Before you buy
This 2021 Audi A6 Allroad has 24 NHTSA complaints — top issue: Electrical Faults.
A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.
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2021 Audi A6 Allroad Fuel Economy
✓ EPA Official DataEPA official fuel economy rating for the 2021 Audi A6 Allroad.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions.
2021 Audi A6 Allroad 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
8.9% rollover risk
Frontal Crash
Side Crash
Rollover
8.9% probability
Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
AUDI A6 ALLROAD 2021 has 24 NHTSA complaints and 8 recalls. Electrical faults lead with 13 complaints, followed by engine problems (4) and AEB issues (4). No crash complaints were reported. Source: NHTSA owner complaints and recall records.
- Make
- Audi
- Model
- A6 Allroad
- Model year
- 2021
- NHTSA owner complaints
- 24
- Crash-related complaints
- 0
- Safety recall campaigns
- 8
- Top reported component
- Electrical Faults
- Reliability signal
- Good Record
- EPA MPG combined
- 22
- EPA MPG city / highway
- 20 / 26
- Fuel type
- Premium Gasoline
- NHTSA overall safety rating
- 5/5 stars
- NHTSA frontal crash rating
- 4/5 stars
- NHTSA side crash rating
- 5/5 stars
- NHTSA rollover rating
- 5/5 stars
- Electronic stability control
- Standard
Common problems
Most common 2021 Audi A6 Allroad problems
Top owner-reported complaint areas and where they often appear.
Electrical Faults
Engine Problems
Forward Collision Avoidance: AEB
Complaint patterns center on Electrical Faults, Engine Problems, Forward Collision Avoidance: AEB. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Buyer verdict
Should you buy a used 2021 Audi A6 Allroad?
The 2021 Audi A6 Allroad has notable electrical and engine complaints, but no crash reports. It may be worth considering if you can verify recall repairs and inspect the electrical system, but proceed with caution due to low data confidence.
Electrical faults can cause unpredictable failures, and engine problems may lead to costly repairs. These patterns directly affect reliability and ownership costs.
May Suit
This year may suit buyers who prioritize luxury and performance and are willing to perform thorough pre-purchase inspections.
May Want to Avoid
Buyers seeking maximum reliability and minimal service visits should avoid this year due to elevated complaint counts.
Pre-purchase
What to check before buying a used 2021 Audi A6 Allroad
Inspection Focus
- Inspect electrical system for warning lights and intermittent failures.
- Check engine for unusual noises or performance issues.
- Verify AEB system operation and recall status.
Before You Close the Deal
- Check for open recalls at nhtsa.gov/recalls and confirm repairs.
- Request service records for electrical and engine repairs.
- Have a mechanic inspect the electrical system and engine thoroughly.
- Test drive to check AEB and transmission behavior.
Check the exact car
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2021 Audi A6 Allroad, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
AI verdict
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
Based on NHTSA complaint data, the 2021 Audi A6 Allroad shows a high rate of electrical faults (13 complaints) and engine problems (4 complaints). With 8 recalls and no crash-related complaints, buyers should prioritize checking recall completion and electrical system health. Source: NHTSA owner complaints and recall records.
Year context: Compared to other model years, 2021 has a high complaint count (24) and recall count (8), but data confidence is low, limiting direct comparisons.
Recall context: With 8 recalls, it is critical to verify all recall repairs have been completed before purchase.
- Electrical faults account for 13 of 24 total complaints.
- Engine problems total 4 complaints.
- Forward collision avoidance (AEB) has 4 complaints.
- Electrical Faults (13 complaints)
- Engine Problems (4 complaints)
- Forward Collision Avoidance: AEB (4 complaints)
Full breakdown
All 2021 Audi A6 Allroad complaints by category
Every owner-reported complaint category filed with NHTSA for the 2021 Audi A6 Allroad. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 13 | — | — | — | |
| Engine Problems | 4 | — | — | — | |
| Forward Collision Avoidance: AEB | 4 | — | — | — | |
| Transmission / Drivetrain | 3 | — | — | — | |
| Uncategorized Issues | 2 | — | — | — | |
| Fuel/Propulsion System | 2 | — | — | — | |
| Structural Problems | 2 | — | — | — | |
| Steering Defects | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
In their words
Real owner complaints
Read what owners actually reported to NHTSA for the 2021 Audi A6 Allroad. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
My 2021 Audi A6 produces a strong mold and mildew odor from the HVAC/air conditioning system. The smell occurs consistently after the air conditioning is turned off and persists when entering the vehicle. The issue appears to originate from mold growth on the evaporator coil or d…
The contact owns a 2021 Audi A6. The contact stated while driving at an undisclosed speed, the vehicle overheated. The engine overheating and the low coolant warning light illuminated. In addition, the engine seized. The vehicle was taken to the dealer where it was diagnosed with…
Thermostat housing and oil cooler bracket leaking coolant with only 56k miles on the car
I was driving my vehicle when the engine surged and then a transmission warning light came on and there was an immediate and complete loss of drive power. After the vehicle glided to a stop, there was no drive transmission in either forward or reverse. There was no pre-warning …
My vehicle was excluded from Recall 25V20100/90VC; however, in early March 2025, it experienced the exact defect described in that recall: a complete failure of the instrument panel module. I paid $3,737.07 for the repair just weeks before the official recall began in late March …
My alternator was not working and it was a recall and I paid to fix it and they don’t wanna pay me back. I got a new part from audi and fix it at the shop and they don’t wanna pay anything just called and she said we don’t pay only if he’s done at the dealer. And I don’t believe …
