AI Damage2020 Audi S6: common problems
Owners of the 2020 Audi S6 filed 2 complaints with NHTSA, most often about electrical system and powertrain. The maker issued 1,027 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 1,027
What fails most often
- 1 Electrical system 100% of all complaints
- 2 Powertrain 50% of all complaints
- 3 Engine 50% of all complaints
- Electrical system: 2 complaints (100% of all); manufacturer bulletins for this component: 340.
- Powertrain: 1 complaints (50% of all); manufacturer bulletins for this component: 39.
- Engine: 1 complaints (50% of all); manufacturer bulletins for this component: 32.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2.9 L · hybrid · turbo · 6 cyl
- automatic, 8-speed
Drive: AWD
Symptoms owners describe
How many of the 2 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 | 2 | 0 | 340 |
| Powertrain | 1 | 0 | 39 |
| Engine | 1 | 0 | 32 |
| Equipment | 0 | 0 | 219 |
| Structure | 0 | 0 | 90 |
| Steering | 0 | 0 | 57 |
| Engine and cooling | 0 | 0 | 50 |
| Service brakes | 0 | 0 | 41 |
| Visibility | 0 | 0 | 39 |
| Suspension | 0 | 0 | 37 |
| Exterior lighting | 0 | 0 | 17 |
| Air bags | 0 | 0 | 13 |
| Fuel/propulsion system | 0 | 0 | 13 |
| Wheels | 0 | 0 | 13 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While driving my 2020 Audi S6, the vehicle suddenly lost power and completely shut off in the middle of the road without warning. There were no warning lights or messages beforehand. I was unable to accelerate or steer out of the way, which created a major crash risk for myself and other drivers.
My 2020 Audi S6 has been undriveable since September 27, 2024 due to a backordered recall part (Gateway Control Module). Audi has failed to provide a repair timeframe, making my car unusable for over five months. Audi has refused to provide a loaner vehicle despite the long delay.
Comparison
By complaint count this model year ranks 1,862 of 2,102 model years in the NHTSA data (among the 11% least complained about).
On average one model year of the S6 has 3 complaints (11 years in the data). This year has 2, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
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 there is a warning message in the instrument cluster about…
- 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…
- This bulletin provides information when there is an Audi adaptive light system malfunction; DTC C12B3FA is…
This bulletin provides information when there is an Audi adaptive light system malfunction; DTC C12B3FA is stored in the control module for driver assistance systems.
NHTSA lists 1,027 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 2020 Audi S6?
Owner complaints to NHTSA most often mention: electrical system, powertrain, engine. Total complaints: 2. The most frequent symptoms in complaint texts: loss of power / limp mode (50%), warning lights, check engine (50%).
How many service bulletins (TSB) were issued for the 2020 Audi S6?
NHTSA lists 1,027 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 2020 Audi S6 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 2020 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.