2024 Audi Q4 E-Tron Problems

The high-voltage charging system has repeatedly malfunctioned. The vehicle intermittently displays a "Charging System Malfunction" warning and a message that only AC charging is possible, the charge-port indicator blinks green and then red, and the vehicle cannot be reliably charged. The vehicle and the affected charging components are available for inspection on request. Safety risk: because the vehicle cannot be dependably charged, it can be left without sufficient power to complete a trip, creating a risk of losing motive power and leaving the driver stranded, potentially on a roadway or in an unsafe location. The affected onboard charger is the subject of Audi Safety Recall 93FR (Onboard Charger with Integrated DC/DC-Converter) — a component the manufacturer has already identified as safety-related. As of 8/10/26, the fault has returned and I no longer consider the vehicle safe to rely on for normal driving. Reproduced and confirmed by a dealer: yes, on multiple occasions. On 06/03/2026 (~52,771 miles), Audi Tysons Corner recorded the "Charging System Malfunction / unable to charge / blinks green then red" complaint and performed a combined software update (ID.S 5.4.3, TSB 2080398). On 07/08/2026 (~54,673 miles), the same dealer recorded the "Charging System Malfunction / only AC charging possible" complaint, reported diagnostic fault P33E800 (charge socket / charge connector lock mechanical malfunction), and replaced the Connector Lock 1 Actuator (F498). The defect has since returned. Inspected by the manufacturer and others: the vehicle has been inspected and serviced only by Audi authorized dealers (Audi Tysons Corner and Audi Chantilly), including warranty and recall work, with diagnostic/GFF logs uploaded to Audi. On 10/13/2025 (~37,447 miles) Audi performed Safety Recall 93FR on the onboard charger, and the high-voltage charger was subsequently replaced under that recall. The vehicle has not been inspected by police or insurance. Repair invoices are avail

On March 20, 2026, while my 2022 Audi Q4 e-tron (VIN: [XXX] ) was parked in my private garage at approximately 98% battery charge, I attempted to start the vehicle and experienced a complete electrical system failure. All electronic systems failed simultaneously, including: brake system (Brake System Failure warning displayed), parking brake sensor, traffic/charging system, power windows, and side view mirrors. The vehicle could not be placed into neutral. AAA was dispatched and the vehicle required a jump-start to the 12-volt auxiliary system before it could be moved. The vehicle was towed to Audi Beverly Hills for inspection. The dealership diagnosed the fault as: Control Module Main Processor Performance, Symptom Code 20079, per Technical Service Bulletin TSB 2074484/3. Per that TSB, the dealer was instructed by Audi of America to create a PSS (Pending Service Solution) record, erase the fault memory, and release the vehicle to me with no repair performed. The stated guidance from Audi of America to the dealer was to inform me that this is "an extremely infrequent fault" that is "being reviewed." No fix exists. No timeline for a fix has been provided. The vehicle was released to me with the underlying defect unresolved. This is a known, manufacturer-acknowledged defect with no current remedy. As a fully electric vehicle, the Q4 e-tron's braking and all safety systems are electronically dependent. A recurrence of this fault while driving presents an unreasonable safety risk. I am requesting NHTSA investigate whether TSB XXX /3 and Symptom Code 20079 warrant a formal safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On three occasions, while in regenerative braking mode, my car failed to engage the brakes at low speeds. After pressing on the brake pedal for several seconds with no response, the wheels then locked completely - but only after the car had traveled had traveled around 30 feet. The dealer has inspected the car and has not been able to replicate the problem, so they say there is nothing they can do to correct it (although they are NOT saying that they don't believe me). There were no warning lights or messages about a failed system - the brakes just didn't work. This was very unnerving to me, and I don't see how I can drive the car without some corrective measures taken. I was fortunate that these incidents happened where no person or other car was nearby, but that was only luck. I reported the three incidents to the dealer, and brought the car in twice for them to inspect the car.

