With the elec stability control being intermittent this is being caused by the abs module going bad/intermittent the brake pedal pressure changes. i have experienced this with my 2002 ram 1500 (4x4) as well. this could be a problem in all cars and trucks. the cost the fix for an audi is around $2500.00 and my ram was $1300.00. *tr
The first throttle valve malfunction happened on july 2013. cost to repair 1557.95 part cost 878.00 mileage 66784 the second malfunction happened on oct. 14, 2014 to repair 1200.00 part cost 913.00, mileage 69202 what happens here is the engine shuts down. there could have been e major accident if she was rear ended. i called audi to tell them the part was defective, but they would not listen. that is why i think there should be a recall, to send them a message. *tr