2020 Audi S4: Is It Reliable?
Problems, Recalls & Buyer Verdict
Shopping for a used 2020 Audi S4? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Current data includes 16 complaints, with Electrical Faults as the top reported area.
2020 Audi S4 Fuel Economy
✓ EPA Official DataEPA official fuel economy rating for the 2020 Audi S4.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions.
2020 Audi S4 Safety Ratings
NHTSA 5-Star ProgramOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
Not Rated9.9% rollover risk
Frontal Crash
Not RatedSide Crash
Not RatedRollover
9.9% probability
Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
Based on NHTSA complaint data, the 2020 Audi S4 has 16 owner complaints, 0 crash-related complaints, and 3 recall campaigns on record. The most frequently reported component is Electrical Faults. NHTSA reliability signal: Good Record.
- Make
- Audi
- Model
- S4
- Model year
- 2020
- NHTSA owner complaints
- 16
- Crash-related complaints
- 0
- Safety recall campaigns
- 3
- Top reported component
- Electrical Faults
- Reliability signal
- Good Record
- EPA MPG combined
- 23
- EPA MPG city / highway
- 20 / 27
- Fuel type
- Premium Gasoline
- NHTSA rollover rating
- 5/5 stars
- Electronic stability control
- Standard
Most Common 2020 Audi S4 Problems
Top owner-reported complaint areas and where they often appear.
Electrical Faults
Back Over Prevention
Uncategorized Issues
Complaint patterns center on Electrical Faults, Back Over Prevention, Uncategorized Issues. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Should You Buy a Used 2020 Audi S4?
The 2020 Audi S4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car.
Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.
What to Check Before Buying a Used 2020 Audi S4
Inspection Focus
- Inspect the electrical system, including infotainment and sensors.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for electrical and back over prevention repairs.
- Have a mechanic inspect the vehicle's electrical components before purchase.
Before You Close the Deal
- Inspect the electrical system, including infotainment and sensors.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for electrical and back over prevention repairs.
- Have a mechanic inspect the vehicle's electrical components before purchase.
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2020 Audi S4, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
What the Complaint Data Suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Complaints for the 2020 Audi S4 are concentrated in electrical faults and back over prevention systems, though the total number of complaints is low. No crash-related complaints were reported. The data is limited by the small sample size and single model year analyzed.
- Electrical faults account for the majority of complaints (14 out of 16).
- Back over prevention issues are the second most reported component (9 complaints).
- No crash-related complaints were filed for the 2020 model year.
- Electrical faults are the most frequently reported issue.
- Back over prevention system problems are a recurring theme.
- Uncategorized issues also appear in several complaints.
All 2020 Audi S4 Complaints by Category
Every owner-reported complaint category filed with NHTSA for the 2020 Audi S4. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 14 | — | — | — | |
| Back Over Prevention | 9 | — | — | — | |
| Uncategorized Issues | 5 | — | — | — | |
| Lane Departure | 1 | — | — | — | |
| Forward Collision Avoidance: AEB | 1 | — | — | — | |
| Visibility/Wiper | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Real Owner Complaints
Read what owners actually reported to NHTSA for the 2020 Audi S4. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
My instrument cluster and its replacements have malfunctioned multiple times. The original instrument cluster/virtual cockpit failed to boot and had a black/blank screen on 4/19/2024 at 29,687 miles and was replaced on 5/15/2024 at 29,923 mi. That replacement one worked fine for …
The Audi MMI malfunctions and reboots randomly while driving. Possibly being a software issue. There is a TSB code that the dealer used to reference for me ( TSB 2078437/1), but I cannot find it on the NHTSA website. The reboot issue shuts off all functions associated with it, in…
The MMI reboots continuously throughout my drive - whether it is 1 minute or an hour. It does this without a Bluetooth connection or wired connection. There is no ability to use hands free calling, listen to the radio, use Apple car play, Bluetooth, navigation, back up camera, …
I am submitting a formal complaint regarding a persistent and dangerous issue with the MMI (Multi Media Interface) system in my 2020 Audi S4. Since February 2025, the system has been spontaneously rebooting both while the vehicle is idling and in motion. When this occurs, the sc…
The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume.
The vehicle software (known as Audi MMI) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot which is very distracting while driving. While backing out of a parking spot, t…
The MMI (multimedia interface) screen goes dead and reboots frequently (every 2-5 minutes) while driving. It is extremely frustrating and distracting. In addition, when the screen blacks out while driving in reverse, the backup camera, back up sensors and cross traffic warnin…
The Multimedia Interface (MMI) Touchscreen Radio will constantly reboot while driving regardless of variables. Diagnosis’ have proven problem to be undeterminable, this is a serious safety concern as I have lost back up camera and other safety features while driving, while I awai…
My Audi has been having an ongoing issue with the MMI rebooting while i am driving. It takes away my ability to see the maps and or hear the map telling me which direction to go. It has not been inspected yet however it is a common issue with the 2020 Audi cars that can be replic…
The main screen of the vehicle, which is called the MMI from what I understand, repeatedly shuts down and restarts while driving, up to 5 times or more per hour while driving. Sometimes this process can take 3 or more minutes. There appear to be hundreds of Audi customers that th…
The Audi MMI (Multi Media Interface) system plays a crucial role in enhancing safety features by providing a user-friendly interface for managing various driver assistance systems and safety-related functions. These include features like emergency calls, roadside assistance, and …
The MMI spontaneously reboots numerous times while driving. When the reboots happen, the screen goes black, and key systems such as the backup camera, rear obstacle detection, and navigation become unavailable until the reboot completes and the systems reload. Restoring functiona…
Audi MMI (infotainment) frequently resets during use of car. Spoke to tech at audi and they confirmed this is an issue on many 2020 audi A4 and S4 vehicles. The blind spot monitors, parking sensors, and backup cameras all disabled when this happens. It can happen at any time.
The primary infotainment/mmi screen randomly turns off and a system reboot occurs, which can take a period of time. This causes a loss of all parking sensors, rear view cameras, navigation etc. Dangerous when the system dies in the middle of a bustle parking lot or having to rest…
The MMI system is frequently rebooting at random moments while driving.
SOS module. Audi had a service for the known problem internally (Service Action 90T2) then stopped it apparently but many of us still experiencing issues that were not able to get the part corrected. SOS, GPS, Bluetooth, all hands free does not work. 6 months plus of waiting for …
Source: NHTSA Complaints Database. Real owner reports for the 2020 Audi S4.
2020 Audi S4 Recalls
3 campaignsNHTSA recall campaigns for the 2020 Audi S4. 3 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
2020 Audi S4 Buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2020 Audi S4 reliable?▾
Good Record. NHTSA currently shows 16 owner complaints, 0 crash-related complaints, and 3 recall campaigns for this model year. The 2020 Audi S4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2020 Audi S4?▾
#1: Electrical Faults (14 complaints). #2: Back Over Prevention (9 complaints). #3: Uncategorized Issues (5 complaints)
At what mileage do problems start on the 2020 Audi S4?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2020 Audi S4?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2020 Audi S4, NHTSA complaints include 0 crash-related reports and 0 fire reports out of 16 total complaints. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2020 Audi S4 have any recalls?▾
Yes. 3 NHTSA recall campaigns affect the 2020 Audi S4. A major recall area is TIRES. 3 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2020 Audi S4?▾
The 2020 Audi S4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Electrical Faults during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Audi S4 reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2020 Audi S4 based on your ownership experience.
Add your rating:
Ratings are based on owner experience and are separate from NHTSA data shown above.
Check the Exact Vehicle History Before You Buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.