Please note - I am not a mechanic or expert in anything. You seem to dislike the VW computer programs even more than me, that's going some. I'm not a VW fan or believed in German engineer quality on cars being that great this century. My stock answer to just about anything on the car is to keep the battery in a good state of charge because if it gets too low even if the car starts and the lights seem bright enough you can still get lots of unexpected issues. Some issues with warning lights and messages but some issues perhaps before these warnings. This because the VW computers and their programs don't like low battery charge. You are not just dealing with HAL900 but a group of them. Skoda, SEAT, VW, Audi, are all VW/VAG with lots of the same sort of stuff and parts so lots of similarities to them so the garage should have some idea of what they're doing. Normally it's the driver that lets the battery get in a state of low charge with use, abuse, neglect and mistake(s) - but it can be the car's charging system or eclectics or computer programs perhaps. Hopefully now you see that is a mistake. This will probably be part of your "battery" problem. Yeap the computer program parameter is too wide so don't rely on it and carry on looking after the car. Part of looking after the car is to read and refer to the Owner's Manual, if you do so you will know more about your car than many long term owners - and sorry to say - but - I am going to anyway prevented many of the issues you've had, you probably know RtFM. Get an appropriate battery charger and FULLY recharge the battery ASAP as this could end a lot of your issues - until you let the battery run down too low again which you wont of course now you know. 😉 Charge the battery FULLY an appropriate battery charger, check the Tudor EFB TL600 has been 'coded' in as a new battery to the car's computer program correctly. And RtFM. 😊 - https://manual.skoda-auto.com/004/en-com/Models Just in case you could check for any Recalls as it not all your fault (that 'P' position thing wouldn't be you). -https://www.skoda-auto.com/services/recall-actions (Edited as I put same link twice, now corrected) Let us know how you get on.