2013 Audi S6: engine stalls while driving

Filed Apr 3, 2021 · Engine · 51,549 miles · NY

Having just exited the interstate and stopped at the end of the exit ramp, my 2013 audi s6 started to stall as I was turning onto a secondary road. I managed to pull the car over to the side of the road before I lost all forward power, avoiding traffic in motion in proximity to my vehicle. The car would not restart after a check to insure things such as a proper amount of fuel was in the gas tank. After repeated attempts at starting the car failed, I had the s6 flat bedded to the nearest audi dealer for repair. I spoke to the dealership several days after the incident and they diagnosed the problem as two failed turbochargers. The failure was attributed to the turbocharger oil screen clogging problem. I was told the replacement (parts + labor) would be in the $12,000+ range. I authorized the out of warranty repair as the car was in excellent and well maintained condition and I was not ready to scrap it. The dealer several days later informed me that audi corporate had reviewed the failure and was willing to absorb 75% of the estimated repair bill as the s6 had just come out of warranty and had been properly dealer maintained. Several weeks later I was able to pick up the car with a payment due for repairs (after audi 75% coverage) of $2674.26 with the new turbos installed and the s6 was now running properly again. I now hesitate to use the car for any long trips on the highway due to concern I may have a recurrence of this turbo failure even though the car is being dealer serviced properly at the suggested intervals. Further, I believe this inherent problem has diminished the resale or trade-in value of this 2013 audi s6. I was forced to rent a car for several days to return home after this failure which in total cost was $500+.

Filed Apr 3, 2021 · Engine · 112,021 miles · NV

While driving vehicle stalled on craig and clayton street had to get it towed was told was lack of oil to turbos and turbos blew

Filed Oct 7, 2020 · Engine · 90,000 miles · WI

My turbochargers failed, which I understand is not uncommon with this engine. It was driving normally. I stopped for an errand and it restarted with great difficulty. I then drove some additional distance and it stalled in traffic. It stalled repeatedly whenever the RPM's fell below 2000. I ended up running a red light, to avoid slowing down, knowing it would stall. Fortunately, I was in an uncrowded area. It looks like audi has already issued a technical service bulletin regarding the propensity for turbo failure. I would like to see more than that happen.

Filed Sep 2, 2019 · Engine · 70,000 miles · WA

Vehicle was in motion when it started shaking roughly. The car stalled and wouldn't turn back on. I had it towed home and was able to diagnose seized turbo compressors. Replaced the turbos which fixed the problem but at an enormous cost.

Filed Jul 25, 2019 · Engine · 82,000 miles · NC

I was driving at approx 65mph on the highway when all of a sudden I lost significant engine power in my vehicle. I tried to accelerate and could not so I pulled over and the car immediately stalled and I had to have it towed to the repair shop. The issue is a result of the turbos in my vehicle are damaged. Mechanic said there is a known issue related to a screen that filters the oil that can get clogged overtime and cause oil starvation to the turbos increasing heat and ultimately causing failure. Audi has released a tsb for this fault with updated parts however these issues continue to plague vehicles like mine that have otherwise been taken care of. The repair costs for this could be upwards of $9k all because of a design flaw. Not to mention this could be dangerous if loss of power occurs on the highway which could cause an accident.

Filed May 22, 2019 · Engine · 64,000 miles · NC

2013 s6 with 64k miles suffered turbo failure while driving. The engine stalled while driving and stopped in the roadway. Numerous restarts were attempted before it finally restarted and allowed for a short drive to get off the roadway. This is not an isolated incident and there are numerous similar failures with the audi 4.0t engine. Audi is aware of these failures and has issued tsbs that identify the turbo oil supply line filter as the culprit but they have not issued a recall. Had this failure happened on a highway at speed it would have been very dangerous.

Filed Feb 9, 2019 · Engine · 62,350 miles · PA

Turbo failure at 62,356 miles. Car has been into dealer for all required maintanence. Turbo failure occurred while driving on the highway with my family for a family gathering. Car went into limp mode and nearly stalled on the highway. I was able to pull off to a safe spot and there was an epc error on the dash. The car would not restart. Towed to dealer, and received a repair quote for more than 10k. I believe there are many other customers facing similar issues and audi should look into this issue and cover the repairs. There is a tsb out from audi regarding this. I have contacted audi of america and waiting for a response from them for goodwill repairs.

Filed May 13, 2018 · Engine · 70,000 miles · CA

Failed turbos causing engine to run rich and stall out at any stops making the car inoperable at low speeds. Many reports of my2013-2016 audi s series turbos failing/blowing out. Tsb issued for such issue but no recall. Audi of america replacing with my2017 turbos that have all new parts numbers since this is a known issue with my2013-2016 turbos.

Filed May 4, 2018 · Engine · 60,000 miles · IL

Car suddenly had a "rough idle", I.e. Shaking 1-2inches back-and-forth while in idle, after driving for 20 minutes at normal conditions. Shutdown car. Attempted to restart car, but the engine would not turnover the first attempt. Tried again - engine started the second time. No check engine light appeared, so I assumed car was safe to drive. Drove car to dealer for service, and then I noted that the car started making a feint grinding noise when accelerating. Technician noted that both turbochargers had failed, likely due to inadequate oil flow. Car has 60k miles on it, so a catastrophic turbocharger failure this early-on was unexpected and potentially dangerous (car could have stalled due with engine being starved for air), and no check engine light appeared to indicate something was severely wrong with car. This issue appears to be wide-spread based on discussions available in online forums: https://www.audizine.com/forum/showthread.php/806039-boom-goes-the-turbo