Rear door doesn't close, lock/unlock & window doesn't work, lights won't go off. All in same time.

scan the car, the door non locking should come up, along with a reason.
If the connectors are corroded I don’t think VCDS will say that, or will it be able to communicate with the door module?

I’m no VCDS expert, so genuine questions
Ian
 
for front doors, "no communication, sporadic" should be visible. "safe" functionatliy should also bring up an error, "won't de-safe" for example, if the microswitch is faulty.
 
IT'S ALL WORKING AGAIN!
As soon as the weather warned up a bit today, and the condensation after the sudden hail/snow disappeared of the battery connections, the window works again, along with the driver and remote lock! Yay!
There's still a bit of water on the bottom of the tray, I've left the hidden cover up, so it can dry better, but it all seems working great again!
I'm not sure that's what caused the issues at once, rather strange to be fair, temperature suddenly drops 10c and electrical parts go offline. To be safe, as recommended I'll check the b pillar connections later, to make sure all good and rust free as much as possible.
For now I'm just glad it didn't cost me anything as I've already forked out quite a bit this year and insurance here soon as well.
Thanks for the help folks!
 
So the issues came back again after a few weeks. Unfortunately it didn't go away again in next few days, so I took the door car off and look for possible rusty connectors or any issues. I'd unplugged the main connector as well to check, one held by pink safety tag, but found nothing.
But after assembling the bits, and trying the rear window, the system was work again! Yay! Not sure it was a connection issue or something else, but it works again thankfully. I'm gonna keep an eye on it of course.
 
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