Webasto Auxiliary Heater - customizing

[Jimmy T6]

On my 2017 T6, I have a Webasto auxiliary/water heater and Eberspacher air/parking heater fitted at factory. The remote and timer only controls the Eberspacher air/parking heater. The Webasto aux/water heater only kicks in whilst the engine is running and the outside temp is 5 degrees or below.

I am interested to know if the temperature threshold of the Webasto can be increased to say 10 degrees?

Also what other changes can be made to the Webasto using VCDS/VAGCOM? Can it also be made to operate via the remote? I'd really like to make the Webasto operate as a parking heater so I get warm air out my vents at engine startup. I rang Webasto and they told me their generic Thermocall / Telestart upgrade kits do not work as VW install their own software onto the factory-fit Webasto Thermotop heater.

cheers
Jim

 

[Loz]

They say it doesn’t but looking at the wiring there is a remote module shown and it simply applies a 12v supply to a pin on the vw module.
Our Touareg had a remote start for the coolant heater, I think the difference is that the secondary coolant pump has to be started but the vw module might take care of that.

Edit: I just looked at this a 3rd time as yes it supplies a 12v feed to a wire on the heater control unit.

 

[Loz]

If you park on your own drive, you could install one of those simple inline water heaters that you plug in?? That way your heater water and engine would already be warm enough to defrost??

 

[mmi]

The adaptation channels available using VCDS at the bottom. Unfortunately the text doesn't align too well but should be readable.

In addition to the adaptation channels, some features (mostly configuration) are controlled by so called "coding" in VCDS - see below in red.

Mine has been configured to heat up the engine first and then the cabin and it uses van's regular heaters blower to warm up the cabin. I know it can be configured different ways like - cabin only, engine only, cabin first then engine, etc.
Edit: For me it warms up engine and cabin before starting the engine, activated using remote or programmed times on control panel.

I think I have seen vans with remote only (but no control panel) so I'm assuming it should be possible to add VW-remote receiver module or even control panel - but haven't really verified that.

VCDS scans of Webasto and remote receiver (subsystem of 18):

Address 18: Aux. Heat (J364) Labels:| 7E0-963-27X-18.clb
Part No SW: 7E0 963 272 B HW: 7E0 963 272 A
Component: STH-T5GP2 002 0009
Coding: 5801
Shop #: WSC 45626 002 1048576
ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013
ROD: EV_AuxilParkiHeateWOST5G2_VN75.rod
VCID: 2B000D1DD38C4EBFDE8-807E

Remote Control Auxiliary Heater:
Subsystem 1 - Part No SW: 5Q0 963 513 A HW: 5Q0 963 513 A
Component: R149 T91-LIN 003 0301
Serial number: 0000000000000xxxxxxxx


