Joined the egg club about two weeks ago and have been enjoying it immensely. I did a search and found some references but nothing that is specific to my question. Last night I had the chance to VAG my V10 and found that I have the Auxiliary Heater installed? After reading the forum it seems that this heater is not normally installed on NA vehicles. I forgot my laptop today and copied the information from another persons VAG output below. Mine is the same but includes an error or two. The error was about missing the RF receiver or key fob. I will add my VAG output this evening after I get home. Here is the strange part (OK I know VW does some weird things… considering the source, maybe not so strange after all ) I do not have the additional buttons in the over head by the compass and did not receive the RF transmitter from the dealer. I was able to exercise the various outputs of the heater via VAG, and could hear it run. I then contacted the dealer and they contacted VW, which did not have a clue and said it should not be there. OK time to regroup, it seems that the production plant installed this at the start of the build of my egg and then later the destination country was changed and it was deemed not to remove it because it would be too much trouble, WAG on my part. Where am I going with this? I would like to complete the install and was wondering if the collective could help me with the necessary part numbers.

VAG Output:

Address 18: Aux. Heat
Controller: 7L6 819 008 B
Component: Standheizung E1MAC 0235
Coding: 0000030
Shop #: WSC 31414

I look forward to any help you may have.

Regards,
MT


Modified by MonsterTurbo58 at 7:58 PM 1-21-2007

Thanks, did not look in the archives, off to do some research.

Regards,
MT

Thank you for the offer. Do you have access to VAG-COM? If so could you send me a scan of module at address 6E and 18.

Thanks

MT

Address 6E: Ctrl Head Roof
Controller: 7L6 919 044 J
Component: DACHDISPLAY 0538
Coding: 0000000
Shop #: WSC 03999
No fault code found.

I have taken a look at the parking heat with some interest. It looks like all of the important hardware and plumbing is already installed in US V10's including the circulation pump. The exceptions are the timer and or remote. I will post my coding below. I think there are several solutions depending on what your needs are. The first one I am in the process of pursuing. I would need p/n and wiring diagram help on the second.

Webasto sells timers and remotes for the same heater here in the US. I have no pricing in yet. The remote has a much shorter published range than the VW unit.

1. Install the Webasto brand receiver (for remote access) and or Webasto timer.
2. Install VW receiver, and or timer.

For folks in the US that want the VW timer you would need to change the control in the overhead clock which would mean you no longer had OnStar. For 04 V10's OnStar will no longer be available after "07" as the analog equipment in your vehicle is not considered upgradeable to digital.

This MOD is only realistic for V10 owners as the cost of adding the heater and everything associated with it would be extremely expensive.

I realize some of this has been discussed on another thread.

If this is something that others are interested in should we move all of this to that thread in the FAQ?

My coding
Address 18: Aux. Heat
Part No: 7L6 819 008 B
Component: Standheizung E1MAC 0235
Coding: 0000030
Shop #: WSC 31414

Thoughts?

First want to say thanks to all for the helpful information. I have read the archived information about the heater and vag-com module lists and believe this can be made into a fully functioning option. Below is a list of Touareg's that scanned both the heater and over head console.

So far the part number from ETKA and past VAG scans for the Aux heater and timer are as follows:

AUX Heater Timer Model
7L6 815 071 A 7L6 919 044 F 2004 German V10
7L6 815 071 B 7L6 919 044 G 2005 Canadian V10
7L6 815 071 D 7L6 919 044 G My 2006 V10
7L6 819 008 B 7L6 919 044 G 2004 American V10 X 2

There are additional parts in ETKA, but the one description for the proper over head is part number 716 919 044 F which has been superseded by 7L6 919 044 J. This is the display and operation unit with timer switch. I am going to approach this step by step, first get the timer then the RF unit inside and key fob. Once I have the display unit installed I will let everyone know the outcome. There is also an additional wire loom for the heater (forgot part number) that I may need for the RF stuff. That all for now and again thanks.

Regards,
MT

Thanks

Thanks for the clarification

Currently only pins 2, 3 and 6 are used in the US per No. 47/3 of the US wiring diagram.

I think the Euro wiring to the unit itself may be different.

Can anyone with access to the European wiring post the wiring for the 6 pin connector on J162?

Spock do you have this kind of info? If so it would be greatly appreciated!

Currently Pins 1, 4 and 5 are not being used per the US wiring diagram. This needs to be confirmed. I think pins 1 and 5 would be wired the Can Bus for use with the normal VW controls.
I am guessing pin 4 would go to the fan blower circuit directly but I am guessing.

If you want to go with the Webasto timer and or remote you would only need to wire pin 4 to the blower and the timer or remote to pin 1 and 5.

