Audi A8 loss of power problems

Filed Jun 18, 2025 · Engine · MD

Driving up an inclined road at night. Car engine started to sputter and jerk and lost power. Was able to get to the side of the road out of traffic at the top of the hill? I was able to coast down the hill to a gas station. Carl would not drive without Jerking or accelerate, add check engine, light on and flashing. With the smell of burning from the engine, compartment waited two hours for a tow truck towed it home, the following day, I had to take off of work. I checked all the spark plugs to find multiple spark plugs completely soaked in oil, took an Uber to parts store to buy new spark plugs. At this point I had found out about the recall for the same problem. On the same engine. In all of audi's cars, except for the A8 line was excluded, do not know the reason why it's the same engine in multiple vehicles that were listed in the recall for the piston rings. My other Audi a 6 has over 200000 miles and does not have this issue. Get these low tension piston ring failures that have been recalled. On the issue with all of audi's in this year

Filed Aug 22, 2024 · Engine, Fuel system · MD

Audi, A8L 2013, also has the stuck piston. Rings end oil blow by like the other Volkswagen, defected engines of the same year yesterday while driving my car ended up stalling on a road with traffic behind me going up a hill because too much oil I'd burnt in the cylinders, causing the spark plugs to become completely coated in oil and the cars. Electronic system registered multiple misfires, multiple cylinders. Are misfired and multiple other safety epc codes, causing the vehicle to not be able to drive more than 5 miles an hour, stuttering. Which also caused the engine to almost stall, losing power steering. If this was on the highway this could have been exceptionally bad. I request the Audi AH. L and 8 series to be added to the current recall. For the A6Q5A4 A seven with the exact same problem

Filed Nov 26, 2022 · Electrical · NY

Start system malfunction causes the car to randomly lose ALL power and roll back when at a stopped, causing the car to be disabled and unable to start again. Faults indicate a failure of the 48V belt driven starter generator. Parts to repair defect are severely back ordered, taking months to obtain.

Filed Feb 13, 2022 · Engine · NY

With out any prior warning the car began to sputter and then lost power while I was on the highway. I had the vehicle towed to the dealership and found the Turbos failed which caused the problem. This car has been well maintained and serviced by the dealership. It now has a $14000.00 repair bill.

Filed Feb 1, 2022 · Engine · IL

Turbo chargers failed on highway at highway speeds leading major loss of power in a passing situation nearly causing an accident then the car stalled at exit ramp

Filed Dec 6, 2021 · KY

While traveling on Interstate 65 through Nashville, TN my 2013 Audi A8L showed an EPC light alert then <5 miles later while traveling through interstate split going 20mph the car without alert shut down and I lost power steering, brake control, accelerator control, electric control and was forced to navigate hazardously across 3 lanes of traffic to a modified left side median. I had large vehicle traffic dodging my car going 50-60mph and was forced to call 911. I stayed in the car because much too dangerous to leave the vehicle and was able for a brief minute to restart and get off an exit ramp where it abruptly died again. I had the car towed to Audi dealership where diagnosis showed dual turbocharger failure and they recommended replacement. * Catastrophic turbo charger failure - it is available for inpsection * Car catastrophically shut down going 15-30 mph on interstate in downtown nashville causing loss of power steering/brake control. This led to immediate danger and harm caused by loss of vehicle control and traffic collision risk * Yes - dealer confirmed in multiple locations (Nashville and Louisville of turbocharger failure * No * The car EPC light came on <5 miles prior to shutdown I understand that the federal safety agency already has an investigation into this model and year audi regarding turbocharger failure and I would like to add that I have had a similar problem with this vehicle. It should be recalled to address these safety concerns

Filed Jul 29, 2021 · Engine · GA

The car start chugging and lost power while driving. My safety and the safety of other drivers were at risk, because the vehicle stalled immediately. This issue happened while exiting off the highway. The vehicle was inspected by an Audi dealer and the issue reported was Turbo Charger issue. There were no warnings prior to the failure.

Filed May 25, 2021 · Brakes, Steering · NH

Driving home from church, heard a rattle, like a stick was stuck underneath. Then felt loss of power. No warning/engine check light, but car stalled while I was turning left off a highway. When car stalled I had no warning, and no steering or brakes. Husband was able to assist with getting care off road and out of oncoming traffic. We were worried about being able to avoid pedestrians at the corner as we had NO control and they did not seem to be aware of the emergency. Looked online and saw lots of similar stories. Exactly like what happened to us. Mechanic says turbo chargers failed. One is sheered off and one is rubbed/failing. Audi quoted us $14,000 to repair. Car is at 80,700 miles which seems to be 700 miles out of warrantee. All service work has been done by Audi and recorded. Audi is unwilling to help with this issue. This has to be the most scary incident driving I have ever had. It was shocking that there was no warning. And I lost both steering and braking assist while crossing a travel lane and making a turn. It appears that Audi is aware that they have filter/check valve issues for the turbo charger oil supply. They have since upgraded these parts but have failed to replace the faulty parts when cars like ours go in for service. They have also failed to warn people of this potential hazard. We have called Audi Corporate and they say there is nothing they can do to help.

Filed May 16, 2021 · Engine · IL

Car stalled in left turn lane. Restarted with difficulty, and loss of power. No warning lights. Diagnosed by dealer to be failed twin turbochargers. 45688 miles. Replaced under extended warranty. Dangerous as car stalled in an intersection with no prior warning.

Filed Feb 24, 2021 · Engine · 48,000 miles · MA

Engine shut down at highway speed ~65mph while decelerating into toll booth our to turbo failure. Complete engine shut down. Lost power in highway traffic. Dangerously navigated through ezpass lane without power. Hazards on. Dangerously navigated to shoulder, coasting, with no engine power. Came to complete stop on shoulder. Was able to restart motor and drove directly to audi dealership. Dealership confirmed known turbo failure problem on vehicle model. This is a potentially deadly condition and needs to be federally addressed. Audi has a 2015 supplement to emissions warranty identifying the turbo failures and there is a federal statue to extent this correction to 7yr 70k miles. Regardless, it should be a safety recall.