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What 6 owners told NHTSA about the 2017 Audi A8 Lwb

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (6)Crash / fire / injury (1)Brakes (2)Speed control (2)Driver assistance (1)Engine (1)Fuel system (1)Tires (1)Transmission & drivetrain (1)

Newest first · 6 complaints

May 20, 2024Speed controlBrakes

The contact owns a 2017 Audi A8. The contact stated that while using the cruise control, the warnings ACC (Adaptive Cruise Control) and Brake Guard disabled was display on the instrument panel. The vehicle had been taken to the dealer where it was diagnosed that the camera had failed and needed to be replaced. The contact stated the dealer originally agreed to repair the vehicle; however, the dealer had since denied providing the repair free of charge. The vehicle had not been repaired. The manufacturer was made aware of the failure. The failure mileage was 51,000.

NHTSA ODI 11589589

May 18, 2024Speed controlBrakesDriver assistance

Bought a 2017 audi A8l with 51700 miles, from Mike erdman Nissan in coco beach florida, it had front grill damage and when you try to use the cruise control message comes on dash ACC and brake guard disabled, i told dealership they first said theyd fix it but i had to talk to the lender first then theyd fix i talked to the lender now they are refusing to fix it, i never signed anything saying no warranty, nothing was never said about warranty, but was told but eric the salesman that he was going yo have it fixed

NHTSA ODI 11589469

Jan 5, 2024Tires

My wife and I were traveling [XXX] west on Atchafalaya Basin from New Orleans to Lafayette, a light came on saying inferior tire check air [pressure. Next thing we were on a flat tire on side of busy unsafe area of the interstate. Call 911 to request police for safety with traffic while changing the tire. Officer assist with removal of tire, and said he's never seen a tire with that kind of damage. Inside wall of the tire was completely gone. I purchased a new tire $312. I'm concerned about it happening with the other tires. My wife doesn't feel safe riding in her car since. I read some of the other concerns from people who had similar problems with Pirelli tires. I would appreciate it if someone could research these tires and reimburse me It was a scary situation because of the location. Thank you for your cooperation in this matter! Looking forward to hearing back from you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11563797

Sep 6, 2023Fuel system

Gas leaks smells from engine bay previous years have this problem and have recalls...

NHTSA ODI 11542822

Aug 15, 2022

A plastic guide piece which holds the passenger side of the panoramic sunroof (rear, above backseat) retractable sunshade continuously breaks on its own with limited infrequent use by control switch. I had it replaced by the dealer, which is expensive. Its my opinion this is a design flaw, or cheap plastic oem issue.

NHTSA ODI 11479275

Feb 11, 2022Transmission & drivetrainEngineCrash

The 2017 A8L 4.0T is equipped with a engine Start-Stop system that switches off the engine when the car is motionless, to save fuel. The system is supposed to restart the engine immediately when the brake is released. This system malfunctions routinely and refuses to restart, leaving me with an immobile car at stoplights and intersections, putting me and my family at risk. This safety hazard has caused two accidents. In the first incident, I parked in my spot and got out of the car. The Audi rolled backward and collided with the car parked behind (insurance claim filed). In the other incident, I was stopped at an intersection, at an incline. The car failed to restart when I took my foot off the brake and rolled back, colliding with the truck behind me. My rear bumper was damaged, truck was not damaged. The car was inspected multiple times, and problem was reproduced by the Audi dealer. They attempted fixes, but failed to solve the problem. No warning lights or message appeared to alert me to this start-stop system failure.

NHTSA ODI 11451619

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2017 Audi A8 Lwb verdict →