Activate the auxiliary heating of a Phaeton V10
Step 1: read errors
If the error "Heater locked" is stored, the auxiliary heater must first be unlocked. But beware:
This error may or may not have a real cause (as in my case). Should except this
There is no error or "low fuel level" and you can usually continue with confidence. To the
There should still be enough fuel when operating the auxiliary heating
Step 1.1 (Heater is locked)
Go to the parking heater control unit (18) and select "Adaptation".
If this button is gray, the STG reports to the diagnosis "I am not configurable" and must be manually activated
be encoded. Simply enter 1-0-Q (without the hyphens) in a row. You can see this on the bottom right
Field for manual function entry as soon as you start typing.
If this worked, go to channel 003 and write the value 1 (click on test first to save
activate). Caution: Reading out again will always give you the value 0, since channel 003 is only used for
Unlock is there and not for customization!
Step 1.2 (Heater has been unlocked)
To be on the safe side, delete the error memory again and read it out. If there are no more errors, go
continue with step 2.
Step 2: Login & customize the parking heater
You have to log in to recode the parking heater. To do this, click on in the control unit dialog
"Access authorization" and enter the login code 22106. After the OK, a "Login successful" dialog should appear
to appear.
Enter the manual coding again with 1-0-Q and write a 2 for the in channel 009 instead of 1 for the auxiliary heater
parking heater.Step 4: Shut down the coolant shut-off valve
All Phaeton models, except the V10, have a valve that controls the cooling circuit of the interior of the
of the engine during auxiliary heating operation. The meaning behind it should be that the interior as quickly as possible
gets warm and so little fuel is used. Actually, this behavior goes against the general policy of
VW and other manufacturers, since they always heat the engine with all other models in order to use the diesel
to get up to operating temperature quickly.
But it doesn't matter: If you want exactly the same function as you would with a Phaeton ordered from the factory
with an auxiliary heater, you have to retrofit the valve and the control unit on the auxiliary heater itself
connect. In and of itself this is not a feat of craftsmanship, but I advise against it.
The Webasto parking heater in the V10 has a heating capacity of 5kW within 30-40 minutes
Both the engine and the interior are at “operating temperature” for the heating period. I personally want those
Auxiliary heating in the Phaeton anyway only because of the engine, because the interior is even in the most arctic winter
within a few minutes to a comfortable 21°C.
If you were to start the parking heater now (that would already work!), it would switch off after a short time because it
cannot find the appropriate valve. A solution that is preferred in various US forums is to simulate using
a load, which I see in two minds, because then the parking heater also thinks while driving,
that the engine is not stuck in the cooling circuit. I don't know what the consequences are.
Just go back into the adjustment with the manual coding 1-0-Q and encode channel 004 to the value
0 (default should have been 1). Then the auxiliary heater is no longer looking for the valve and it should
work without problems!
How the parking heater itself is configured from the on-board computer, everyone must do it themselves
read the manual or the internet (or just play around.
Ing. Alexander Nassian *
www.picadreams.com * picaschaf@me.com