I have owned my 2015 audi 8l for 6 months and it has started to stall whenever i start the initiation button. often times it will just shift off causing me to have to restart it multiple times. i brought this issue up my local audi dealership and they have acted as if they were totally unaware of this issue. also i keep getting low pressure in my from right tire, this keeps me from being able to drive long distances as i am military stationed in an isolated area. *tr