My Audi Q7 ran fine when we first bought it(used March 2020). I drove it for about 3 weeks and then it wouldn’t start. Battery was completely dead. It sat for a year bc the batter was stuck under the seat. We got a new battery in it and it still wouldn’t start without being jumped off. Got it back Thursday afternoon from the shop and they changed the battery control module. It ran fine. The next day we went to eat dinner. It sat for around 10 minutes and the car wouldn’t start when we got back in it.