Absolute noob when it comes to this but thought I'd give it a shot before I ring a garage. Cars been fine all week. Last night had a few issues with locking and unlocking with the key but it worked and was able to drive it last night and this morning, but later today I was at a red light and the abs warning light came on, then the passenger airbag light came on THEN I got an error message saying brake error and a slight loss of power. Now when I try and start the car it sometimes starts and sometimes doesn't dependant on how long I leave it (battery?) but no matter what it always dies after a minute or 2. Any ideas ? Can smell a sort of burning near top left side of bonnet, step dad says starter motor not disengaging possibly ? I have no clue. Any help would be greatly appreciated. Long read I know. Sorry.