCDS? So far I could code everything supposed for VCDS using OBDeleven pro. Is there any known limitatation or is it only that you do not feel confident with the latter tool? I am not discussing qualty of the tools, just suitability to the specific problem.

 

[TALLANDREW]

I have posted the Webasto circuit diagram for the integration with the vehicle fans etc in the big thread previously. Lying on my hospital bed i cannot access things as easy as if i were at home. The standard Webasto configuration caters for all that - after all that is what they were designed for. Circulation pump comes with the heater from new.
Ecus are available from your friendly Webasto dealer as are Telestarts/timers/Thermocall/whatever you want on W-Bus.

firstly, get well soon.

how would you go about programming/setting up a universal CPU?

 

[eugene]

Hello Eugene,
in perspective, would your solution work with a manual / Climatic AC system or does it need an automatic / Climatronic?
Also why do you say I need VCDS? So far I could code everything supposed for VCDS using OBDeleven pro. Is there any known limitatation or is it only that you do not feel confident with the latter tool? I am not discussing qualty of the tools, just suitability to the specific problem.

Hi. The climatic requires additional wiring. Nothing is impossible. Requires looking into the wiring and tapping into some existing lines for the heater fan. Interestingly, the Carsystems and Kufatec sites don't have the factory retrofit kits yet available for T6.1...

 

[oldiebut goodie]

firstly, get well soon.

how would you go about programming/setting up a universal CPU?

Just use it. There is nothing to programme other than set a timer or temperature with the remote. What are you expecting to need to do?

 

[FWhite]

Hi Oldie,
Same here, I hope you are getting well very soon.

I also saw that I actually have a "friendly Webasto dealer " in the city where I live, so the suppot part for your soution should be well covered. Can't be worse than VW!

What I do not understand is about the pumps & fans. For what I get in this Forum the Webasto Aux Heater (see my label above) does NOT come with a circulation pump of its own. So is the Universal ECU taking care of that , i.e. talking with the Van AC over the CAN?

 

[oldiebut goodie]

Hi Oldie,
Same here, I hope you are getting well very soon.

I also saw that I actually have a "friendly Webasto dealer " in the city where I live, so the suppot part for your soution should be well covered. Can't be worse than VW!

What I do not understand is about the pumps & fans. For what I get in this Forum the Webasto Aux Heater (see my label above) does NOT come with a circulation pump of its own. So is the Universal ECU taking care of that , i.e. talking with the Van AC over the CAN?

Quick online example of a marine kit - circulation pump is included. If you purchase 2nd hand it is invariably still attached to the heater. I haven't seen anyone saying that the pump doesn't come with the heater.( I have a dozen or so spare new ones waiting for me to get back on .my feet and start selling again )

Fans are not talked to by the van - you are fitting a standalone heater not replicating the VW ( or any makers ) setup. Fans are wired to and operated by the heater. Look at the wiring diagram and it will be plain to see.

 

[oldiebut goodie]

Don't.know how well this will read as
I had to copy this and I am just learning to use a mobile phone whilst in hospital!

 

[oldiebut goodie]

View attachment 309147



Don't.know how well this will read as
I had to copy this and I am just learning to use a mobile phone whilst in hospital!

Best I can do until I get home to my computer and all my files.

 

[rippelep]

I am still puzzled as to why eveyone flashes the ecu rather than fit a standard universal ecu and take VW out of the equation, which seems to be most peoples aim together with being able to use a remote. Far easier and cheaper!
I offered some new universal Evo ecus up on the forum gratis yet not a single person was interested so i didnt bother again. I just ebayed them or fitted them to a couple of heaters. At least i think that i did

just a question, if I "take VW out of the equation", does the auxiliary heater function still work (which is part of the VW functionality)? My car had no heater, and when I looked for a even car specific set I was told auxiliary heating is not supported by the "Webasto" solution.

 

[FWhite]

Hi. The climatic requires additional wiring. Nothing is impossible. Requires looking into the wiring and tapping into some existing lines for the heater fan. Interestingly, the Carsystems and Kufatec sites don't have the factory

Hello Eugene.
Thanks for the explanation.
Yeah then it gets complicated and the more I try to understand the less sense it makes to me.
As I said I have already an overhead control unit, but not the right one, as you said. The wiring should be there and be the same, though.
Also Danhag , that has a similar solution (does not replace the overhead unit but adds two CAN controllers) is agnostic regarding climatic / climatronic, and yes, it attaches there behind the AC unit.
They Y-split the CAN bus exactly there.

I saw the minimal rewiring and the no need to take down (part of) the dashboard as the real shining advantage of your solution. Once they are gone...

 

[FWhite]

Auxiliary heater doesn't have a pump built in and it uses existing OEM pump on the coolant circuit.
The whole preheating process is triggered by Telestart and then controlled by Aux. Heater (18)
which communicates via CAN with any other associated components.
I hope this answers your question somehow

Hi Oldie, thanks a lot.
Of course there is no hurry you go home for looking into your PC. That can wait.

I was just trying to understand how it works (in perspective) and please see above, this comes from the prominent Forum member who opened this thread.

 

[oldiebut goodie]

The water pump isn't physically built into the heater but is part of the heater package. Same as the fuel pump isn't built into the heater but is part of the heater package.

 

[oldiebut goodie]

just a question, if I "take VW out of the equation", does the auxiliary heater function still work (which is part of the VW functionality)? My car had no heater, and when I looked for a even car specific set I was told auxiliary heating is not supported by the "Webasto" solution.

What function is it that you wish to have still working?

 

[rippelep]

as I wrote, the auxiliary functionality.... when I start a tour under cold conditions (cooling water < 40, ambient temp < 5.....) the heater automatically helps warm up quickly, that is the standard functionality as an auxiliary, not parking heater.....if I drive just with little load, it will otherwise take some time to warm the engine and passenger compartment. That was for me a reason to try a oem solution.

 

[oldiebut goodie]

In that case you can start the heater whilst you are still lying in bed before you go out to the van. Simple solution.

 

[Hsgio76]

Wszystkie niezbędne komponenty są już zakupione, przetestowane i gotowe do instalacji.
5Q0963513A - odbiornik
7N0963511 - pilot

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Dobrze zainwestowane 58 € = 49 £

Mój ODIS-E jest również gotowy do wgrania nowego (lepszego) oprogramowania układowego

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Pilot zdalnego uruchamiania z tymi numerami 7N0 nie ma prawa działać z tą centralką 5Q0 . Chyba, że ktoś inną elektronikę wsadził a numery zostały na obudowie .

 

[Bav]

Pilot zdalnego uruchamiania z tymi numerami 7N0 nie ma prawa działać z tą centralką 5Q0 . Chyba, że ktoś inną elektronikę wsadził a numery zostały na obudowie .

Please post in English.