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Audi Q8 Engine Problems

61 owner complaints filed with NHTSA across 4 model years.

Complaints by Year

Worst year: 2019. Best year: 2024.

Owner Reports

A representative sample of complaints filed with NHTSA.

Engine · 2021 2

I was driving my car would not accelerate on the highway and it almost caused me to get into an accident with my niece in the car. When I took the car to Audi this is what I was told my the service adviser. “Good afternoon. The technic...

Engine · 2019 2

I own a 2019 Audi Q8. The vehicle was in the dealership’s possession for approximately three (3) weeks for service. During that time, I was not informed of any significant mechanical concerns or issues. After retrieving the vehicle, i...

Engine · 2019 2

Piston slap issues. The manufacturer is aware of the engine failure issues. They extended the engine warranty coverage from 50k to 80k miles knowing that the engine piston slap is an extreme issue but they won’t issue a total and compl...

Engine · 2020 2

Catastrophic engine failure on Audi Q8 3.0L turbo. Per service manager it a know issue and Audi just sent out a letter extending engine warranty to 80,000 miles. Per Audiworld forum Audi is replacing some engines and charging some owners...

Engine · 2021 2

The contact owns a 2021 Audi Q8. The contact stated that while driving at various speeds, the instrument panel failed to operate. The contact stated that while driving 70 MPH, the failure recurred. The contact received notification of N...

Engine · 2020 2

The vehicle is a 2020 model with less than 55k miles and experienced coolant leaks. Specifically, the water pump was faulty and leaked causing coolant liquid to leak in additional lines and gaskets. The repairs resulted into costs upward...

Engine · 2020 2

- The water pump failed, leading to a coolant leak and potential engine overheating. The failed component is not available for inspection, as it was replaced by an independent repair shop after the dealership quoted an excessive price an...

Engine · 2019 2

I was smelling fuel from my car so stopped to have it checked and was told there is a significant spray of fuel coming from the fuel rail and hitting the electrical wires. I was told that it could go on fire at anytime and the car cannot...

Engine · 2019 2

The alternator failed causing the vehicle to shutdown in the middle of traffic. I was on a surface road not the highway so I was able to get local police to assist. When it failed there was no car electrical system function, so I could ...

Engine · 2019 2

I was driving home from work when all of a sudden I got error messages: Electrical system malfunction! Please contact service; Start/ stop system: malfunction! Function unavailable. Please contact Service, yellow battery light and the c...

Engine · 2021 2

I wish to report a critical safety issue with our Audi Q8, which experienced a complete electrical failure while traveling at 65 mph on the freeway on [XXX]. The warning indicators transitioned from yellow to red before the vehicle lost ...

Engine · 2020 2

The contact owns a 2020 Audi Q8. The contact stated that the vehicle was consuming an excessive amount of engine oil. The contact stated that the oil needed to be topped off frequently. The Check Oil warning light was illuminated and rem...

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