9.4

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,167 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Audi Q8 engine problems

engine problem

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2021 Audi Q8 Owner Comments

problem #3

Mar 112024

Q8

  • miles

A D V E R T I S E M E N T S

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 all functionality, including turn signals and emergency blinkers, posing a severe risk to my family and other motorists. We managed to coast to the roadside without incident, but the potential for a catastrophic outcome was alarmingly high. Audi has identified the problem as an alternator defect, which is apparently a known issue covered under an extended warranty for Audi Q8 2019-2022 for 7 years unlimited miles. However, the policy to address this defect only upon failure is unacceptable and dangerous. This malfunction could reoccur at any time, significantly endangering everyone on the road. Importantly, we frequently tow an Airstream trailer with our Q8. Had this failure occurred while towing, the consequences could have been disastrous on a large scale, endangering not only our family but also other road users due to the increased risk of a multi-vehicle collision, tipping over of Airstream or the Q8 if hit by vehicle who didn-??t The replacement part's minimum of 3-8+ weeks wait time exacerbates our concern, leaving us without a vehicle or ability to use our Airstream which is one reason why we purchased the Audi Q8. I am aware of similar incidents of this failure in SF Bay Area across the past 4-6 months, underscores the need for immediate investigation and action to prevent future occurrences. We frequently travel on challenging routes like [XXX] in California as we own a home in Santa Cruz highlight the urgent need for a reliable vehicle. The thought of such a failure under those circumstances on a routine drive home or while towing, is unthinkable but could have happened to us at anytime. We urge the NHTSA to investigate this matter thoroughly to ensure the safety of all Q8 drivers public. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

- Palo Alto, CA, USA

problem #2

Sep 212023

Q8

  • miles
Complete loss of electrical power while driving due to faulty alternator at only 35K miles. This resulted in total loss of steering, suspension failure, and any other electrical systems in the car. Making the car almost impossible to control specially for a new driver. Apparently the issue is widespread with any Audi car or SUV equipped with a V6 3 liter engine. The repair requires the replacement of the alternator and the 12v (an in some cases 48v) battery. The issue happens suddenly with no prior warning and completely disables the vehicle while driving. To the best of my knowledge Audi replaces the alternator with the same faulty design, which may lead to the issue to appear again at a later time.

- Rockville, MD, USA

problem #1

Sep 092021

Q8

  • 3,500 miles
The contact owns a 2021 Audi Q8. The contact stated while driving 70 MPH, the vehicle shutoff as the electrical problem, see local dealer warning message appeared on the instrument panel. The contact pulled off to the side of the highway and had the vehicle towed to a local dealer. The vehicle remained in the possession of the dealer and had yet to be diagnosed. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 3,500.

- Delray Beach, FL, USA

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