OEM Webasto Auxiliary Heater To Parking Heater Upgrade

Any more details about this - especially which software the Webasto has? Perhaps even a full VCDS Auto-Scan?

 
Telestart won't work on t6.1 without the overhead display.
Thanks, but sorry - obviously I'm just missing something. Could you please pinpoint me to a post with some more information/details?

I have a friend who patched the T6.1 firmware to allow Telestart installation without the roof display
Exactly which firmware?
 
Thanks, but sorry - obviously I'm just missing something. Could you please pinpoint me to a post with some more information/details?


Exactly which firmware?
A lot of reading in that thread.

 
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A lot of reading in that thread.
Thank you.

It seems that people are quite sparingly sharing their information.

T6.1 had four different software for Webasto heater
- 2 of them (...271 A/C) acting as supplementary heater (non-controllable)
- 2 of them (...272 A/C) acting as parking heater equipped with overhead control panel and optionally with remote.

On top of the above also codings seem to differ based on heater's function.

A bit mystery why the overhead panel is necessary to run Webasto from remote - as the overhead panel is a subsystem of 08-AC, and the remote is a subsystem of 18-Aux.heater 🤔
 
Thank you.

It seems that people are quite sparingly sharing their information.

T6.1 had four different software for Webasto heater
- 2 of them (...271 A/C) acting as supplementary heater (non-controllable)
- 2 of them (...272 A/C) acting as parking heater equipped with overhead control panel and optionally with remote.

On top of the above also codings seem to differ based on heater's function.

A bit mystery why the overhead panel is necessary to run Webasto from remote - as the overhead panel is a subsystem of 08-AC, and the remote is a subsystem of 18-Aux.heater 🤔
Indeed! And people are not willing to share. I have the firmware for all 4 versions btw.
But actually by now everything is clear and I hope I can get someone nearby who wants to do thi upgrade so that I can make a video on it.

As mentioned, the professionals I know who do this for living reported that they patched the sw to avoid the overhead panel. I do not have a copy of the patched sw.
 
Is it possible to change the supply power to a leisure battery and keep all the functions of the unit? Feel like it should be possible but am worried it will remain ‘on’ all the time.
 
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Indeed! And people are not willing to share. I have the firmware for all 4 versions btw.
But actually by now everything is clear and I hope I can get someone nearby who wants to do thi upgrade so that I can make a video on it.

As mentioned, the professionals I know who do this for living reported that they patched the sw to avoid the overhead panel. I do not have a copy of the patched sw.
20251028_155059.webp20251012_101628.webp
Hi, would this overhead panel suffice for converting the Aux heater to parking heater?
I do not mind some coding/flashing as long it can be done with OBDeleven.
It is a T6.1 entry level Kombi with optional heating/cooling for the back seats. The aux (motor) Webasto heater is as in the label.

Thanks
 
Hi, would this overhead panel suffice for converting the Aux heater to parking heater?
I do not mind some coding/flashing as long it can be done with OBDeleven.
It is a T6.1 entry level Kombi with optional heating/cooling for the back seats. The aux (motor) Webasto heater is as in the label.

Thanks
No, your panel won't be suitable. Here's a photo of the complete Telestart T6.1 kit I assembled as per how it was done at the factory.
I simplified the wiring loom to make a very easy installation. Only 4 connection points!

Also, if you're really serious about doing stuff yourself, you need VCDS at the very minimum and for the reflashing - ODIS software.

t61kit.jpg
 
No, your panel won't be suitable. Here's a photo of the complete Telestart T6.1 kit I assembled as per how it was done at the factory.
I simplified the wiring loom to make a very easy installation. Only 4 connection points!

Also, if you're really serious about doing stuff yourself, you need VCDS at the very minimum and for the reflashing - ODIS software.
Hello Eugene, thanks for the good info. At this point I want to learn more about how this webasto works. I do not want to say anything until then. Maybe someone can give me a general idea or a blockdiagram of how it works.

So, I can image it like this: Canbus->Interface->Webasto "stove".
Where:
-The interface receives/sends the commands data from/to the Can bus and gives to the "stove" a couple of digital outputs (like Start and Full power) , and maybe reads back a couple of digital inputs from the "stove" like "Water at 85"and "Alarm".
-The Webasto "stove" is an intelligent" self contained unit able start and stop the fire and the pump autonomously and self regulate.
What about that?

My goal would be not to obtain a fully-luxury parking heater for winter camping in Lappland, but just something basic like:
I press the remote control from my apartment on the 6th floor, and , if outiside is cold enough, the heater will start itself and run the Bus (manual) fans (in the position where they are) for 15 minutes, so when I arrive I do not have to sit on a block of ice, and the engine will start much happier.

Actually I do not really see what is the use of my Webasto heater as it is now. If tonight it goes -30 (done that, and just for pure luck I had OMV -40 diesel inside) , my motor probably won't start anyway, the heater would be only an additional load hindering my battery. Yes, the ice will melt faster from my windshield, but once I have strated the engine (and frozen my a#s) it will do quickly anyway. It seems a lot of wasted equipment and money. Last year was particularly mild here, and I had to rent a garage, so, even at -5, I did not even know that it existed. The VW guy that sold me the used Kombi had no idea too. I learnt about it only here :oops:
BTW, anyone has a rough idea of how much current (Amperes) does the Webasto suck in normal operation? Maybe I need a secondary battery for the above (that I want to install anyway).
 
