OEM Webasto Auxiliary Heater To Parking Heater Upgrade

Robert

Senior Modder
VCDS User
Moderator
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T6 Legend
All required components are already purchased, tested and ready for the installation.

IMG-20200214-WA0000.jpg

20200227_070013.jpg

Well invested €58=£49 :thumbsup:

My ODIS-E is also ready to upload new(better) firmware ;)

20200226_171125.jpg
 
Last edited:
My aux heater details before flashing.

Code:
Address 18: Aux. Heat (J364)       Labels:| 7E0-963-27X-18.clb

   Part No SW: 7E0 963 273     HW: 7E0 963 273

   Component: STH-T5GP2     002 0007

   Coding: 4101

   Shop #: WSC 02759 790 50316

   ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001010

   ROD: EV_AuxilParkiHeateWOST5G2.rod

   VCID: 6ADB74A98D7FEE1A6B-803E

          

Address 18: Aux. Heat

Control Module Part Number: 7E0 963 273

  Component and/or Version: STH-T5GP2     002 0007

           Software Coding: 4101

            Work Shop Code: WSC 02759

                      VCID: 6ADB74A98D7FEE1A6B-803E


Advanced Identification/FAZIT

     Identification: WOS-000

     Date: 16.09.15

     Manufacturer number: 2450

     Test stand number: 0894

Flash Status

     Programming Attempts(application): 1/0/0

     Flash Date: 00.00.00

Misc.

     Hardware number: 7E0 963 273

     Workshop System Name: J364

     Equipment/PR Code: 000000000000000000000000

     Dataset Number: -----------

     Dataset Version: ----

     ASAM Dataset: EV_AuxilParkiHeateWOST5G2

     ASAM Dataset Revision: 001010

VCDS Info:

       VCID: 6ADB74A98D7FEE1A6B-803E

       Labels: 7E0-963-27X-18.clb

       ROD: EV_AuxilParkiHeateWOST5G2.rod


My aux heater details after flashing(but before connecting Telestart)

Code:
Address 18: Aux. Heat (J364)       Labels:| 7E0-963-27X-18.clb

   Part No SW: 7E0 963 272 B    HW: 7E0 963 273

   Component: STH-T5GP2     002 0009

   Coding: 4101

   Shop #: WSC 02759 790 50316

   ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013

   ROD: EV_AuxilParkiHeateWOST5G2.rod

   VCID: 2B55B1AD4205371250-807E


Address 18: Aux. Heat

Control Module Part Number: 7E0 963 272 B

  Component and/or Version: STH-T5GP2     002 0009

           Software Coding: 4101

            Work Shop Code: WSC 02759

                      VCID: 2B55B1AD4205371250-807E


Advanced Identification/FAZIT

     Identification: WOS-000

     Date: 16.09.15

     Manufacturer number: 2450

     Test stand number: 0894

Flash Status

     Programming Attempts(application): 1/1/1

     Flash Date: 00.00.00

Misc.

     Hardware number: 7E0 963 273

     Workshop System Name: J364

     Equipment/PR Code: 000000000000000000000000

     Dataset Number: -----------

     Dataset Version: ----

     ASAM Dataset: EV_AuxilParkiHeateWOST5G2

     ASAM Dataset Revision: 001013

VCDS Info:

       VCID: 2B55B1AD4205371250-807E

       Labels: 7E0-963-27X-18.clb

       ROD: EV_AuxilParkiHeateWOST5G2.rod
 
Aux heater flashing process with ODIS-Engineering;)

 
Last edited:
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My good wife :inlove: will be (should be:unsure:) quite pleased with my efforts when she'll get into warm vehicle tomorrow morning.
 
My aux heater details before flashing.

Address 18: Aux. Heat (J364) Labels:| 7E0-963-27X-18.clb
Part No SW: 7E0 963 273 HW: 7E0 963 273
Component: STH-T5GP2 002 0007
Coding: 4101
Shop #: WSC 02759 790 50316
ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001010
ROD: EV_AuxilParkiHeateWOST5G2.rod
VCID: 6ADB74A98D7FEE1A6B-803E

Address 18: Aux. Heat
Control Module Part Number: 7E0 963 273
Component and/or Version: STH-T5GP2 002 0007
Software Coding: 4101
Work Shop Code: WSC 02759
VCID: 6ADB74A98D7FEE1A6B-803E

Advanced Identification/FAZIT
Identification: WOS-000
Date: 16.09.15
Manufacturer number: 2450
Test stand number: 0894
Flash Status
Programming Attempts(application): 1/0/0
Flash Date: 00.00.00
Misc.
Hardware number: 7E0 963 273
Workshop System Name: J364
Equipment/PR Code: 000000000000000000000000
Dataset Number: -----------
Dataset Version: ----
ASAM Dataset: EV_AuxilParkiHeateWOST5G2
ASAM Dataset Revision: 001010
VCDS Info:
VCID: 6ADB74A98D7FEE1A6B-803E
Labels: 7E0-963-27X-18.clb
ROD: EV_AuxilParkiHeateWOST5G2.rod

My aux heater details after flashing(but before connecting Telestart)

Address 18: Aux. Heat (J364) Labels:| 7E0-963-27X-18.clb
Part No SW: 7E0 963 272 B HW: 7E0 963 273
Component: STH-T5GP2 002 0009
Coding: 4101
Shop #: WSC 02759 790 50316
ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013
ROD: EV_AuxilParkiHeateWOST5G2.rod
VCID: 2B55B1AD4205371250-807E

