[Guide] [T6_modified] T6 Webasto Aux/Parking (water) Heater Configuration with VCDS

Just to recap...

Heater unlocking:

VCDS ► Select Control Module ► 18-Aux.Heater ► Basic Settings ► IDE06654-Disengaging/Unlock heater​
VCDS ► Select Control Module ► 18-Aux.Heater ► Fault Codes ► Clear Codes​
OBDeleven ► Control Units ► 18 Parking Heater ► Basic Settings ► Disengaging heater​
OBDeleven ► Control Units ► 18 Parking Heater ► Faults ► Clear faults​


Heater fault codes:
 
PS 2. Does anyone know access code for adaptations? The controller accepts code 20103 but it still doesn't allow me :thumbsdown: to tweak adaptation channels. Not that there is any need to change anything, just don't like the idea not having all the controls :whistle: .
Did you managed to find the access code for you T6 MY19 Adapter 18 that allows to store changes? Have the same issue: 20103 accepted, but changes are not possible.
(Surfing already for good several weeks. Nothing..)
 
Did you managed to find the access code for you T6 MY19 Adapter 18 that allows to store changes? Have the same issue: 20103 accepted, but changes are not possible.
(Surfing already for good several weeks. Nothing..)
The VCDS reports "invalid message length" and thus adaptations are rejected. There seems to be a mismatch in communication protocol. Ross-Tech is aware of the issue and the root cause so would expect to see it fixed eventually. Details --> VW Transporter T6, Address 18 Aux.Heat --- Adaptation FAIL

However OBDeleven handles this just fine (verified with version 0.11.2, the current as today) :thumbsup:.

Yes, I did - kind of - as above. Thanks for reminding, just appended the original post ;)
1605202704971.png
Actually when you hover mouse on access code box nowadays VCDS shows both codes. However, the problem with VCDS still persists.
 
80782 worked well with my Multivan T6 MY19. Thanks a lot for this tip. Was desperate to find it!

With this Security Access Code I was able to change the ambient temperature settings from default 5C/12C to desired 8C/15C.
Also in Basic Settings it is possible to put heater into Customer Service Mode and check the entire run up cycle.
To stop Customer Service Mode - Heater Shut Off basic settings should be activated before applying Heater to Production Basic Settings.
While Heater Customer Service is active, the heater starts and the rear seat blower (next to the right sliding door) is engaged.
After this operation one fault code was recorded in Adapater 18: "No Basic Settings".
Once the Heater to Production is activated, this fault code can be erased and it never pops up again.

Also, while waiting for other parts for Remote Start retrofit with Telestart, I was able to to pair brand new RF transmitter 3G0 963 511 B with the Telestart module 3Q0 963 513 without connecting Telestart to the vehicle. To do this, you just need to supply power 12VDC+ to pin 1 and GND to pin 8 and then within 6 second push OFF button on RF transmitter and the pairing is done.
While the Telestart still powered on the RF Transmitter responds with steady red (with OFF) and steady green (with ON).
Once the module is powered off, RF Transmitter responds with blinking LEDs.
 
Is there any chance some one can send me the coding for the overhead control panel, I have the water heater fitted as standard, but have only just fitted the overhead unit, but I can't seem to figure out how its coded, it thinks its an 'Air heater' controller?
Any help would be appreciated
Hello, can you tell me, please, how you wired the overhead control panel?

Thanks a lot
 
Hello, can you tell me, please, how you wired the overhead control panel?

Thanks a lot
It's the unit J702 in chapter 63 >here<. Just convenience CAN bus and power. Depending on your vehicle (T5.1) the bus can be found e.g. next to the heater, connector T8aj (probably page 89/3 for your van). (Different on T6). EDIT: Clarified T5.1/T6.
Let us know how it goes.

PS.
 
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I'm using my Webasto water heater as a parking heater to warm up the inside of my van. I don't have the coolant changeover valve installed that @mmi refers to in the original post, so the heater is warming both the cabin and the engine block (I get an open circuit error on VCDS if I try and select that the valve is installed).

