Webasto Auxiliary Heater - customizing

[Parrafin23]

That looks like a kkl cable used for older vag vehicles. I guess its pin 7 on that obd that is used to connect to the w-bus.
On that cd, My guess is that it contains wtt software and with the usb dongle you have access to a tab called Dataset in the software.... Perhaps...
would be nice to see the file structure / contents of that cd

 

[Miguelpfdez94]

Hi @canard1971 ,

Thank you so much for your answer, really appreciated.

i have ordered this kit, it is supposed to be sent along with the software but... not sure about the "flash tool" you mention... is it the Webasto diagnostic tool - engineering mode ...?

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Yes, after a few minutes, when there is heat, the regular ventilation gets enabled and heats the cabin.

Wow.. i did not expect that. I want to use the thermo top EVO engine heater to heat the water from my water tank which is underneath the van. I dont have clear yet if use an heater exchanger heating the engine and the water at the same time or just recirculate the water from the tank throught the webasto and loose the engine heater function...
So in my case, i wouldnt need the regular ventilation from the cabin to turn on

I am wondering if i could disable it by unticking the bit 3... what do you think guys_

Yes, it’s possible. But I think I read in the thread that the guys with VW firmware also noticed error messages. Anyway, with the Webasto SW it works fine without changing this setting.

This really seems kind of incredible to me... have you had the chance to check if the heater turn on automatically when the temp outside is below +5 after flashing the unit?

I have just received the cable and the webasto multicontroler from the polish shop. It basically bypass the oem cable taking the power supply and the w-bus pin to the heater being able tu plug in the multicontroler


@canard1971 did you used any .prn file to flash the heater? People says in other forums/threads a .prn file in needed to flash it

Thanks

 

[canard1971]

i have ordered this kit, it is supposed to be sent along with the software but... not sure about the "flash tool" you mention... is it the Webasto diagnostic tool - engineering mode ...?

The cable adapter looks ok. I think the CD contains the Webasto Termo Test diagnostic tool, where you can run diagnosis and run test modes.

This really seems kind of incredible to me... have you had the chance to check if the heater turn on automatically when the temp outside is below +5 after flashing the unit?

The Webasto upgrade SW doesn’t alter the SW version. It’s not like a generic Webasto firmware overwrites the VW firmware. The existing functionality is kept, only the parking heater feature is enabled. SW version attached below. I checked the live data in OBDEleven and noticed that the heater was running as an auxiliary heater when it was cold.

I have just received the cable and the webasto multicontroler from the polish shop. It basically bypass the oem cable taking the power supply and the w-bus pin to the heater being able tu plug in the multicontroler

Not sure what you mean by bypass the OEM cable. Yes, Multicontroller needs power and w-bus, but w-bus is normally not connected to the electrical system of the car, so nothing needs to be bypassed.

@canard1971 did you used any .prn file to flash the heater? People says in other forums/threads a .prn file in needed to flash it

Not sure what kind of files that are provided on the Webasto upgrade CD. Could be prn files, but it’s nothing that is visible to the user. Have no time to check it now, but could do it later.

 

[Miguelpfdez94]

The Webasto upgrade SW doesn’t alter the SW version. It’s not like a generic Webasto firmware overwrites the VW firmware. The existing functionality is kept, only the parking heater feature is enabled. SW version attached below. I checked the live data in OBDEleven and noticed that the heater was running as an auxiliary heater when it was cold.

Very interesting, i can see in the screenshot you have the same SW version after flashing the webasto as before as @wolny said in the page 4 of this thread, below are the SW available for the engine heater and he and a couple of people installed the firm FL_7E0963272B__0009.frf - Parking Heater in order to unlock the "parkin heater" functionality via VCP. The difference between you an them they used a kit from VW and you are using one from webasto.