While driving at normal speed, the entire digital instrument panel suddenly went black and a red warning triangle appeared. I lost all gauges, including speedometer, fuel level, and warning indicators. This created a serious safety risk because I was in active traffic and had no …
The car has traffic sign recognition and uses it for "predictive control" where the vehicle will read traffic signs and adjust the adaptive cruise control setting to based on road signs. It had previously been working well but a software update was recently performed under TSB 20…
The Audi Pre-sense is activated by weather. I was driving during a thunderstorm and Audi Presence activated causing the car to come to a hard stop due to precipitation. It happened again backing out of my driveway the Audi Pre-sense was activated and the car came to a hard stop. …
The Virtual Cockpit of the car (electronic screen right in front of the driver that displays speed, etc.) randomly turns off during driving, reboots, and displays an error message "Instrument Cluster Malfunction". A loud tone then chimes. This malfunction, while brief, is a safet…
The car has had multiple issues with warning lights and malfunctioning systems. Including : 1.Child locks 2.Every single component of the ADAS 3. Emergency services being activated at least a few times a month - this is an SOS for emergency 911 service. The repeated, continuo…
Vehicle had electrical system malfunction. Vehicle provided an electrical system malfunction and vehicle starting system malfunction warning message a few days prior to the incident. Vehicle has approximately 20.5K miles on odometer. Before I was able to bring it to service, the …
Notice of electronic failure on dash, then car notified me to pull over safely due to the failure after 20 min of driving. Car stopped shifting gears and electronic power steering failed while the vehicle was moving. Difficult to maneuver the car to safety once the Safely Pull Ov…
Car reported an engine restarter issue (with battery symbol) and recommended to contact the dealer. Car next shut down automatic restart system, and air conditioning stopped working. Within a short period of time (same day), the car listed a red battery symbol and advised to stop…
The contact owns a 2021 Audi A6. The contact stated while his father was driving 45 MPH, the electrical system Malfunction warning light illuminated. The contact stated that several electronic components started to turn off until the vehicle stalled. The vehicle was not drivable.…
At a highway speed of 50 MPH the transmission completely disengaged. I was driving on a busy highway with no shoulder. The vehicle continued to coast until I was forced to stop in an unsafe location. I placed the car in park, then in drive, and it was still disengaged. I need…
The contact's wife owns a 2021 Audi A6. The contact received notification of NHTSA Campaign Number: 22V155000 (Electrical System) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the r…
Multiple warnings indicating to contact dealer (Lane departure, adaptive cruise control, collision avoidance, electrical system, start/stop, etc) then 1 minute later transmission failure and engine failure imminent. After a minute or two my center MMI went blank then my electroni…
Audi has failed to come up with a repair for recall 22V742. My car consistently shows 1/4 tank of fuel when it’s actually near zero.
Sunroof spontaneously shattered while driving. No other cars around when this occurred. Caused a very loud BANG. Was driving on the freeway when this occurred. Dealer would not confirm issue was spontaneous - felt something must have hit the car to cause this. No defined imp…
Source: NHTSA Complaints Database. Real owner reports for the 2021 Audi A6 Allroad.
Safety recalls
2021 Audi A6 Allroad recalls
8 campaignsNHTSA recall campaigns for the 2021 Audi A6 Allroad. With 8 recalls, it is critical to verify all recall repairs have been completed before purchase. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
SEAT BELTS:REAR/OTHER:RETRACTOR
TIRES
AIR BAGS
EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT
ELECTRICAL SYSTEM
SERVICE BRAKES, HYDRAULIC:FLUID
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Research more
Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Questions
2021 Audi A6 Allroad buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2021 Audi A6 Allroad reliable?▾
Good Record. NHTSA currently shows 24 owner complaints, 0 crash-related complaints, and 8 recall campaigns for this model year. The 2021 Audi A6 Allroad has notable electrical and engine complaints, but no crash reports. It may be worth considering if you can verify recall repairs and inspect the electrical system, but proceed with caution due to low data confidence. 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 2021 Audi A6 Allroad?▾
#1: Electrical Faults (13 complaints). #2: Engine Problems (4 complaints). #3: Forward Collision Avoidance: AEB (4 complaints)
At what mileage do problems start on the 2021 Audi A6 Allroad?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2021 Audi A6 Allroad?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2021 Audi A6 Allroad, NHTSA complaints include 0 crash-related reports and 0 fire reports out of 24 total complaints. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2021 Audi A6 Allroad have any recalls?▾
Yes. 8 NHTSA recall campaigns affect the 2021 Audi A6 Allroad. A major recall area is SEAT BELTS:REAR/OTHER:RETRACTOR. With 8 recalls, it is critical to verify all recall repairs have been completed before purchase. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2021 Audi A6 Allroad?▾
The 2021 Audi A6 Allroad has notable electrical and engine complaints, but no crash reports. It may be worth considering if you can verify recall repairs and inspect the electrical system, but proceed with caution due to low data confidence. Electrical faults can cause unpredictable failures, and engine problems may lead to costly repairs. These patterns directly affect reliability and ownership costs. 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 A6 Allroad reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2021 Audi A6 Allroad based on your ownership experience.
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Ratings are based on owner experience and are separate from NHTSA data shown above.
Before you buy
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.