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. I had to have the vehicle towed to Audi of Riverside for diagnosis and repair. The dealership confirmed the issue was related to Recall 22V861 (Gateway Control Module). I was never notified by Audi of this open safety recall prior to the incident. The problem was immediately confirmed by the dealership, and the vehicle has been in the shop since September 2024 — now over eight months — with no ETA on parts from Audi and no resolution. During this time, Audi has not provided a loaner vehicle or rental support. I’ve continued to pay my monthly car note for a car I cannot use and have spent hundreds of dollars per month on Uber and alternate transportation to get to work. Audi issued a $3,000 goodwill check, but that does not begin to cover my actual out-of-pocket costs. I also previously requested a vehicle buyback, which was denied. This is a serious safety defect that caused a dangerous on-road failure, and the manufacturer has failed to provide a timely or adequate remedy. The issue has been confirmed by the dealership, and the vehicle is still not repaired or returned to me. I’m requesting immediate investigation and enforcement regarding this unresolved recall and the unreasonable delay in resolution.
The worst 2020 Audi S6 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Electrical2
- Engine1
- Transmission1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical2
- Engine1
- Transmission1
Recalls 6
Back over prevention: sensing system: camera
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
- Risk
- A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
- Remedy
- Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on December 23, 2025.
Recall number 25V900000 · Recall details
Electrical system
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
- Risk
- A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
- Remedy
- Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1‑800‑253‑2834. Audi's number for this recall is 90V2.
Recall number 22V861000 · Recall details
Electrical system: instrument panel: fuel gauge: fuel level float/sensor/sending unit
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
- Risk
- An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.
- Remedy
- Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 20DN.
Recall number 22V155000 · Recall details
Tires
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V‑295 (42L1) were performed.
- Risk
- Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
- Remedy
- Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 42L5.
Recall number 22V034000 · Recall details
Suspension: rear: axle: non-powered axle assembly
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
- Risk
- A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
- Remedy
- Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 42L1.
Recall number 21V295000 · Recall details
Air bags
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.
- Risk
- An incorrectly manufactured air bag may not deploy properly, and could also eject plastic debris into the passenger compartment, increasing the risk of injury during a crash.
- Remedy
- Audi will notify owners, and dealers will inspect the passenger air bag score line, and repair it as necessary, free of charge. The recall begin March 26, 2021. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 70i2.
Recall number 21V159000 · Recall details
Technical service bulletins for the 2020 Audi S6 1,071
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin provides informaiton on the use of the PICO-NVH tool (VAS 611 015).
- This bulletin provides information when the air spring symbol is illuminated; DTC U112100 or C1260F0.
- This bulletin provides information regarding the current top concerns being addressed by the Audi Digital...
- This bulletin proides service information when there is a prompt to take over the steering wheel (hands...
- This bulletin provides information when the starter battery is discharged or malfunctioning.
- This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake...
- This bulletin provides information when therea re functional issues with the connectivity box (low).
- This bulletin provides information to aid in diagnosing the vehicle locking system.
- This bulletin provides information when the engine is not runing smoothly; all gas engines.
- This bulletin provides information on VIN plates, Safety Certification labels, and ordering procedures.
2020 Audi S6 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.9L 6‑cyl Hybrid | AWD | 18 | 28 | 22 |
What 2020 Audi S6 owners say
Most recent owner complaints, unedited.
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. As of March 2025, there is no estimated time of arrival for the part, and Audi has not provided any alternative resolution. This recall renders the car inoperable, posing a serious financial and safety concern.
Compare the 2020 Audi S6
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Questions about the 2020 Audi S6
Is the 2020 Audi S6 reliable?
Owners have filed 2 complaints about the 2020 Audi S6, fewer than a typical S6 model year.
What is the most common problem with the 2020 Audi S6?
Electrical system, with 2 complaints. Next is engine (1).
How many recalls does the 2020 Audi S6 have?
6 recalls, covering back over prevention, electrical system and tires.
What gas mileage does the 2020 Audi S6 get?
Official estimates for the 2020 Audi S6 range from 22 mpg combined. The most efficient version (2.9L 6-cyl hybrid, AWD) gets 18 city and 28 highway.
VIN decoder
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