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EnginePart report

2019 Audi A8 Engine Problems

Complaints
4about this part
Share
29%of 14 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine of the 2019 Audi A8, 29% of the 14 complaints for this model year. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Message appeared on display Jan 7 2023: Electrical system: Malfunction! Please contact service The trunk lid opened while I was driving, the a/c quit (I am in Key West!), the auto start/stop quit. I had heard of many other Audi owners whose car just quit, so I scooted home and parked. I had it towed to Coral Gables FL at my expense, and the dealer told me it was an alternator problem that needed to be replaced. None available in the US, could be months before it's repaired. Car is 2019 Audi A8 with 42,000 miles.”

NHTSA complaint #11502629, filed 2023-01

“Complete Engine Failure - Audible Engine Knock Noise. Bank 2 Knock Sensor Faults stored & recorded at Audi of Hoffman Estates. Worked with Audi Of Amercia where they denied any wrongdoing or know issues. Bore socped engine at an independent shop & confirmed the cyclinder 6 bore was scored due to picton failure. Paid for a USED engine replacement & install out of my pocket on 8/5/2025 $4,655.57 Install Charge $6,760.49 Used Engine Cost On 9/8/2025 I recieved a letter in the mail from Auid Of America Outling a Piston Skirt Limited Warranty Extension. …”

NHTSA complaint #11693878, filed 2025-10

“I own a 2019 Audi A8 with 2000 miles on it. This nearly has caused me accidents and other Audi A8 owners are also voicing complaints. The dealer is aware of it but said Audi engineers will not address it. After coming to a stop, upon pressing the accelerator the vehicles does not respond for three or four seconds and then abruptly takes off. There is a major hesitation and can be dangerous if you are pulling out in an intersection with traffic approaching. After the 3-4 second delay, it then dangerously speeds ahead. This has nothing to do with the on/off switch as it happens in all settings. …”

NHTSA complaint #11352660, filed 2020-09

“Vehicle engine would suddenly stop working, warning, drive system malfunction: stop vehicle safely. It has happened 3 times within 3 days in the middle of the intersection. Dealers wouldn't take this issue seriously and they asked me to make an appointment online, which is scheduled to be 1 month away. The issue almost caused an accident twice. Adaptive cruise is also malfunctioning, engine random misfire, sunroof rattle, etc. This car is just so problematic it only has 20,000 miles on it and had scheduled maintenance performed just a month back.”

NHTSA complaint #11452496, filed 2022-02

Related recalls

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2021120%
2019429%
2017225%
2016545%
20151755%
20141267%
20133672%
2012436%
20111067%
2008113%

Other parts of the 2019 Audi A8

Electrical system
8 complaints
Other or unknown
4 complaints
Forward collision avoidance
2 complaints
Lane departure
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2019 Audi A8

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology