AI Damage2019 Audi A6: common problems
Owners of the 2019 Audi A6 filed 114 complaints with NHTSA, most often about electrical system and engine. The maker issued 1,248 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 114
- involving a crash
- 2
- Technical service bulletins (TSB)
- 1,248
What fails most often
- 1 Electrical system 74% of all complaints
- 2 Engine 28% of all complaints
- 3 Powertrain 13% of all complaints
- 4 Steering 11% of all complaints
- 5 Forward collision avoidance 10% of all complaints
- 6 Service brakes 5% of all complaints
- 7 Lane departure 4% of all complaints
- 8 Structure 3% of all complaints
- Electrical system: 84 complaints (74% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 394.
- Engine: 32 complaints (28% of all), 2 of them with a crash reported by the owner; manufacturer bulletins for this component: 57.
- Powertrain: 15 complaints (13% of all); manufacturer bulletins for this component: 63.
- Steering: 12 complaints (11% of all); manufacturer bulletins for this component: 68.
- Forward collision avoidance: 11 complaints (10% of all); manufacturer bulletins for this component: 13.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · hybrid · turbo · 4 cylnamed in 1 complaints
- 3 L · hybrid · turbo · 6 cylnamed in 2 complaints
- dual-clutch (DCT), 7-speed
Drive: AWD
Symptoms owners describe
How many of the 114 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 84 | 1 | 394 |
| Engine | 32 | 2 | 57 |
| Powertrain | 15 | 0 | 63 |
| Steering | 12 | 0 | 68 |
| Forward collision avoidance | 11 | 0 | 13 |
| Service brakes | 6 | 0 | 42 |
| Lane departure | 5 | 0 | 8 |
| Structure | 3 | 1 | 101 |
| Exterior lighting | 3 | 0 | 24 |
| Backover prevention | 2 | 0 | 11 |
| Fuel/propulsion system | 2 | 0 | 9 |
| Tires | 2 | 0 | 6 |
| Visibility | 1 | 0 | 40 |
| Air bags | 1 | 1 | 15 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Stop engine oil pressure too high light comes on dealer does not have solution. Engine could blow during operation and cause accident. Vehicle recall needed
This defect poses a severe safety risk as coolant entering the vacuum grid can cause sudden loss of engine power, erratic braking assist, and localized engine overheating while operating the vehicle at highway speeds.
My 2019 Audi A6 was diagnosed with catastrophic internal engine failure on May 9, 2026 at [dealer], Newton, NJ, at 93,645 miles. The vehicle required a full engine rebuild performed by REV Auto NJ at a cost of $12,000.
Leaking coolant will cause an overheated engine and possible FAILURE of the (EA839)engine and even the turbocharger . Today I did some online research line research and discovered a class action lawsuit involving their 1.8 & 2.0 engine water pumps which failed prematurely for the same reason.
The central locking / electronic door lock system on my 2019 Audi A6 intermittently malfunctions, sometimes with a long beep sound and an error message appearing on the screen in front of my steering wheel. The affected system is available for inspection upon request.
Shortly after purchasing in 2025 I began having occasional issues with the door locks. Eventually the issue would self resolve but now I have experienced at least 2 times in last month being locked inside the vehicle and unable to exit without climbing into the passenger seat.
The dealer inspected the vehicle and advised that the repair would require replacement of the rear door latch/actuator but declined coverage due to the vehicle being out of warranty.
255/40/R20 Tires thread separated Tires were purchased 10/14/2021 [dealer]
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 519 of 2,102 model years in the NHTSA data (top 25% most complained about).
On average one model year of the A6 has 19 complaints (12 years in the data). This year has 114, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin states that technicians are required to report to the manufacturer when a vehicle has…
This bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
- This bulletin provides information when the starter/generator drive belt is noisy or came off
- This bulletin provides information when there is an abnormal knocking noise from the engine compartment;…
- This bulletin provides information regarding fault finding and repair information for electric tailgate
- This bulletin provides information about billing for a broken sunroof glass panel
- This bulletin provides information about vibrations and rotational steering vibrations
- This bulletin provides general information about SOS Emergency Assist
- This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases
- This bulletin provides information when the rear parking sensor sometimes does not work, rear parking…
This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
- This bulletin provides informaiton when DTC B200FF0 is stored
- This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar…
This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change assist are inoperable.
- This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake…
NHTSA lists 1,248 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2019 Audi A6?
Owner complaints to NHTSA most often mention: electrical system, engine, powertrain. Total complaints: 114. The most frequent symptoms in complaint texts: warning lights, check engine (20%), driver assists: adaptive cruise, lane keeping (12%), steering or power steering problems (11%).
How many service bulletins (TSB) were issued for the 2019 Audi A6?
NHTSA lists 1,248 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2019 Audi A6 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2019 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.