I try everything to remove this emergency error on my Skoda Octavia 3 5E 2018. I was in workshop with the car. They told me the error appear due to one defective aerial base (antena). SOLVED: I remove Fuse 17 the one that is responsible for Instrument cluster, emergency call. I try to start the engine but in two seconds the car stopped. I insert back Fuse 17 in the socket than i start the engine. Now the SOS led is green but the error still there, and a lot off errors appear (airbag, assist, etc). With VCDS i have made a full scan and allmoust all modules was in error. I have cleared all the errors and now the error is gone. I repeat: This work on Skoda Octavia 3 5E, after other solutions fail and also after in the workshop they start eat my money.