Adaptation channels:
Address - Explanation - Value
IDE00470-Initial fuel filling Yes
IDE06640-MAS01167-Transfer fuel pump-Actuation time 20 s
IDE06640-MAS05078-Transfer fuel pump-Minimum tank level 0 l
IDE06640-MAS05079-Transfer fuel pump-Fuel reserve amount 200 ml
IDE06640-MAS05080-Transfer fuel pump-Maximum standing time 0.0 H
IDE06640-MAS05689-Transfer fuel pump-Activation delay 10 s
IDE06642-MAS05071-Coolant change-over valve-Temperature difference: engine/parking heater 5 °C
IDE06642-MAS05072-Coolant change-over valve-Maximum engine rpm 00110010 /min
IDE06642-MAS05073-Coolant change-over valve-Residual heat: threshold 55 °C
IDE06642-MAS05074-Coolant change-over valve-Note engine rpm No
IDE06686-Insufficient voltage threshold 11.3 V
IDE06687-CO2 adjustment 191
IDE06688-Auxil. heater activation active
IDE06689-Low voltage detection: time limit 20.0 s
IDE06690-MAS05059-Auxil. heat control parameters-Lower temperature threshold: ambient temperature 5.0 °C
IDE06690-MAS05060-Auxil. heat control parameters-Upper temperature threshold: ambient temperature 12.0 °C
IDE06690-MAS05062-Auxil. heat control parameters-Lower temperature threshold: coolant temperature via CAN 72 °C
IDE06690-MAS05063-Auxil. heat control parameters-Upper temperature threshold: coolant temperature via CAN 88 °C
IDE06690-MAS05064-Auxil. heat control parameters-Lower temperature threshold for partial load after full load 75 °C
IDE06690-MAS05065-Auxil. heat control parameters-Lower temperature threshold for starting from control pause 76 °C
IDE06690-MAS05066-Auxil. heat control parameters-Upper temperature threshold for full load after partial load 80 °C
IDE06690-MAS05067-Auxil. heat control parameters-Upper temperature threshold for control pause 86 °C
IDE06690-MAS05068-Auxil. heat control parameters-Temperature threshold for control mode 78 °C
IDE06691-MAS05064-Parking heat control parameters-Lower temperature threshold for partial load after full load 60 °C
IDE06691-MAS05065-Parking heat control parameters-Lower temperature threshold for starting from control pause 64 °C
IDE06691-MAS05066-Parking heat control parameters-Upper temperature threshold for full load after partial load 80 °C
IDE06691-MAS05067-Parking heat control parameters-Upper temperature threshold for control pause 86 °C
IDE06691-MAS05068-Parking heat control parameters-Temperature threshold for control mode 80 °C
IDE06691-MAS05069-Parking heat control parameters-Temperature threshold for activation of fresh air blower 45 °C
IDE06691-MAS05070-Parking heat control parameters-Control behavior Continuous
IDE06692-Note request for aux. heater from A/C system Do not ignore
IDE06693-Evaluate air pressure via CAN Yes
IDE06694-MAS05076-Minimum burn time-Time 160 s
IDE06694-MAS05077-Minimum burn time-Temperature threshold offset 1 °C
IDE07160-MAS04357-Control module switch-off: switch-off time-Time 1 140 min
IDE07160-MAS04358-Control module switch-off: switch-off time-Time 2 20 min
IDE11873-MAS13407-Erweiterte Pumpenansteuerung-Aussentemperatur unterer Grenzwert 15.0 °C
IDE11873-MAS13408-Erweiterte Pumpenansteuerung-Aussentemperatur oberer Grenzwert 17.0 °C
IDE11873-MAS13409-Erweiterte Pumpenansteuerung-Motortemperatur unterer Grenzwert 35 °C
IDE11873-MAS13410-Erweiterte Pumpenansteuerung-Motortemperatur oberer Grenzwert 30 °C
MAS01488-recirc. pump 11111111 /min
MAS05075-Evaluate ethanol content No
MAS09096-Recirc. pump locking mechan. 1
ENG119729-activacion_of_simulated_flamme_run_for_emv_measuring No
ENG119721-development_data_on_CAN not active

 

[carlg]

Have a look at this kit ,I had one on my last van ,but with a timer not a remote and it turns auxiliary heater into a parking heater ,if you look at there website you can have different ways of turning it on ,remote ,timer etc
Look at this on eBay
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.de/ulk/itm/301952381198

 

[Loz]

VCDS scans of Webasto and remote receiver (subsystem of 18):

Address 18: Aux. Heat (J364) Labels:| 7E0-963-27X-18.clb
Part No SW: 7E0 963 272 B HW: 7E0 963 272 A
Component: STH-T5GP2 002 0009
Coding: 5801
Shop #: WSC 45626 002 1048576
ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013
ROD: EV_AuxilParkiHeateWOST5G2_VN75.rod
VCID: 2B000D1DD38C4EBFDE8-807E

Remote Control Auxiliary Heater:
Subsystem 1 - Part No SW: 5Q0 963 513 A HW: 5Q0 963 513 A
Component: R149 T91-LIN 003 0301
Serial number: 0000000000000xxxxxxxx

So your remote control module is a Webasto Telesart.
Did you add this or factory fitted?

 

[mmi]

So your remote control module is a Webasto Telesart.
Did you add this or factory fitted?

Correct. Factory installed.

 

[Loz]

Okay I found it, yes it supplies 12v as I originally thought to a single pin on the heater control unit. So you can just add the webasto tele start kit for about £150 or make something homemade.

