Corsa Electric Heating Problem

Solar sensor? That's a new one! What's the mileage at? Have you checked the sensor's connections? Could be a loose plug or a damaged wire causing the fault.

It's done 135541 km. Where exactly is this solar sensor even located? And is it easy to get to the cable and plug?

Ah, high mileage for an EV. The sensor's usually behind the rearview mirror, near the windscreen. While it's accessible, fiddling with it without proper tools or knowledge could worsen things. Given the error and poor heating, I'd bet on that connection being the culprit. Just like a bad fuse can kill the whole circuit! But honestly, for 95€ at a shop, it's worth getting it checked out to avoid frying something.

Cheers! Took your advice and booked it in. Turned out to be a defective connection, exactly as you said. 95€ later, the heating's blasting hot air again. Appreciate the help!