Address 18: Aux. Heat
Control Module Part Number: 7E0 963 272 B
Component and/or Version: STH-T5GP2 002 0009
Software Coding: 4101
Work Shop Code: WSC 02759
VCID: 2B55B1AD4205371250-807E

Advanced Identification/FAZIT
Identification: WOS-000
Date: 16.09.15
Manufacturer number: 2450
Test stand number: 0894
Flash Status
Programming Attempts(application): 1/1/1
Flash Date: 00.00.00
Misc.
Hardware number: 7E0 963 273
Workshop System Name: J364
Equipment/PR Code: 000000000000000000000000
Dataset Number: -----------
Dataset Version: ----
ASAM Dataset: EV_AuxilParkiHeateWOST5G2
ASAM Dataset Revision: 001013
VCDS Info:
VCID: 2B55B1AD4205371250-807E
Labels: 7E0-963-27X-18.clb
ROD: EV_AuxilParkiHeateWOST5G2.rod
And also ODIS-Engineering comparison(before and after the flash):)

20200304_185013.jpg
 
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To complete your now almost Nordic setup - an OEM control panel/timer working in parallel with remote.
18-aux_heat_webasto_overhead_control-jpg.20991

Added functionality:
  • timer (3 programmable times - time + week day -> max week ahead), however they are just one shot - can only activate the next event (can't activate repeats e.g. automatically every Mo-Fr at 6:15, need always to "authorize" the next one).
  • set mode: heat or ventilation only
  • set heat/vent time on remote (as in pic 30 mins)
  • child lock
-------------------------------------------------------------------------------
As in MY18, MY19
-------------------------------------------------------------------------------
Address 6E: Ctrl Head Roof (J702) Labels:. 7E5-919-037-W2.clb
Part No SW: 7E5 919 037 J HW: 7E5 919 037 J
Component: Dachdisplay H17 0200
Revision: 1010013S Serial number: 62xxxx
Coding: 000103 (with remote, without 000102)
-------------------------------------------------------------------------------

-------------------------------------------------------------------------------
As in MY16, MY17
-------------------------------------------------------------------------------
Address 6E: Ctrl Head Roof (J702) Labels:. 7E5-919-037-W2.clb
Part No SW: 7E5 919 037 G HW: 7E5 919 037 G
Component: Dachdisplay H15 0185 . . . . . . . . . . . (EDIT: also found H15 0200)
Revision: 10100011 Serial number: 40xxxx
Coding: 000103 (with remote, without 000102)
-------------------------------------------------------------------------------
 
There is one side effect of this "retrofit" - one permanent fault in Aux. Heater (18).
0266 - Databus
U1121 00 [009] - Missing Message
[TIMEOUT mDachdisplay]

Luckily there are no practical consequences.
It appears that connecting Telestart unit without the overhead timer is the cause :whistle:.
Normally as a standard factory option the overhead timer always comes with Telestart.
Next step is to work out coding modification which will clear this fault :thumbsup:.
 
@Robert

Does the auxiliary coolant heater have it's own built in pump, to circulate the coolant or is it a stand alone unit somewhere?
 
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;)
 
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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;)

Is there an additional or uprated pump as opposed to the standard non aux heater pump?
 
There is one side effect of this "retrofit" - one permanent fault in Aux. Heater (18).
0266 - Databus
U1121 00 [009] - Missing Message
[TIMEOUT mDachdisplay]

Luckily there are no practical consequences of that fault.
It appears that connecting Telestart unit without the overhead timer is the cause:whistle:
Normally as a standard factory option the overhead timer always comes with Telestart.
Next step is to work out coding modification which will clear this fault:thumbsup:
Can confirm the cause. Disconnected my overhead timer panel - and as expected the same fault as above.
Did some coding experiments, however I didn't remove the "6E" from CANbus installation list.
Run basically through all the version codings + a few "unknowns" by changing the coding and then clearing the fault.
5800 = my current working coding, v1​
5808 (byte 1, bit 3)​
D800 (byte 0, bit 7)​
5810 v2​
5820 v3​
5830 v4​
5840 v5​
5850 v6​
5880 v1 + (byte 1, bit 7)​
5890 v2​
58A0 v3​
58B0 v4​
58C0 v5​
58D0 v6​
No luck with any of the above...:cry: - your turn now ;)
 
Once the Telestart is triggered remotely it produces 12V DC output on pin number 3 (green wire in my case). This then could be used as a ON confirmation signal. I don't know where to connect it, maybe horn:p:D:rofl:

View attachment 64752



Thanks Robert for this.
I'm fairly new here, try to get this done without a telestart module, but instead using an app-control(VW T6 - APP-control for water-heater)
My question: what signal is going to the white/green cable in the red connector(pin1): is it simple +12V, or is it W-bus/Lin?

Thanks,

Jaap Stomphorst
 
Thanks Robert for this.
I'm fairly new here, try to get this done without a telestart module, but instead using an app-control(VW T6 - APP-control for water-heater)
My question: what signal is going to the white/green cable in the red connector(pin1): is it simple +12V, or is it W-bus/Lin?

Thanks,

Jaap Stomphorst
Hi Jaap,

This is quite good idea although much more expensive.
Assuming that you are referring to this.

VW-T6-stecker-PIN1.jpg

It is the Lin-bus cable which normally allows for communication between Telestart unit and actual heater(parking heater).
See below.
Telestart T91 LIN connection.png
 
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