NEW OEM Webasto Telestart T91R LIN 5Q0963513A / 5Q0 963 513 A kit with VW Remote | eBay
Only downside is the seller is in Lithuania

 

[carlg]

Okay I found it, yes it supplies 12v as I originally thought to a single pin on the heater control unit. So you can just add the webasto tele start kit for about £150 or make something homemade.

NEW OEM Webasto Telestart T91R LIN 5Q0963513A / 5Q0 963 513 A kit with VW Remote | eBay
Only downside is the seller is in Lithuania

So can this kit only be used if you have the control panel in the panel near interior lights ?

 

[Loz]

From the wiring it is independent.

 

[carlg]

It looks like the kit I put the link to is the complete kit to wire to the webasto and to the vans fan control .
The other kit @Loz put the link for is if you already have factory controller and you can add the tele start .
Shame I liked the price of the other kit .

 

[Loz]

Did you read the fitting instructions? What a lot of faffing about..

 

[Chris You'll]

I think I'm trying to achieve the same thing as @Jimmy T6 and I have the same setup. This being automatic non remote coolant heater by Webasto and air heater by Eberspatcher with remote. I also have the control unit near the interior light which only controls the air heater.

To actuate the coolant heater I intend on installing the Telestart kit as noted by @Loz above or connecting the coolant heater to my GSM tracker which has a switchable auxiliary contact.

The VW manual says that the MODE button allows control of the coolant heater modes but the control panel in my MY18 Kombi only allows control of the air heater.

Any thoughts or comments would be appreciated.

 

[carlg]

I think I'm trying to achieve the same thing as @Jimmy T6 and I have the same setup. This being automatic non remote coolant heater by Webasto and air heater by Eberspatcher with remote. I also have the control unit near the interior light which only controls the air heater.

To actuate the coolant heater I intend on installing the Telestart kit as noted by @Loz above or connecting the coolant heater to my GSM tracker which has a switchable auxiliary contact.

The VW manual says that the MODE button allows control of the coolant heater modes but the control panel in my MY18 Kombi only allows control of the air heater.

Any thoughts or comments would be appreciated.
View attachment 16639 View attachment 16640

Hi @Chris You'll do you have climate or climatronic a/c , if climatronic its slightly easier to wire ,with all the wires under the passenger seat .

 

[Jimmy T6]

Hi @Chris You'll , i'm personally not willing to spend that kind of money on a Telestart kit without some firm evidence it will work. I made inquiries to Webasto on two separate occasions, both times speaking with different people on the technical support line. They assured me the auxiliary water heater fitted on our vans is an OEM version, and that their Telestart kit is most unlikely to work, basically even though it says Webasto on the part it may as well say Volkswagen. I've decided we're stuck with it as VW intended, unless anyone on this forum can provide some pretty solid advice on the procedure they followed. In hind site, the mistake was to order both heaters.

So, I use my simple workaround which works quite a treat...... basically in subzero conditions and all iced up, I start the engine 5 minutes before I drive off, stick the front defrost on, then lock with the spare key. The Webasto auxiliary heater does its thing, and rapidly heats the water coolant. Not ideal but at least it is free. The next best thing would be if someone could invent a solution that did the same as this off a remote.

In hind-site, I recommend to all people considering ordering the extra heater options... just order the auxiliary water coolant heater from the factory - you can then use it off the remote and timer and enjoy warm air from your vents as soon as you jump in and have your windscreen defrosted for you by the warm air. If you need an additional air heater (e.g. for overnight), then fit this as aftermarket, with all the whistles and bells options you require.

 

[carlg]

Hi @Chris You'll , u i'm personally not willing to spend that kind of money on a Telestart kit without some firm evidence it will work. I made inquiries to Webasto on two separate occasions, both times speaking with different people on the technical support line. They assured me the auxiliary water heater fitted on our vans is an OEM version, and that their Telestart kit is most unlikely to work, basically even though it says Webasto on the part it may as well say Volkswagen. I've decided we're stuck with it as VW intended, unless anyone on this forum can provide some pretty solid advice on the procedure they followed. In hind site, the mistake was to order both heaters.

