I had a similar problem with my Superb iV, and it turned out to be very serious, so I would not recommend, that you continue driving the car. Actually, once the workshop got the car, they were not allowed to release it again, until the problem was fixed. They had to change a compressor for the cooling system and afterwards they could see, that the battery was leaky, and had to send the car to a specialist workshop to get that part fixed.
I suspect, that the battery was damaged, because I continued to drive the car for several weeks after the first warning. But sometimes the warning was there and sometimes it was gone, so neither I nor the workshop took it seriously enough.