The parking heater factory setting is to operate at 80 degrees. I can't see why I need it this high, when my primary aim is to warm the cabin to a comfortable temperature. A lot of energy is wasted keeping the engine block at such a high temperature.

Does anyone have any thoughts or experience if it's a good/bad idea to lower the temperature threshold adaptation values for parking heat (see below) so that it operates at say 60 or 70 degrees? I would be doing so in order to make the system run more efficiently.


Heater parameters.PNG
 
Air heaters run at 90 - 100 degrees output anything less and you will need a day to warm up your van:), coolant heaters are no different, you need the output to be considerably higher than the temp that you are trying to achieve. Use an air heater for quick and efficient warm up - the coolant heaters are designed for heating the engine in cold climes and are inefficient when used as general heaters. I don't see why you would want to run a 5Kw heater heating the cab + coolant when a 2Kw air heater is so much more direct/easier/cheaper/more efficient. Just because you can use a coolant heater it doesn't make it the best option.
 
Hi. Help solve the problem. T6 has a ceiling timer and a second battery under the driver's seat. Webasto stopped turning on at temperatures below + 4C and I also cannot turn it on using the ceiling timer. I can turn on Webasto only through w-bus. VCDS sees the heater block, but with the following errors.
Code:
Address 18: Auxiliary / auxiliary heater (J364) Labels: | 7E0-963-27X-18.clb
   Part No SW: 7E0 963 272 B HW: 7E0 963 272 B
   Component: STH-T5GP2 003 0009
   Coding: 4000
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013
   ROD: EV_AuxilParkiHeateWOST5G2.rod
   VCID: 2B5EFBB5422DEF724A3-807E

1 malfunction:
0376 - no basic installation
          B2010 00 [009] - -
          Confirmed - tested after deleting records
             Freeze:
                    Fault Status: 00000001
                    Fault priority: 6
                    Error frequency: 1
                    Forgetting Index: 243
                    Mileage: 40975 km
                    Date: 2017.04.02
                    Time: 15:49:54

                    Operating condition of parking heater: OFF
                    71
                    Coolant temperature of parking heater: 37 ° C
                    Coolant temperature: -15 ° C
                    Engine running status: not recognized
                    Fuel level: 54 l
                    Heater output: 0 W

Address 6E: Overhead display and control panel (J702) Labels :. 7E5-919-037-W2.clb
   Part No SW: 7E5 919 037 G HW: 7E5 919 037 G
   Component: Dachdisplay H15 0200
   Revision: 10100012 Serial number: 468728
   Coding: 000102
   Shop #: WSC 00000 000 00000
   VCID: 356ADDCD9C69A9822C7-8060

1 malfunction:
01207 - Additional heater control unit
            008 - Invalid signal - Intermittent
             Freeze:
                    Fault Status: 00111000
                    Fault priority: 3
                    Error rate: 7
                    Forgetting Index: 28
                    Mileage: 39414 km
                    Countdown time: 0
                    Date: 2020.11.25
                    Time: 07:42:47
 
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Webasto stopped turning on at temperatures below + 4C
Do you mean automatic start when engine is running? The coding 4000 indeed turns off heater's automatic starting. Coding 4001 would enable it.
I also cannot turn it on using the ceiling timer.
The coding shouldn't affect the timer. However, most likely the fault "0376 - no basic setting" is preventing the heater to start. Have you done any coding or adaptations? Cleared the adaptations?

1) Please post full VCDS autoscan as the heater is communicating also with other units.
2) Please post adaptation maps and measurement blocks so we can see exactly how the heater is configured.

How to:
VCDS -> Applications -> Controller Channel Map ->
1612028235170.png
Tick/fill boxes as above and hit Go
VCDS Flashes screens for a moment (when finished hit "Done, Go Back") and in folder C:\Ross-Tech\VCDS\Logs\.... there will be files​
adpmap-18-xxxxxxx....CSV and blockmap-18-xxxxxxx....CSV
Upload the files here by using​
1612028444808.png

Please do the steps above.