@FWhite, you're overcomplicating. Danhag or the kit above are your real options to warm up the car before you start your journey on a cold morning.
Good luck!
 
@FWhite, you're overcomplicating. Danhag or the kit above are your real options to warm up the car before you start your journey on a cold morning.
Good luck!
Hi Eugene,
no, on the contrary, I want to simplify, in the sense I want, like other people here, understand how your (or Fite-Wetzer) upgrade works. I thought my description was extremely simple and probably missing some point.
I will probably have to post some blockdiagram, since , you know, a picture is better than 1000 words.
See the picture below. I am NOT suggesting to buy that kit. But I think it is useful for reasoning.
1761819051026.webp

Meanwhile, I am not sure what your proposed upgrade "offers".
-Does it command any pump for the warm water? Is there any electric pump in the base T6.1 at all? Since the aux heater runs only with the motor running, it can use the main mechanical pump that runs with the cam belt, but in our case that is obviosly not possible.
-Does it run the Climatronic/Climatic fans? Those fans normally run only with the key in "contact position".
 
Hi Eugene,
no, on the contrary, I want to simplify, in the sense I want, like other people here, understand how your (or Fite-Wetzer) upgrade works. I thought my description was extremely simple and probably missing some point.
I will probably have to post some blockdiagram, since , you know, a picture is better than 1000 words.
See the picture below. I am NOT suggesting to buy that kit. But I think it is useful for reasoning.
View attachment 307586

Meanwhile, I am not sure what your proposed upgrade "offers".
-Does it command any pump for the warm water? Is there any electric pump in the base T6.1 at all? Since the aux heater runs only with the motor running, it can use the main mechanical pump that runs with the cam belt, but in our case that is obviosly not possible.
-Does it run the Climatronic/Climatic fans? Those fans normally run only with the key in "contact position".

Just for clarity - I am not offering anything. This kit is not for sale as I prepared it for a friend.

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

Any non-original kits such as the one in the photo in your last post are not compatible (unfortunately) unless they support LIN, which is vw-proprietary. W-Bus kits are not compatible.

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.
 
Are you sure?
I haven't tested this myself yet but firmware 7E0963272C should allow for LIN-BUS as well as W-BUS.
Hi Robert. I meant for t6.1.
For T6, the C version is something I would like to test. I have some ideas on the budget friendly Telestart options, to stay in the range of 50 eur let's say
 
Hi Robert. I meant for t6.1.
For T6, the C version is something I would like to test. I have some ideas on the budget friendly Telestart options, to stay in the range of 50 eur let's say
Sorry, I was thinking T6 wise only.
 
Hello everyone! I’m new here. I’ve read all the topics related to Webasto heaters and their upgrades to parking heaters. I know this isn’t exactly the right forum for this, but I believe you might be able to help me — thank you in advance for that.

I have a 2014 Seat Alhambra FR Line with a Webasto Thermo Top Vevo auxiliary heater, and I want to convert it into a parking heater. I got a control module and remote — part number 3Q0963513 from a Škoda Superb. I’ll handle the wiring myself, connecting pin 2 to pin 2 on the heater plug.

The only thing left is the firmware upgrade for the heater. I’ve found the files and can do it, but I’m not sure whether it’s necessary for my specific heater since its part number ends with G. I’m attaching pictures from VCDS and of the components as well.

Thank you in advance!


IMG_3474.jpeg

IMG_3566.jpegIMG_2FA2E94D-CC99-4891-99D7-963B8E2CE7CE.jpeg
 
On our heaters you need to update the firmware to change how the heater works. In the standard configuration it’s an auxiliary heater which runs when the engine is on and the ambient temperature is at a predefined point. with the software update it’s a stationary heater and auxiliary heater which means it can also be run when it gets a signal from the remote module. Even when it’s not cold and the engine isn’t on.

If you car is the same which would be logical I would expect you need to flash the heater with the updated software using a tool like ODIS. There will be several software versions and one will include the correct configuration to change how the heater works.

The easiest way to determine the software version is to get a vcds scan from an identical vehicle which has the option active.

That scan will also give you the coding for the heater so that it knows it has a remote switch module connected and can except the signal . The coding can be edited in vcds or Odis.

Hardware software and coding are 3 different things. You have the hardware you need to change the 2 other variables.

Good luck
 
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Are you sure?
I haven't tested this myself yet but firmware 7E0963272C should allow for LIN-BUS as well as W-BUS.
I think the Eugene's solution is still the simplest (and possibly the cheapest) if you have only the "dumb" Webasto installed.
As I understand, for that solution, you do need the "Luxury" control panel because something has to manage the Van fans (and pumps?) , even with the ignition key off, while the "poor" control panel has no way to do that. Of course there could be some other device doing that as well.

For what I understand , if you have the "poor"panel you do not need any additional wiring going up there, but only the short one to connect the Telstart.
But you need to change the panel.
At that point, then, the Danheim solution starts to be competitive, since it is "said" to work with the simple VW "Climatic" option and their own Plu&Play module.
In practice it is a trade between the Danheim HW kit and the VW "luxury" panel (about 1k EU @ VW, for what I understand) and the additional time and costs to have some top Car Electrician to flash your Webasto. The rest of the installation, i.e. the Telstart is probably equivalent. Not sure wich one is simpler or more convenient at the end. Not sure if the Danheim needs to take down the dasboard to access the "climatic" unit, that is also considerable extra work.
 
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:rolleyes:
 
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