Eight problems related to engine and engine cooling have been reported for the 2015 Audi A8. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Audi A8 based on all problems reported for the 2015 A8.
Yet another beautiful Audi 3. 0tfsi with the rocker arm failure … how is there not a class action lawsuit already ? I have a knock in my valve train and I just bought this car two days ago …. Audi should be liable to fix this because I didn’t know nothing about this and with a quick search it’s alike a epidemic of the same problem. .
The contact owns a 2015 Audi A8. The contact stated that while driving approximately 55 mph, the check engine warning light illuminated and the vehicle that stalled. The vehicle was towed to the dealer. The dealer diagnosed the vehicle and stated that the engine failed and needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 110,000.
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.
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.
Engine stalled as I approached departure terminal at newark airport. Dealer has inspected and determined the turbo impeller is bent and requires replacement. Car will not run. This is a known problem on Audi turbo engines apparently. Just prior to stalling the oil low light came on then the car stalled out creating a hazardous safety situation for a perfectly well maintained car.
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.
The stock turbo when right in the middle of traffic at 60,000 miles. Almost died in traffic as the car would not move out of the road. This is not exclusive to A8 but to all the Audi cars with the 4. 0t engine across many vehicle years. An oem turbo should last 150k-200k miles (half that if aftermarket). Cost $10k to replace.
After getting off the highway, the engine just quit. Fortunately we were at a stop sign at the end of the off-ramp. There was no warning and we were not able to restart the car to move it out of traffic nor could we shift into neutral. Had this happened a few minutes earlier, we would have been traveling at 70 mph. Fortunately, my son was driving, because at my age had this happened at highway speed, there is no way I could have steered it to safety without power steering. I know that this is not the first incident of this happening to this model car. It should be a safety recall before someone gets killed because of this problem. It's a shame that Audi is forcing its customers to cover the cost of this safety issue.