Coding would also need to be changed from 0000030 to 0000000 to enable full functionality. For some reason my system will not allow me to recode Aux heat. If anyone has any suggestions for resolving this I would appreciate it.

An interesting side note to this is that Webasto recommends using the heater once a month to insure proper operation, longevity and clean fuel. So warm weather US V10 owners may want to consider using their VagCom to fire up their Aux heaters periodically. Unless the outside air temp less than 41F and your coolant is below 167F your heater will never turn on.

Quote, originally posted by v10tdiguy »

4. Fan Blower (this pin sends a signal to operate the interior fan)

Sends a signal to what? I would guess not right to the fan circuit but to something related to the REST function.

E_

Modified by orttauq at 5:48 AM 10-5-2006

Using either one or both of them to activate the heater and recirculation pump would be relatively easy. This would pre-heat the engine and not the cabin. To do the latter would require the interior fan to run which is typically done from pin 4 on the heater somehow. I could build some sort of relay setup but I don't want to go that far. My goal is to keep this as simple as possible.

It does sound like V10 is interested in the full VW setup which will require the European wiring diagram.

Also I am not able to recode Aux heat to "0000000” after I press "Do It" and it spends some time thinking about it nothing happens. I believe the coding change may be necessary to activate the interior fan. If anyone has any ideas that would allow me to recode I would appreciate hearing them.

Also do you know a good source that would have the European repair and or parts CD in English?

I can not confirm what model heater is in an "07" but I would be surprised if it would make a difference.

Just recieved my Bently and it had the following in the aux. heater section.

Auxiliary engine coolant heaters on USA/CDN market Touareg with V10 TDI-PD engines are NOT equipped with programmable timer or radio remote control functions (information at time of publication).

The model of the aux. heater is a Thermo Top Z/C - D

V10,
Looks like we have the Top C that you mentioned, could be the other letters are VW OEM designations. I am new to Bently but here is what it say about the 6 pin connector on the heater:

1 - Webasto - Diagnostic lead
2 - CAN high (optional)
3 - CAN low (optional)
4 - Engine Coolant (EC) Switch-off Valve (heater) N279
5 - Main switch
6 - Metering Pump V54

Seems to be a bit different from yours, could be that VW had the heater made to there specs as your pin out does not show a can-bus and Bentley's does. After looking over the theory of operation I am not sure about needing any additional wiring. Could be wrong, but seems that everything is done over the can-bus. Take a look at 47/3 and 41/3 wires 12 and 10 are the infotainment can-bus connections. When I first ran vag-com I was able to exercise the heater including the circulating pump. It seems to me I am on the right track, just need to get my timer module so I can manually program/start the aux heater to verify can-bus control. If not a few additional wires are not going to kill me

Regards
MT

The functionality and wiring of the Thermo Top C is the same as the Z/C -D.

What is interesting to me about your post is that I have recently received the Bentley CD also and have downloaded their latest updates and the wiring diagrams I have access to do not include the information you show below.

You may want to double check your pinout with the reader zoomed in. According to Webasto you have pin 1 and 2 reversed and pin 5 and 3 reversed. If pin 3 and 4 turn up as optional after you double check your wiring is not in place.

Please confirm which Bentley CD you purchased and the pinout on the 6 pin connector and post your findings.

Have you got pricing and sources yet for the VW parts, if so please provide your findings.

The Webasto timer is about 150 and the remote kit 275.

Also, I referred to you in an earlier post as V10 by mistake.

This is why I have asked for help from SpockCat regarding the wiring diagram for a similar European vehicle.

Standheizungen serve the passenger space of vehicles of all kinds for heating, without being dependent on the heat emission of the running engine. They are operated generally directly from the tank with the fuel of the respective vehicle and to know either the air of the interior to heat or over the cooling water cycle of the vehicle into the heating cycle be merged.

Manufacturers of fuel-claimant Standheizungen are e.g. Eberspächer or Webasto.

Besides the heating can happen also electrically by means of light-current, this functioned however system-dependently only, where a mains connection is present. Manufacturers of electrical Standheizungen are e.g. Calix, Defa or knights.

You must speak German! I wish I did.

You may already be aware of this but your V10 has a diesel powered heater already installed. Currently it is being used only when the outside air and coolant temps are below a certain point. The aux heaters purpose in the US is to boost the coolant temp faster than the engine capable of on its own. It only works when the engine is running in the US.

In Europe you can make the same heater run while the engine is off via a remote, cell phone, or timer depending on which option you have installed with the engine off. It will also run the interior fan so that the vehicle is warmed and windows defrosted.