Link for Webasto FlashFiles MEGA
There are 3 files:
FL_7E0963272B__0009.frf - Parking Heater
FL_7E0963272C__0009.frf - Parking Heater
FL_7E0963273A__0009.frf - Engine Heater
Name of flash file dedicated for specified module you can find here: VAG-Flashfiles Information

Not sure what kind of files that are provided on the Webasto upgrade CD. Could be prn files, but it’s nothing that is visible to the user. Have no time to check it now, but could do it later.

I know it may be a lot to ask but... would you mind to share some screenshots of the proccedure you followed to flash the heater?
this is the piece of the puzzle i am missing... i know i will be able to use the WTT software and run tests and diagnose the heater but i am really lost how to flash it with this tool and if there was something in the process that indicates the use of some SW file o just there is an option inside the WTT like "Reset factory config" or "flash device" etc

thanks in advanced
Cheers
Miguel

 

[canard1971]

Very interesting, i can see in the screenshot you have the same SW version after flashing the webasto as before as @wolny said in the page 4 of this thread, below are the SW available for the engine heater and he and a couple of people installed the firm FL_7E0963272B__0009.frf - Parking Heater in order to unlock the "parkin heater" functionality via VCP. The difference between you an them they used a kit from VW and you are using one from webasto.

Yes, my understanding is that the FL_7E0963272B__0009.frf firmware has the parking heater enabled by VW already. Thus, no Webasto unlock is necessary. If you have access to the VW flashing tools, that option is cheaper since no Webasto upgrade kit is needed. I doubt that the w-bus control units (e.g. Multicontroller) will work though. I read in the thread that a LIN-bus control unit was required. However, I don't really know how LIN-bus differs from w-bus. They seem to be based on the same electrical protocol.

The Webasto flashing procedure is well described in this video. It's in german, but I think you get the picture anyway. The first part of the video shows how to make sure that the USB interface is mapped to COM1 serial port. The second half of the video shows the flashing procedure.

 

[canard1971]

I know i will be able to use the WTT software and run tests and diagnose the heater but i am really lost how to flash it with this tool and if there was something in the process that indicates the use of some SW file o just there is an option inside the WTT like "Reset factory config" or "flash device" etc

I haven't used the WTT myself, and I don't think you can use it to unlock the heater (at least not in a simple straight forward way). You need to buy the Webasto T6 upgrade CD (or use the VW firmware way).

 

[Miguelpfdez94]

Hi canard1971,

Now, i have all the pieces of the puzzle... that is a custom flash tool made by webasto... not the WTT. i think i would be able to flash the heater with the WTT with engineering mode but... i think for that i would need that firmware to use... thing i dont have yet...

Thanks for the explanation
Miguel

 

[Parrafin23]

I think in the wwt you have an option called Dataset, where you can read dataset from file, Read data from device etc..
So i guess you need the webasto firmware, and select read dataset from file then select Into device, need the webasto connected to the pc and connected to the wwt for this to work
I guess there is a "custom" software you can use to flash the webasto unit. Not sure. many options........
Would be nice to see the contents of that cd to figure out what this is.
A cd can be easy broken, make an .iso image of the disc so you have it as backup and store it on Mega or Onedrive or someting

 

[Miguelpfdez94]

I think in the wwt you have an option called Dataset, where you can read dataset from file, Read data from device etc..
So i guess you need the webasto firmware, and select read dataset from file then select Into device, need the webasto connected to the pc and connected to the wwt for this to work
I guess there is a "custom" software you can use to flash the webasto unit. Not sure. many options........
Would be nice to see the contents of that cd to figure out what this is.
A cd can be easy broken, make an .iso image of the disc so you have it as backup and store it on Mega or Onedrive or someting

Hi Parafin

Yes, that dataset option is inside WTT engineering mode which, as far as i know, can be used to flash the heater.
Finally i am not going to WTT flashing option as i havent found the firmware to flash and buying the CD and the dongle is too expensive.

Cheers
Miguel

 

[Parrafin23]

Yes, that upgrade kit is bloody expensive, and you can only use it for that. Getting a vcp is a better option if you are intrested in doing more with the vehicle.

 

[Miguelpfdez94]

Hello guys,

I hope you all are doing great.

