2021 Audi E-Tron Problems
Owner-reported complaints filed with NHTSA, grouped by component
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What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Audi E-Tron, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical2451.1%
- Powertrain (other)919.1%
- Engine714.9%
- Brakes36.4%
- Driver assistance24.3%
- Body & structure12.1%
- Fuel system12.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
I own a 2021 Audi e-tron with approximately 58000 miles. Beginning in March 2026, the vehicle developed intermittent Virtual Cockpit/instrument-cluster problems with blank display. I reported the condition to Audi dealer of Princeton NJ. The vehicle subsequently experienced two dead 12-volt battery incidents and became inoperable. The second 12 volt battery was new. Following the most recent incident, the Audi dealer diagnosed the Virtual Cockpit/instrument cluster as causing a drain on the 12-volt battery and recommended replacement at a cost of approximately $3,500. The replacement part is unavailable, and Audi has provided no estimated delivery date. The vehicle has remained out of service since July 03rd 2026. This condition presents a potential safety concern because failure of the instrument cluster may prevent the driver from reliably viewing speed, warning indicators, vehicle status, range, and other safety-related information. The recurring 12-volt battery discharge may also leave the vehicle unexpectedly disabled. The vehicle is additionally showing an indicated range of only approximately 160 miles at 100% charge. Audi has not established whether this is related to the instrument-cluster failure, high-voltage battery condition, battery-management system, software, or another electrical defect. Audi has not provided documentation of a comprehensive high-voltage battery health and capacity evaluation. Audi issued a recall or service campaign affecting other 2021 Audi vehicles for substantially similar Virtual Cockpit/display problems. However, Audi states that my VIN is excluded and has not provided a technical explanation identifying a different component, part number, software version, supplier, or failure mechanism. I request that NHTSA evaluate whether the recurring instrument-cluster failure and 12-volt battery discharge constitute a broader safety defect and whether the existing Audi recall or service-campaign population should include this car.
Moisture build-up in the high-voltage electrical system through a faulty seal on the charging socket, which can cause a short circuit and significantly increase the risk of a vehicle fire. If you get a warning light saying "electrical system: fault," you should stop driving immediately, park outdoors away from structures, and not charge the vehicle. Braking problems caused by sub-standard welding within the ABS rotor and shaft. High-voltage battery modules that may overheat, also increasing the risk of fire. An infotainment unit that can become internally damaged when the vehicle is shut off, resulting in an inoperative rearview camera display a federal safety standard violation. This clearly shows the vehicle was badly manufactured, during a chip shortage in 2020. This vehicle is a complete failure by Audi and puts so many innocent peoples lives at risk.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
Moisture build-up in the high-voltage electrical system through a faulty seal on the charging socket, which can cause a short circuit and significantly increase the risk of a vehicle fire. If you get a warning light saying "electrical system: fault," you should stop driving immediately, park outdoors away from structures, and not charge the vehicle. Braking problems caused by sub-standard welding within the ABS rotor and shaft. High-voltage battery modules that may overheat, also increasing the risk of fire. An infotainment unit that can become internally damaged when the vehicle is shut off, resulting in an inoperative rearview camera display a federal safety standard violation. This clearly shows the vehicle was badly manufactured, during a chip shortage in 2020. This vehicle is a complete failure by Audi and puts so many innocent peoples lives at risk.
Twice in the span of 3 months my 2021 Audi eTron with less than 25K miles shutdown while driving with an error message "Electrical system: malfunction! Safely stop vehicle." At this point the drive train is completely disengaged and all that can be done is coast to a stop with limited ability to steer or control the vehicle. The vehicle must then be towed to a dealership. If this had happened on a busy multi-lane highway, there is a high probability of an accident occurring putting occupants of the car and other cars at risk. In both cases there was no prior warning of any problem with the vehicle. The first repair in July required Audi to replace the master controller located in the battery pack and replace the front engine due to a fluid leak. This took 6+ weeks to complete. I had the car back 5 weeks after the first repair when it happened again. I am still waiting diagnosis on second repair.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
What component or system failed or malfunctioned, and is it available for inspection upon request? - While on highway the vehicle loosed all Power indicating Electrical Malfunction How was your safety or the safety of others put at risk? It happened on I-35 Freeway twice putting me in danger of 18 wheelers around me. I am afraid to be in the vehicle even if they return it to me. Based on records this issue has been present on the car since it rolled off manufacturing. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes and Dealer has reproduced it and has the car with them for 5 Plus months. Have replaced many components and are not able to resolve it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? South Austin Audi Dealer has been working with Audi Corporate Technical team and have replaced 5 parts to no resolution. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Electrical Malfunction - Red light flashing to pull the care over to the emergency lane but there is no acceleration - you are left to depend on whatever momentum is left on the car. Based on records this issue has been present on the car since it rolled off manufacturing. Based on records this issue has been present on the car since it rolled off manufacturing.