What I am trying to do is enable the European functionality on my vehicle. I am primarily interested in the remote function. I am exploring the opportunity of using parts from the manufacturer of the heater instead of VW parts in the hope of reducing cost and ease of installation.

So if you park your vehicle outside in a very cold climate this may be of some interest. Otherwise it probably does not make sense.

V10,
The pin out is a cut and paste from my Bently, did not want to fat finger it If it is wrong, please dont shoot the messenger. For my research into getting more information I did a search for aux in Bently and found several areas that came up with a hit. The one that had the most information about the heater it self was not the one in the wiring, some where else, maybe maintaince (at work and accessing Bio-Ram) this area also had a picture of the coolant flow. Very interesting as there is a seperate coolant path with another pump and radiator to cool the fuel and alternator... sorry about the off subject content... will return you to regularly scheduled program Please take a look at both drawings 47/3 and 41/3 you can see these wires (12 and 10) are the can-bus (pins 2 and 3) on the heater which go to both the RF controller and the Timer module. I was able to follow these two signals to other modules with one of them being the the dash. The other thing that gives me hope it is can-bus controlled was able to fire it up via vag-com. Could be that my logic is flawed and we will see after I order my module. Today I recieved an email with some questions concerning my part number (more research) and may not be able to order it until Monday.

Regards,
MT

Did you buy a Bentley CD or Web Subscription?

Because you can operate your heater through your VagCom really does not mean you are going to be able to operate in the park heat function and get the interior fan to run.

After a lengthy session with Webasto tech support I have a thorough understanding of how the heater functions.

I can also run my heater through the diagnostics functions which is accomplished on the diagnostic line pin 2 to the heater. I can also run my heater via pin 3 via the basic settings function. (Both of these are shown in the diagrams you reference) I only have 3 wires going to my heater (pin 2, 3 and 6). Six wires are needed for full functionality.

I am not trying to discourage you as you seem like you are very capable. I and webasto believe that for the added functionality to be implemented you will have to know where to connect the wires from pin 1, 4 and 5 on the heater. More than likely Aux Heat will need to be recoded to"0000000". I am not sure if you tried this yet. I can not seem to get mine to accept the new code.

The diagnostics line pin 2 can only be used for basic diagnostics and the transmission of fault codes. The heater can not be made to function as a parking heater through this line.

To get the parking heater to function pin 1 on the heater has to receive a 12V signal.

To get the fan to function pin 5 has to receive a signal.

I am referencing the actual pinout of the heater. I don’t think your info above is doing that. If it is it is in conflict with drawing 47/3 which correctly show pin 2 being the diagnostic line and pin 6 signaling the pump.

I want to make this work but I am not going to order parts or access the heater until it can be determined where the wires from pin 1, 4 and 5 on the heater go. Currently the published diagrams only show where the wires to pin 2,3 and 6 go.

I just got off the phone with Webasto contact after finding the pinout document I am sure you were referencing.

Webasto has assured me that this document is INCORRECT. The wiring diagrams are correct although incomplete.

I also confirmed that my previously posted pinout and understanding of the heaters operation is correct.

I know this may not give you complete comfort but short of pulling the wheel, and well cover off I would be willing to wager my source is correct.

V10,

Have the CD version. All is good, my logic on getting this to work is a little different. I will need the control module/timer at a minimum to make the aux. heater work. The RF control and timer are two separate ways of controlling the heater and the timer is the cheapest and easiest to install. If I find I need to add (sounds like it) additional wires so be it. Just getting ahead of the game. When I started this thread I cut and pasted the VAG output from another Touareg. Mine is coded 0000000. Will add my corrected one over the weekend.

Regards,
MT

I am glad you are approaching this from a different angle. Hopefully I will provide some info that you will find helpful and visa verse.

I will be curios to find out what the VW parts will cost when you get that info. I am primarily interested in the remote option.

You may be in luck if you are already coded "0000000" as I am not.

If in your case the additional wires I am referencing need to be connected do you know where to connect them?

I really hope all of the wires are there for you and all goes smoothly.

Your perspective is valued and thank you. As I am waiting for the timer will start to do research (Hey Spockcat) into finding out where the additional wires go. Hopefully the can-bus does play some role in this and will make the wiring a little easier. The timer unit cost $265... yes I know ouch.

Regards,
MT

As you may not be surprised to find out Porsche offers the timer option in the US and the remote in Europe. I priced the Porsche Transmitter and receiver from sunset at about 350. I am confident that additional parts would be necessary. I did not research the timer as it had a different form than the VW part.

MT, you may want to double check and make sure the timer is actually in the overhead control. It is possible that the buttons in that control only talk to the module that actually controls the timer function.

cf. Group Buy ?

http://forums.tdiclub.com/show...basto