So, I use my simple workaround which works quite a treat...... basically in subzero conditions and all iced up, I start the engine 5 minutes before I drive off, stick the front defrost on, then lock with the spare key. The Webasto auxiliary heater does its thing, and rapidly heats the water coolant. Not ideal but at least it is free. The next best thing would be if someone could invent a solution that did the same as this off a remote.

In hind-site, I recommend to all people considering ordering the extra heater options... just order the auxiliary water coolant heater from the factory - you can then use it off the remote and timer and enjoy warm air from your vents as soon as you jump in and have your windscreen defrosted for you by the warm air. If you need an additional air heater (e.g. for overnight), then fit this as aftermarket, with all the whistles and bells options you require.

You get a firmware update with the kit which changes the ome heater back to webasto so works as a parking heater .
I have just purchased my kit and it is all webasto ,and includes the disc and usb stick to do the upgrade .
@Crewey has already fitted his kit and all works as it should from the tele start .

 

[Chris You'll]

Hi @Chris You'll do you have climate or climatronic a/c , if climatronic its slightly easier to wire ,with all the wires under the passenger seat .

Hi @Chris You'll , i'm personally not willing to spend that kind of money on a Telestart kit without some firm evidence it will work. I made inquiries to Webasto on two separate occasions, both times speaking with different people on the technical support line. They assured me the auxiliary water heater fitted on our vans is an OEM version, and that their Telestart kit is most unlikely to work, basically even though it says Webasto on the part it may as well say Volkswagen. I've decided we're stuck with it as VW intended, unless anyone on this forum can provide some pretty solid advice on the procedure they followed. In hind site, the mistake was to order both heaters.

So, I use my simple workaround which works quite a treat...... basically in subzero conditions and all iced up, I start the engine 5 minutes before I drive off, stick the front defrost on, then lock with the spare key. The Webasto auxiliary heater does its thing, and rapidly heats the water coolant. Not ideal but at least it is free. The next best thing would be if someone could invent a solution that did the same as this off a remote.

In hind-site, I recommend to all people considering ordering the extra heater options... just order the auxiliary water coolant heater from the factory - you can then use it off the remote and timer and enjoy warm air from your vents as soon as you jump in and have your windscreen defrosted for you by the warm air. If you need an additional air heater (e.g. for overnight), then fit this as aftermarket, with all the whistles and bells options you require.

Hi @Jimmy T6, i can understand that. I would prefer a free or cheap option so I'm going to try to connect it to my tracker first. I think before this I will just try to put a 12v supply to the relevant terminal and prove it will switch.

I like the idea of the coolant heater running before the engine starts as to me this is what is designed to do. It gets pretty cold out here -20 is common in winter.

I just can't understand why it doesn't come with the remote, I would prefer to have no remote for the night heater asks one for the coolant.

 

[Chris You'll]

Hi @Chris You'll do you have climate or climatronic a/c , if climatronic its slightly easier to wire ,with all the wires under the passenger seat .

Hi @carlg, I have climate a/c. I also have LHD so I'm guessing it will be under the drivers as this is where I think the 2nd battery is. I'll take a look tomorrow.

 

[Chris You'll]

You get a firmware update with the kit which changes the ome heater back to webasto so works as a parking heater .
I have just purchased my kit and it is all webasto ,and includes the disc and usb stick to do the upgrade .
@Crewey has already fitted his kit and all works as it should from the tele start .

I would be happy to pay for the kit, but I'm just not sure if I understand the control bit. Obviously remote on/off, but does this then enable modes to be selected via the overhead control panel?

 

[carlg]

Hi @carlg, I have climate a/c. I also have LHD so I'm guessing it will be under the drivers as this is where I think the 2nd battery is. I'll take a look tomorrow.

There should be a 17 pin red plug under your drivers seat ,which is the loom from the from the auxiliary heater .my kit instructions are for a left had drive .I think you only have 3 wires to connect when it is clamatronic .
The remote turns the heater on ,then a short delay the the dash fan will turn on and blow warm air at the windscreen .