I have asked the same in another thread, just wanted to post it here as well as this post has a lot viewers too. (Admins, removed if not allowed)

Just wondering, have tried to switch on the parking heater ( with remote) when the engine is more or less at workin temp?

For example, after a short-medium ride, try to star the thermo top with the remote.
What is the behavior of it?
Does it switch on?
Or just recirculate the coolant until it drops the temp and then the webasto start in order to keep the coolant warm..?

I guess this questions ca be answered too by people who has more parking heater more than 30 minutes running

Thanksin advanced
Miguel

 

[Parrafin23]

Cant help you with that Miguel,

I have been looking at a T6.1 that we have at work, in the MFD you can set the webasto there.. Does anyone else has this function on the display?
I wounder what needs to be done to have that function to show up in the MFD.

 

[Germplus]

The cable adapter looks ok. I think the CD contains the Webasto Termo Test diagnostic tool, where you can run diagnosis and run test modes.

The Webasto upgrade SW doesn’t alter the SW version. It’s not like a generic Webasto firmware overwrites the VW firmware. The existing functionality is kept, only the parking heater feature is enabled. SW version attached below. I checked the live data in OBDEleven and noticed that the heater was running as an auxiliary heater when it was cold.

Not sure what you mean by bypass the OEM cable. Yes, Multicontroller needs power and w-bus, but w-bus is normally not connected to the electrical system of the car, so nothing needs to be bypassed.

Not sure what kind of files that are provided on the Webasto upgrade CD. Could be prn files, but it’s nothing that is visible to the user. Have no time to check it now, but could do it later.

View attachment 141106

View attachment 141107

Hi Parafin

Yes, that dataset option is inside WTT engineering mode which, as far as i know, can be used to flash the heater.
Finally i am not going to WTT flashing option as i havent found the firmware to flash and buying the CD and the dongle is too expensive.

Cheers
Miguel

So today, I connected my WTT2.16.1 and the USB interface to my heater. I was able to back up the dataset as a .prn file and uploaded it back to the heater just to confirm I can upload a .prn file. it worked.
This means the only part of the puzzle holding the party is the parking heater .prn file.

Not sure what files are on the blue dongle. I am thinking it's some kinda upload loading tool. But my understanding is, it's a one time use only ( encrypted ). Correct me if I am wrong.

I have a feeling with the parking heater .prn file, the heater can be converted from auxiliary heating to parking heating with the WTT 2.16.1 engineering mode
If anyone with a parking heating TTEVO is willing to back up their files from their heater and share it will be awesome!
Or anyone with the dataset CD would like to share the content will fabulous!
Will keep searching and keep you updated.
Regards,
Germplus

 

[Germplus]

So today, I connected my WTT2.16.1 and the USB interface to my heater. I was able to back up the dataset as a .prn file and uploaded it back to the heater just to confirm I can upload a .prn file. it worked.
This means the only part of the puzzle holding the party is the parking heater .prn file.

Not sure what files are on the blue dongle. I am thinking it's some kinda upload loading tool. But my understanding is, it's a one time use only ( encrypted ). Correct me if I am wrong.

I have a feeling with the parking heater .prn file, the heater can be converted from auxiliary heating to parking heating with the WTT 2.16.1 engineering mode
If anyone with a parking heating TTEVO is willing to back up their files from their heater and share it will be awesome!
Or anyone with the dataset CD would like to share the content will fabulous!
Will keep searching and keep you updated.
Regards,
Germplus

Update..

