The contact owns a 2014 Audi S7. The contact stated while driving 40 MPH, the vehicle stalled without warning. The contact pulled over but was unable to restart the vehicle. The vehicle was towed to a local dealer to be diagnosed but was not repaired. The contact stated there was no warning light illuminated. The manufacturer was not informed of the failure. The failure mileage was approximately 70,500.

- Santa Barbara, CA, USA

Vehicle stalled during highway driving. Failed to restart. Towed to a dealership. Diagnostic showed both turbochargers need replacement due to oil starvation caused by a design flaw.

- Rancho Cucamonga, CA, USA

Driving on the highway during a road trip from Florida to Wisconsin, our engine stalled while coming to a stop. We managed to get it to an Audi dealer and it was determined both turbochargers were broken. Both shafts had snapped and the car was un-drivable leaving us stranded in Georgia. This is a design issue for the 4.0T engines and VW/Audi has refused to implement a fix beside the oil screen band-aid. The oil screen, since it is not serviceable, will slowly accumulate debris and restrict oil flow to the turbos and cause them to be starved of oil. Simply removing this oil screen would be a suitable fix but Audi has refused to acknowledge their design is faulty. This failure could be extremely dangerous if they were to cause the vehicle to stall at speed or worse, have the engine ignite do to the mental on metal grinding of the turbo turbine. Please help us.

- Neenah, WI, USA

I have a problem with one of turbo, it was defect by factory, mostlikly it is quility control issue it happened on 62,000 miles on the car. This is very offten problem with this car which is confirm my statement about quility control. Now I have a problem with aoa, they dineid to cover this problem. So far I hed A6, A7, A8, and A7S, I know quility of Audi before and now. This is not same car. My recomandatin stay away from Audi.also aoa never inform me about my rights for Volkswagen fuel economy settlement.

- Park Ridge, IL, USA

In motion normal driving 45-55 mph under acceleration on long on ramp to interstate. Reached a ramp meter. Accelerating form ramp meter, I noticed increasing power loss and could not reach highway speeds. All warning lights appeared (TPMS, traction control, transmission issues, etc.) I instantly merged right with flashers having to avoid another on ramp of traffic. At very rough idle I could not accelerate beyond 1100 RPM I tried moving again as the transmission seemed to work but very rough idle and again, would not go beyond 1100rpm. It was towed to shop. They notated "catastrophic turbo failure on both banks". they said it was due to a common problem they have noticed of an oil check valve filter screen. I recently had an extended warranty service done by dealer. Knowing the valve has had issues, I texted the tech about this valve and his response was it was not convenient to access. I have texts from tech as this is the best way for them to communicate. It is disappointing my car was effected by this easily found issue of oil check valve filter and even more upset that I brought it to the attention of an Audi service tech who did not even offer a solution or price to do this repair while servicing a warranty oil separator that sits directly above the faulty part that starved the turbos of oil and caused, as described by the local shop, " catastrophic turbo failure". thanks for hearing me out.

- Denver, CO, USA

My family and I were driving back home from a 5 hr trip when my car stalled completely on a 4 lane freeway. We stopped at-least 4 times during the trip and the car started with no warning/symptoms or check engine light at all. No hesitation on the power while driving. About 1 hour left until we get home, we hit traffic and luckily we decided to change 1 lane to the right from the farthest left(fast lane) before hitting a full stop. That moment, car stalled and it won't let me restart the car. I have no idea what is going on as I cannot even turn the car off/on and the electronics won't work on me as well. I am now completely blocking the 2nd lane from the left of a 4 lane freeway with a 70 mph speed limit. Luckily I am not alone in the car and my dad is closely following behind us to help me push the car 2 more lanes to the right to get to the shoulders. Was also fortunate that there was a California highway patrol responding to a 911 call whom helped us by blocking the lanes but had to leave right after after asking us if we are going to be alright without him. I could not imagine what would have happened if I was by myself without nobody I know around me. I wonder if people would have stopped and help me out or I could have been seriously hurt as my car was totally stopped in the middle of a 4 lane freeway and cannot even restart it to limp it to the side shoulders. I called my Mercury insurance roadside assistance but 30 mins later, the promised tow truck company still hasn't called. I decided to give it another try, car cranks but won't turn. Successfully restarted it by slightly pressing on the gas but will stall again after the RPM falls below 800 RPM. Still no tow truck, I told my family that I will give it a go as I will try to keep the RPM more than 800 RPM but follow me closely if the car completely dies on me again. Car is now at an Audi dealership.

- Reseda, CA, USA