Glühzeitsteurung (und Heizung) beim ASZ

Hello,

for those interested:
"Through the now-integrated control LEDs for incandescent bulbs and PTC air heaters, I was able to determine that PDs (at least the ASZ) are now relighting as quickly as my old 97 AFN – approximately 2 minutes."
ALH and, presumably, the ASV (i.e., the most recent generations of VP), continue to pursue this indefinitely.

And while the glow-stick water heaters are turned on even when the engine is still lukewarm (the thermometer is still at the cold end), the PTC heater remains active well above 70°C -> the thermometer with its plate function is already at 90° when it is turned off.
However, it can also be manually turned off at any time by turning the heating control approximately 1 cm away from the hot connection.

Hi Ulf,

with which relays is the PTC switched? In the Ibi forum, someone mentioned (I don't know if you've seen it - thread "TDI doesn't heat up properly"), that this could be done with relays 53 and 100 in the central electrical system, which, as far as I know, are used for completely different things.

At the VP, the relays for the GSH are, if present, located at the front of the engine compartment, so it would be interesting to see how it is with your ASZ.

Best regards,

Jan

Jan6K wrote:

Which relays are used to switch the PTC? In the Ibi forum, someone mentioned (I don't know if you've seen it - thread "TDI doesn't heat up properly"), that this could be done with relays 53 and 100 in the central electrical system, which, as far as I know, are used for completely different things. At VP, the relays for the GSH are, if present, located at the front of the engine compartment, so it would be interesting to see how it is at your ASZ.

Hi Jan,

the colleague in the Ibi forum is right - at least for my Polo
He has 2 perfectly normal relays in the relay box behind the instrument panel (I also wrote this as an option in the GSH parts article update). One of them has the number 100 (which indicates a high level of performance), and the other might have the number 53.

By the way, the familiar 109 main relay is also back on board...

Hi Ulf,

do you then have 2 relays 100? Because a relay is normally used as a relief relay for the X-contact.

Best regards,

Jan

ALH and, presumably, the ASV (i.e., the most recent generations of VP), continue to pursue this indefinitely.


My ALH has never overheated for longer than 180 seconds, and it was extremely cold at that time.
Is the afterglow this drastic? Normally, it lasts for less than a minute.

See you, Gremlin

[quote="ulf"]
[...]And while the glow plug water heaters are turned on even when the engine is still warm, (the thermometer is still on the cold side)...

Hello Ulf,

shouldn't it be "turned off"?

Although I am a fan of control indicators, I have not yet considered using an LED for the pilot lights. Due to my space heater, I rarely need to light the pilot lights anyway. Also, the pilot light water heater, which I don't really like anyway, is therefore essentially out of use for me. Can I actually disable it, for example by pulling the relays, without causing any errors? I think the PTC heating element is a good thing.

mcgregg

Can I actually shut it down, for example by pulling the relays, without causing any errors?

just remove the corresponding security strip (on the battery). disconnecting the relay results in an error message.

btw: in the Octavia plans, the GSH is marked with a '*': only for vehicles with special equipment
a note on re-imports (without 'special equipment')?

See you, Gremlin

Hi,

Quote:

My ALH has never overheated for longer than 180 seconds, and it was extremely cold at that time. Is the afterglow this drastic? Normally, it lasts for less than a minute.

It seems your automatic system is running a different program. My ASV does it like this, and Ulfs ALH seems to be doing the same based on our comparison:

At the current temperatures around 0 degrees, a full four minutes of burning time is required; if it is colder, this also applies.

Summer, I don't know, but I also saw that even when the oil temperature started at 50 degrees, it took almost a minute to warm up...

Best regards,

Jan

Jan6K wrote:

Do you then have 2 relays of 100? Because a relay is normally used as a relief relay for the X-contact.

Hi Jan,

at my place
Large heater = 100
Small heater = 53
X-Contact = 18
Pre-pump relay = 53
Incandescent bulbs = 103
The infamous = 109

. . . and there's also a 53, the meaning of which I don't yet know.
I will occasionally disconnect it and see what stops working. Or, query all error codes, maybe it will be flagged . . .

mcgregg wrote:

[...]And while the glow plug water heaters are switched on even when the engine is still warm, (the thermometer is still at the cold end)[...] Hello Ulf, shouldn't it be "turned off"?

Yes, of course. Which specialist actually placed B and N directly next to each other on the keyboard

Quote:

. Furthermore, the oil-fired water heater, which I already didn't really like, is therefore essentially out of a job for me. Can I actually shut them down, for example by pulling the relays, without causing any errors?

-> Try it out. . . As far as I know, the relay is monitored, but it doesn't necessarily need to be monitored with every MSG / software.
Besides the relay, there should also be fuses in the circuit. Just pull them, because, as far as I know, the current flow is not monitored.

Hi,

In my 6N repair manual, a 53-piece part is also listed as a relay for the fan of the air conditioning system, but you don't have that, and for certain engines (but this doesn't matter because 6N is different from 9N), it is also intended for the second stage of the fan in cars without air conditioning.

Best regards,

Jan

Addendum:

ulf wrote:

. . . and there's also a 53, the meaning of which I don't yet know. I will occasionally disconnect it and see what stops working. Or, check all the error codes, maybe it will be identified. . .

Okay, so, the previously unknown 53 is for the fan cooling system.
VAGCOM revealed the issue with the control unit during the diagnosis. . . If you remove the part, the two (yes, the Polo has 2) cooling fan motors will stop working.

"However, nothing is recorded in the fault memory in this case, unlike, for example, the glow plug relay."

Hi,

Quote:

so that the two (yes, the Polo has 2)

And without climate control... anyone could have done it, and a sensible, dimmable instrument lighting system would have been a good addition.

My 6K with air conditioning also has two... I'm definitely going to analyze the switch, because I previously thought that they were switched as "steps", meaning that the second one only comes on at high load or with the air conditioning.

Best regards,

Jan

My 6K with air conditioning also has two... I'm definitely going to have to analyze the switch, because I previously thought that they were switched as 'steps', meaning that the second one only comes on at high load or with the air conditioning.


it seems that they prefer to ensure a uniform flow, but apparently they would rather run the fans in parallel and then either at half or full speed. This also applies to Climatronic....
Interestingly, according to the circuit diagram, the thermostat only activates the fan at level 1. Level 2 can only activate the air conditioner...

See you, Gremlin