It could also be possible that the .PRN is just a setting ( Algorithm ) and the firmware ( possibly on the blue dongle ? ) should be updated first

 

[oldiebut goodie]

A .prn file is purely data not software.Like this:

;*************************************************************************
; Wed Jan 13 18:38:27 2016
;*************************************************************************
0000 4A 74
0001 4A 74
0002 54 84
0003 54 84
0004 4F 79
0005 54 84
0006 4A 74
0007 54 84
0008 4F 79
0009 01 1
000A 01 1
000B 4C 76
000C 5C 92
000D 47 71
000E 72 114
000F 14 20
0010 4F 79
0011 54 84
0012 88 136
0013 4F 79
0014 87 135
0015 5E 94
0016 4F 79
0017 88 136
0018 8A 138
0019 4A 74
001A 7C 124
001B 14 20
001C 14 20
001D 14 20
001E 14 20
001F 54 84
0020 14 20
0021 92 146
0022 8F 143
0023 92 146
0024 9E 158
0025 92 146
0026 BC 188
0027 CC 204
0028 C9 201
0029 C9 201
002A 8A 138
002B 1E 30
002C 4A 74
002D 14 20
002E BC 188
002F 32 50
0030 32 50
0031 5E 94
0032 5E 94
0033 5E 94
0034 88 136
0035 54 84
0036 5E 94
0037 54 84
0038 5E 94
0039 5E 94
003A FF 255
003B FF 255
003C FF 255
003D FF 255
003E FF 255
003F FF 255
0040 FF 255
0041 11 17
0042 FF 255
0043 0A 10
0044 FF 255
0045 FF 255
0046 0A 10
0047 FE 254
0048 FF 255
0049 0A 10
004A 0A 10
004B FE 254
004C FF 255
004D 0A 10
004E 0A 10
004F 14 20
0050 FF 255
0051 0A 10
0052 FF 255
0053 FF 255
0054 FF 255
0055 FF 255
0056 FF 255
0057 0A 10
0058 0A 10
0059 14 20
005A FF 255
005B FF 255
005C FF 255
005D 14 20
005E 14 20
005F 14 20
0060 06 6
0061 0C 12
0062 0C 12
0063 0C 12
0064 03 3
0065 06 6
0066 0A 10
0067 0C 12
0068 0C 12
0069 0E 14
006A 0A 10
006B 0A 10
006C 0C 12
006D 0C 12
006E 05 5
006F 0C 12
0070 05 5
0071 0C 12
0072 0A 10
0073 0A 10
0074 0C 12
0075 0C 12


SNIP..........


0346 FF 255
0347 FF 255
0348 FF 255
0349 FF 255
034A FF 255
034B FF 255
034C FF 255
034D FF 255
034E FF 255
034F FF 255
0350 FF 255
0351 FF 255
0352 FF 255
0353 FF 255
0354 FF 255
0355 FF 255
0356 FF 255
0357 FF 255
0358 FF 255
0359 FF 255
035A FF 255
035B FF 255
035C FF 255
035D FF 255
035E FF 255
035F FF 255
0360 FF 255
0361 FF 255
0362 FF 255
0363 FF 255
0364 FF 255
0365 FF 255
0366 FF 255
0367 FF 255
0368 FF 255
0369 FF 255
036A FF 255
036B FF 255
036C FF 255
036D 00 0
036E 00 0
036F 00 0
0370 00 0
0371 FF 255
0372 FF 255
0373 FF 255
0374 FF 255
0375 FF 255
0376 FF 255
0377 FF 255
0378 FF 255
0379 FF 255
037A FF 255
037B FF 255
037C FF 255
037D 00 0
037E FF 255
037F FF 255
0380 FF 255
0381 FF 255
0382 FF 255
0383 FF 255
0384 FF 255
0385 FF 255
0386 FF 255
0387 FF 255
0388 FF 255
0389 FF 255
038A 00 0
038B FF 255
038C FF 255
038D FF 255
038E FF 255
038F FF 255
0390 FF 255
0391 FF 255
0392 FF 255
0393 FF 255
0394 FF 255
0395 FF 255
0396 FF 255
0397 00 0
0398 FF 255
0399 FF 255
039A FF 255
039B FF 255
039C FF 255
039D FF 255
039E FF 255
039F FF 255
03A0 FF 255
03A1 FF 255
03A2 FF 255
03A3 FF 255
03A4 00 0
03A5 FF 255
03A6 FF 255
03A7 FF 255
03A8 FF 255
03A9 FF 255
03AA FF 255
03AB FF 255
03AC FF 255
03AD FF 255
03AE FF 255
03AF FF 255
03B0 FF 255
03B1 00 0
03B2 FF 255
03B3 FF 255
03B4 FF 255
03B5 FF 255
03B6 FF 255
03B7 FF 255
03B8 FF 255
03B9 FF 255
03BA FF 255
03BB FF 255
03BC FF 255
03BD FF 255
03BE 00 0
03BF FF 255
03C0 FF 255
03C1 FF 255
03C2 FF 255
03C3 FF 255
03C4 FF 255
03C5 FF 255
03C6 FF 255
03C7 FF 255
03C8 FF 255
03C9 FF 255
03CA FF 255
03CB 00 0
03CC FF 255
03CD FF 255
03CE FF 255
03CF FF 255
03D0 FF 255
03D1 FF 255
03D2 FF 255
03D3 FF 255
03D4 FF 255
03D5 FF 255
03D6 FF 255
03D7 FF 255
03D8 00 0
03D9 FF 255
03DA FF 255
03DB FF 255
03DC FF 255
03DD FF 255
03DE FF 255
03DF FF 255
03E0 FF 255
03E1 FF 255
03E2 FF 255
03E3 FF 255
03E4 FF 255
03E5 00 0
03E6 FF 255
03E7 FF 255
03E8 FF 255
03E9 FF 255
03EA FF 255
03EB FF 255
03EC FF 255
03ED FF 255
03EE FF 255
03EF FF 255
03F0 FF 255
03F1 FF 255
03F2 FF 255
03F3 FF 255
03F4 FF 255
03F5 FF 255
03F6 FF 255
03F7 FF 255
03F8 FF 255
03F9 FF 255
03FA FF 255
03FB FF 255
03FC FF 255
03FD FF 255
03FE 53 83
03FF 47 71
;*************************************************************************