This issue occurred with my Audi a year after purchasing it and the vehicle had 19,282 miles on it at the time. I received an "Electrical System Malfunction - Please contact service" error message (in yellow) on my 2021 Audi etron vehicle display. The message was displayed for a few minutes as I was traveling home from work and then disappeared. The following day, I was on my commute into work on the highway, traveling 70 mph, and received an "Electrical System Malfunction - Safety stop vehicle" error message. The vehicle immediately started displaying other error messages and the motor turned off, while the vehicle was in motion. Luckily, I was able to move to the shoulder of the highway safely. The experience was frightening as I was traveling 70 mph and experienced a complete vehicle shut down with little to no warning. The Audi etron had to be towed to the dealership to be repaired. The dealership had my vehicle for 3.5 weeks while they repaired the car. They inspected the vehicle and determined it was a front motor failure and it had to be replaced. I am extremely concerned about the safety issues the Audi etron has created for me and others, especially given that it is a newer vehicle with low mileage.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
Moisture build-up in the high-voltage electrical system through a faulty seal on the charging socket, which can cause a short circuit and significantly increase the risk of a vehicle fire. If you get a warning light saying "electrical system: fault," you should stop driving immediately, park outdoors away from structures, and not charge the vehicle. Braking problems caused by sub-standard welding within the ABS rotor and shaft. High-voltage battery modules that may overheat, also increasing the risk of fire. An infotainment unit that can become internally damaged when the vehicle is shut off, resulting in an inoperative rearview camera display a federal safety standard violation. This clearly shows the vehicle was badly manufactured, during a chip shortage in 2020. This vehicle is a complete failure by Audi and puts so many innocent peoples lives at risk.
On five separate occasions across two separate drivers, we have experienced a partial brake failure in this vehicle. We strongly believe this to be a software defect and not a mechanical fault. On the e-Tron, the first portion of the brake pedal swing typically activates the regenerative braking. About mid-way through pressing the pedal, it changes to "real" mechanical brakes. When this brake failure occurs, we get to that midway point and the car lets off the regenerative braking but does NOT apply the mechanical brakes, so the end result is that the more you press the brake pedal, the less it works. Three of these five occasions occurred in one day, so by the time the third time came around, I was really paying attention and I'm very confident this wasn't driver error. In at least one case, the only reason that a crash was avoided is because the automatic braking / forward collision system activated. The vehicle has been inspected by a dealer, who found "No Repairs Recommended". We requested an update to the ABS module software, as this software update is known to resolve multiple other problems with the braking system (see TSBs 2072977, 2061906) but we were denied the update.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
The contact owns a 2021 Audi E-Tron. The contact stated that while driving approximately 5 MPH, the vehicle experienced phantom braking and came to a complete stop. The Forward Collision Avoidance warning light was illuminated. The vehicle stalled and was able to restart after 10-15 attempts. The vehicle was taken to the dealer. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 12,780.
While on the highway, the car threw the following error message: "Electrical system: malfunction! Safely stop vehicle" I was able to drive for a mile or so to pull into a residential street and at that point, the vehicle just wouldn't move. It was essentially stalled, and I had to call roadside assistance to have it towed. After a few days, I receive an update from the dealer that the motor needs to be replaced - this car has done like 19,000 miles and the motor has apparently died abruptly. On further research, I noticed that there have been other etron owners that have had to deal with similar issues, often happening abruptly and while their car was in use. I'm glad that I was able to pull over to safety and there was no other serious injury - this could have ended very differently.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
The vehicle's charging system keeps failing and turning off the charger. The rear doors do not open from the inside of the vehicle (intermittently).
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
Vehicle traveling when electrical systems malfunction message came on. Said pull over safely and call for service. After car was slowed to a stop, the vehicle was disabled with no forward or reverse drive possible. The car was stranded close to the middle right of the street. Car had to be towed to the nearest dealership around midnight. Problem has been confirmed with the dealer and they are still looking into the problem. Prior warnings messages of headlamp malfunction, Audi emergency assist unavailable, high beam headlight faulty were present about a month prior but did not disable the vehicle.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .