A/C Expansion Valve and Cut Off Valve

[f1geek]

The part is available. Why not buy it and have an independent shop install it?

https://www.ecstuning.com/b-genuine-vol ... m0959603e/

https://www.shopdap.com/4m0959603e-vw-audi.html

probably others have it, too.

[Thorallophon]

Yes, I've looked online, but when you contact the seller, either by phone or email, the ones I've contacted have said they are actually out of stock.

As for the windshield, yes it has heat, but the side windows get fogged up if I sigh too hard. Running the fan sort of works, but only if I'm in the car alone. And as far as I am aware there is no PTC heater, and if there is, it's not working either.

Haven't tried the wreckers yard yet for second hand parts, but I'm getting to that point...
Jon.

[f1geek]

There is a PTC heater in your car - all e-Golf’s have them. Look under the hood and you will see it is a box fed with orange high voltage wires near the passenger side firewall.

If PTC is not working then that is another issue. Time for you to get OBD Eleven to see trouble codes.

[f1geek]

Have you tried turning off the A/C from the HVAC control panel and then increasing the temperature? I rarely have the A/C on in the winter.

[Thorallophon]

Update: found the part on e-bay (at a third the price!). Took it in last week and they replaced it. Still not working. They are now convinced that there is something else wrong and now want two to three days to pull the car apart and diagnose. Supposedly neither do the engineers at vw Canada. Anyway, not likely. Going to get a second opinion.

However, something the tech said when we were talking that struck me, something about the system staying pressurised and not resetting. I had noticed earlier that there had been a software update and when I went into the e-manager I couldn't delete one of the timers. I deleted all of the others and reentered the critical ones with new names; still wouldn't / couldn't delete that one entry.

I am now wondering if there is some command that is stuck and overriding the system, or some corrupted code in the database. Going now to see if there is a soft reset for the infotainment system -sort of like a reboot for windows. Will let you guys know if it makes any difference.

Jon.

[f1geek]

Press and hold infotainment power button for at least 10 seconds (or maybe 15?) to reboot infotainment. Maybe also disconnect 12 V battery for a few minutes for good measure.

Is heat working now in winter time (with A/C) button turned off?

[Thorallophon]

Thanks F1geek, that worked. I did it in stages, restart/soft reset of the infotainment system, then went through the menus to do the factory resets. Neither worked, at least as far as I could tell. In the time it took to go through all the menus and return all the settings to the way I like them (5-10mins), no heat was coming from the vents (fan on auto, temp set to 22*C, outside temp 0*C).

Ah well, it was a nice idea. I guess the next "reset" step would be to do a hard reset and disconnect the 12v battery, but I don't have on hand the radio security code(s). Will probably wait until the new year cuz a cold car is better than no car!

[f1geek]

I am still surprised that PTC heater does not come on. Have you checked all the fuses to see if one is blown? I know PTC heater is not a 12 V device so probably does not have a fuse in the 12 V fuse box,but you might as well check.

[cattlerepairman]

FWIW, my 2017 eGolf was just in the shop for the dreaded refrigerant shut-off valve issue.

VCDS found 59079 and 59103, valves 1 and 4.

In February, still under warranty, they replaced 2 of the 4. I asked them whether we should do all 4 or will I be back in a few months when they have failed?

"No, No, we just replace the ones that failed, the others are good". ARRGH. Here I am, doing the same spiel again, but this time it comes out of my pocket.

With the extortionist shop labour rate applied for "electric vehicles", parts and labour approach CDN$ 2k for this repair. I did a quick scan for the parts from the usual online sources and they are either "on back order", "currently not available" or the ones that do have them seem to be far away from me.

[f1geek]

I only see one shut off valve on this schematic - #6

https://www.volkswagenpartsplus.com/oem ... 4m0816703c

Where are the additional three valves you mentioned?

Thanks!