Owners have filed 20 complaints on the Audi A6 allroad, covering 2020–2026. The system named most often is Electrical System (8 reports). Worst years by volume: 2021, 2020, 2026; cleanest: 2025, 2026, 2020. On average the car was 2.3 years old when the problem happened.
What breaks on Audi A6 allroad
Grouped by the system owners named — percentages are shares of all 20 A6 allroad complaints. Open any row for the full reports in owners' own words.
Electrical System 8 Read
The car's fuel guage has been inaccurate since the initial purchase. It would always hang at around 50% and then drop to 5% within 10 miles. Thankfully, we are aware and just check the miles driven so we do not get stranded. Requested fix by dealership, they said there was nothing wrong. The recall for my car appeared…
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 2025. I submitted a reimbursement claim…
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 safety issue due to the lack of speed…
Power Train 4 Read
Was told that the rear differential was defective and needed to be replaced. After this rear differential was replaced, it still is not fixed. The problem was confirmed by the dealer. The vehicle has been inspected by the dealership and the manufacturer. No messages or warning lamps were activated. Symptoms of…
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 needed to turn the car off, turn it on and it…
Dashboard error messages, "Electrical System Malfunction! Please contact service" and "Vehicle Starting System: Malfunction! Please contact service". Dealer replied that it is a starter generator. Unsafe to drive, towed to dealer service. Part has been on order for more than three weeks
Forward Collision Avoidance 2 Read
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 2074688/3 on November 6th, 2025 and…
Today, I was in a protected left turn lane prior to making the turn. When oncoming traffic (4 lanes) cleared, I gently pressed the gas pedal to start the turn, but a red “pre-sense” error triggered and slammed on the brakes. I moved my foot to the brake and then back to the gas, and the error cleared, allowing me to…
Structure 2 Read
Doors must be forcefully closed in order to fully lock. Frequently the doors (any of the 4 on the car) do not close upon vehicle entry. No warning that the door is not closed is provided by the vehicle. I have driven many miles with this unsafe condition, only to discover that the door was not fully latched upon my…
This vehicle has an automatic opening/closure feature for the rear trunk/hatchback door. It's activated by putting one's foot under a sensor under the rear fender. This is fine for opening the door but it also closes the hatchback door with considerable force. The feature can be activated inadvertently e.g. When…
Tires 1 Read
Entered a roundabout at perhaps 15mph. RR tire hits small area on rounded curbing where a small piece of concrete curbing (perhaps 3” wide by 8” high) had come out. Tire made contact with this area. Sidewall blew out. Had to have car towed and new tire installed. Over $400. I contacted Continental USA and opened a…
Visibility/wiper 1 Read
Component/System: Windshield washer fluid monitoring system (level sensor and warning). Observed Behavior: The system provides no advance or “low level” warning. The only alert occurs when the reservoir is completely empty, with no intermediate notification of low fluid. Failure Mode / Functional Impact: Washer…
Fuel/propulsion System 1 Read
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
Suspension 1 Read
The contact's wife owns a 2020 Audi A6. The vehicle was serviced under NHTSA Campaign Number: 21V295000 (suspension), however after a few months the contact had an issue with the vehicle's rear tires. The vehicle was taken to a tire center where they were unable to replace the rear tires due to severe damage to the…
A6 allroad years to avoid — and the clean ones
Complaints per model year. More reports usually means more cars on the road as well as more trouble, so read the crash and fire columns alongside the count.
| Model year | Complaints | Top system | Crashes | Fires |
|---|---|---|---|---|
| 2026 | Power Train | — | — | |
| 2025 | Visibility/wiper,forward Collision Avoidance | — | — | |
| 2021 | Electrical System | — | — | |
| 2020 | Electrical System | — | — |
The same model year, different builds
Every complaint carries the first 11 characters of the VIN — plant, year, body and engine. That is a production series, and complaints are spread across them very unevenly.
| Measure | Value |
|---|---|
| Distinct production series | 17 |
| Average complaints per series | 1.2 |
| Worst single series | 2 complaints |
| Average age at failure | 2.3 years |
A model average of 1.2 hides a worst series at 2. Enter a VIN above to see the numbers for that exact build instead of the model as a whole.
Owners reported these. Find out if yours is one of them.
- Complaints matched to the exact production run, not just the model
- What the car is worth given what tends to fail on it
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How we count
Every figure here comes from complaints owners filed with NHTSA — 1,100,006 of them, covering 1,982 models built between 1981 and 2026.
A complaint is an unverified report: someone wrote down what happened to their car. It is not a confirmed defect and not a recall. What makes the volume useful is the pattern — when thousands of owners of the same build describe the same failure, that is a signal no marketing brochure will give you.
Two things we do that the source does not. First, we compute the age of the car at the moment of failure from the incident date and the model year. Second, we group complaints by the first 11 characters of the VIN — the production series — so a bad plant run does not disappear into a model-wide average.
Frequently asked questions
What are the worst years for the A6 allroad?
By complaint volume, 2021, 2020, 2026 drew the most owner reports. Bear in mind that popular years put more cars on the road, so check the crash and fire columns too.
Which A6 allroad years are the cleanest?
2025, 2026, 2020 have the fewest complaints on file. For recent years that can simply mean the cars are young.
How many complaints does the Audi A6 allroad have?
20 owner complaints filed with NHTSA, covering 2020–2026. Of those, 0 describe a crash and 0 a fire.
Are these complaints verified?
No. They are unverified reports from owners. NHTSA publishes them as filed and investigates only a fraction. The value is in the pattern, not in any single report.
Can I check complaints for one specific car?
Yes — enter its VIN above. We match the first 11 characters, which identify the plant, year, body and engine, so you get complaints on that exact production series rather than the whole model.