Power significantly reduced. Clear loss of boost. Eventual complete engine stall. I was fortunate to have been pulling into a parking spot when the engine cut off uncommanded. The car had to be towed to a repair shop. It was later determined the turbos had failed due to a loss of oil supply. The oil supply is cut off due to the singular turbo oil screen being clogged. Regular oil changes are documented at correct intervals. Audi after the middle of my2016 installed a revised turbo oil screen to help prevent this from happening. It is a known fault at audi and should absolutely be a recall to replace the oil screens with the revised versions. It is a major safety issue when the engine can suddenly stop running at any speed.
2016 Audi S6 engine complaints
Page 2 of 2: complaints 11 to 14 of 14, newest first, as owners wrote them.
I was accelerating with traffic while on an on ramp and merging into busy traffic on the interstate, when suddenly I lost power and my car began to decelerate at a rapid pace. There was no throttle when the gas pedal was being pressed. Seconds after that I lost power to the car. Luckily, I was able to put my hazards and coast through 2 lanes of traffic to the shoulder. During which time, I had no power steering and had to fight to move the wheel. I had the car brought to my audi mechanic who said it sounds like your turbos blew and that was indeed the case. He said he sees it all the time on the 4.0 tt engines because of audis poor oil screen design that starves the turbos of oil and leads to the seizing up and breaking.
Turbo failure at 60,000 miles stationary would not start
Turbocharger(s) failure due to oil filter screen clogging with contaminants at 47000 miles causing turbocharger bearing failure destroying the turbine and compressor wheels along with compressor housing and exhaust manifolds. Possible engine damage. The vehicle operated while driving on highway. Sudden loss of power at highway speeds while failure occurred inducing loss of engine throttle control. Harsh surging of the engine occured. Once vehicle was pulled over to side of the highway. Engine was unable to maintain idle and unable to be driven.
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