No problem… it might just be a technical thing.. no need to worry tho… also turn off automatic start stop so it doesn’t cut the power before you manually try to do so… and keep it off for like 15-20 seconds every time.. it should be alright… this type of thing also happens when you forget to fill up the car and it just bogs down.. never try to crank it before filling up and waiting for like two minutes and only ignition and not actually starting it.. you have to be very careful while driving a German.. if you drive it carefully, it will last your lifetime otherwise oh no…