hello, have a question: my car was at the end of september for general overhaul in the workshop. here was also the complete cooling system replenished. today I discovered that the entire cooling water was frozen, i.e. the workshop did not use frost protection. trusting that the workshop had thought about it, I did not refill anything, especially since the water level was at its maximum. someone here has an idea whether such a thing is normal (from the workshop) and how high the financial burden is. and one more question: before I noticed the whole painter I was still driving with the car and had considerable problems to get a walk in. first I pushed it to the general cold, but when finally no improvement occurred and finally no walk was taken, I discovered the frozen water at a glance under the hood. can the switching problems be related to it? would I be able to do so? about feedback very happy. best greetings micha