Then you could try the following to see if the heater clears the fault:
VCDS - 18-Auxiliary/Parking heater - Basic settings - Heater operation for production​
 
Do you mean automatic start when engine is running? The coding 4000 indeed turns off heater's automatic starting. Coding 4001 would enable it.
The coding shouldn't affect the timer. However, most likely the fault "0376 - no basic setting" is preventing the heater to start. Have you done any coding or adaptations? Cleared the adaptations?
Then you could try the following to see if the heater clears the fault:
VCDS - 18-Auxiliary/Parking heater - Basic settings - Heater operation for production​
From the factory there was a coding: 4400, the valve turned off a long time ago, it became 4000. I cleared the errors, they appear again. I didn't do any coding or adaptations. If you need to make adaptations, which ones? I will do a full auto scan tomorrow. Do I need to do this action? VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production access code 80782
 
From the factory there was a coding: 4400, the valve turned off a long time ago, it became 4000. I cleared the errors, they appear again. I didn't do any coding or adaptations. If you need to make adaptations, which ones? I will do a full auto scan tomorrow. Do I need to do this action? VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production access code 80782
Thanks. Just curious what possibly has caused the fault - so good to know you didn't "touch" anything.
There is no need to do any adaptations - let's just verify yours are still as from factory.
The "VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production" has been used to successfully clear the fault, so worth to try. See --> Aux heater retrofit, coding side
 
The "VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production" has been used to successfully clear the fault, so worth to try. See --> Aux heater retrofit, coding side
VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production
Status: Discontinued due to cretic security.
An error occurred: 0130 - No flame formation U914353 F3 [009] - during the test.
Webasto launched via w-bus. Status: ok
Removed all bugs.
VCDS - 18-Auxiliary / Parking heater - Basic settings - Heater operation for production. Status: completed successfully.
Removed all bugs.
18-Aux. Heat - Status: OK 0000
6E-Ctrl Head Roof - Status: OK 0000
Webasto now starts with a ceiling timer. And as a pre-heater does not turn on at a temperature of -4C.
 

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Webasto launched via w-bus. Status: ok
What's this? How did you do this? A Webasto-tool?
Webasto now starts with a ceiling timer.
That's good!
And as a pre-heater does not turn on at a temperature of -4C.
Do you mean that when engine is started then the heater does not start (always) automatically below +5C?

True, your current coding (4000) inhibits that. To enable heater automatic start/stop by outdoor temperature (below +5C) you need to tick the following (byte 1, bit 0 => 1)
1612107333525.png
 
What's this? How did you do this? A Webasto-tool?
Long ago I bought a homemade module that can launch Webasto via w-bus with a button. Fully equipped with a GSM module, received a remote start.

True, your current coding (4000) inhibits that. To enable heater automatic start/stop by outdoor temperature (below +5C) you need to tick the following (byte 1, bit 0 => 1)
View attachment 101094
Yesterday morning -1C Webasto did not turn on. I drove 5 km and turned off the engine, after 10 minutes I started. Webasto did not turn on. After 15 minutes, the temperature began to rise sharply. Webasto turned on. Today -7C Webasto switched on normally. I left the code as it was from the factory 4000. Thanks for the help.
enable byte 1, bit 0 => 1 what will give me?
 
Long ago I bought a homemade module that can launch Webasto via w-bus with a button. Fully equipped with a GSM module, received a remote start.
Ok. Thanks.

I started. Webasto did not turn on. After 15 minutes, the temperature began to rise sharply. Webasto turned on.
Most likely Webasto turned on because Climatic/Climatronic A/C system requested auxiliary heater to turn on. It's allowed in your adaptations:
1612298663321.png

enable byte 1, bit 0 => 1 what will give me?
-> Coding 4001 -> Webasto always turns on when engine is started below +5C (as defined in your adaptations):
1612298916546.png
 
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