 

[oldiebut goodie]

This is a Webasto software update file SG1574_12V_SW5.68_EOL9012859D03_9012861F03.wuc
Looks like this:

 

[canard1971]

Update..

It could also be possible that the .PRN is just a setting ( Algorithm ) and the firmware ( possibly on the blue dongle ? ) should be updated first

From what I can see on the CD, it contains USB drivers and the executables. No PRN files. So it looks like updates are embedded in the executable.
The dongle is just a key/license. Without the dongle, the Webasto SW won't run.

 

[Miguelpfdez94]

From what I can see on the CD, it contains USB drivers and the executables. No PRN files. So it looks like updates are embedded in the executable.
The dongle is just a key/license. Without the dongle, the Webasto SW won't run.

i think it was me apart from another couple of member who introduced the idea of flashing the heater with WTT software without even knowing for sure. all i have seen till now is this "custom made software tool", engineered by webasto i guess to unlock the heater.

I have no idea what it does behind the scenes, if it installs a VW firm, a webasto one with the capabilities of VW one... like a black box to me.

that is why i went for the VCP/VW firm option (not done yet, waiting to receive the telestart unit) instead of the webasto one ( and it is cheaper )

 

[Parrafin23]

Allrite lads, Im goin to fit the Telestart module my self., under the seat, sincee the w-bus wire is there and power and grounds is there too.
Now.... How about the hvac? i do thave the manual control.. no auto functions on this skimmed version of T6 i got. Where is the wires for the hvac i need to get to and what to connect where. i guess i need some sort of relays and fuses.

 

[Miguelpfdez94]

Allrite lads, Im goin to fit the Telestart module my self., under the seat, sincee the w-bus wire is there and power and grounds is there too.
Now.... How about the hvac? i do thave the manual control.. no auto functions on this skimmed version of T6 i got. Where is the wires for the hvac i need to get to and what to connect where. i guess i need some sort of relays and fuses.

Hello mate,

I havent done it myself as i have climatronic. I expect to do it in a T5 in next couple of months. I guess the procedures should be mostly the same as in these manual.

Keep in mind ping 3 of the receiver has +12v... dont know if it is useful