On March 20, 2026, while my 2022 Audi Q4 e-tron (VIN: [XXX] ) was parked in my private garage at approximately 98% battery charge, I attempted to start the vehicle and experienced a complete electrical system failure. All electronic systems failed simultaneously, including: brake system (Brake System Failure warning displayed), parking brake sensor, traffic/charging system, power windows, and side view mirrors. The vehicle could not be placed into neutral. AAA was dispatched and the vehicle required a jump-start to the 12-volt auxiliary system before it could be moved. The vehicle was towed to Audi Beverly Hills for inspection. The dealership diagnosed the fault as: Control Module Main Processor Performance, Symptom Code 20079, per Technical Service Bulletin TSB 2074484/3. Per that TSB, the dealer was instructed by Audi of America to create a PSS (Pending Service Solution) record, erase the fault memory, and release the vehicle to me with no repair performed. The stated guidance from Audi of America to the dealer was to inform me that this is "an extremely infrequent fault" that is "being reviewed." No fix exists. No timeline for a fix has been provided. The vehicle was released to me with the underlying defect unresolved. This is a known, manufacturer-acknowledged defect with no current remedy. As a fully electric vehicle, the Q4 e-tron's braking and all safety systems are electronically dependent. A recurrence of this fault while driving presents an unreasonable safety risk. I am requesting NHTSA investigate whether TSB XXX /3 and Symptom Code 20079 warrant a formal safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was stopped in line at a drive through. The car started rolling (electric cars should not do that) so I tapped the brakes. The car started accelerating and I started braking hard and the car just sped up. Auto braking and collision warning did not kick in. The car slammed into the car parked in front of me and drove it forward about 10 feet. The driver has soft tissue injuries as do I. In the past, it has also lost acceleration while driving did not respond to the gas pedal. I frequently get warnings that the safety features are temporarily not working.

The contact owns a 2024 Audi Q4 E-Tron. The contact stated that while operating the vehicle in drive and reverse, the audible sound to alert pedestrians that the vehicle was in motion was intermittently inaudible. The contact stated that the sound was inoperable while the vehicle was in reverse, creating a back over hazard for pedestrians. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure. The failure mileage was 1,100.

My Audi Q4 Etron has had this issue since it was new. The car has a sensor as part of the drivers seat. Once you sit in the seat the car turn on and you can start driving. The problem is if you make any movements, like turn to look back while your backing the car up or you reach over to pick up something off the passenger front seat the car will abruptly stop and turn off. It can take up to two minutes for the car to start again, twice i was left in the middle of a four lane intersection stranded. The second time it nearly caused an accident as multiple cares slammed their brakes. The dealership said that its a common complaint but there in nothing they can do, i was told to stay seated and to not move while driving. My wife also got stranded blocking an intersection and it also almost caused an accident, she was so scared that she will not drive the car or ride in it when im driving. Audi need to fix this before someone gets killed. I hope you can help.

I am filing this complaint due to ongoing electronic and drivetrain malfunctions that may impact safe vehicle operation. AWD System Malfunction (Primary Safety Concern) The vehicle repeatedly displays four-wheel drive system malfunction warnings. I have brought the vehicle to the dealership three times for this same issue. The malfunction continues unresolved, raising concerns about traction, stability, and drivetrain reliability. Intermittent Entry Failure Biometric entry intermittently fails, forcing use of the key fob. This could delay access in emergency situations. Remote System Failures Remote vehicle functions (lock/unlock and climate control) operate inconsistently or fail entirely, often generating error messages. Audi has stated this is a system infrastructure issue with no current fix. Battery Power Inconsistency Although the battery indicates 100% charge, actual available power never reaches full output and drops shortly after driving. This creates uncertainty about vehicle performance and usable range. HUD Feature Does Not Perform as Advertised The head-up display does not show surrounding vehicle speeds as advertised, only colored indicators. This removes expected situational awareness information. Summary The vehicle exhibits repeated drivetrain warnings, electronic access failures, and inconsistent battery performance. These issues persist despite multiple service visits. I am requesting this complaint be formally recorded and investigated due to potential safety implications.

On March 20, 2026, while my 2022 Audi Q4 e-tron (VIN: [XXX] ) was parked in my private garage at approximately 98% battery charge, I attempted to start the vehicle and experienced a complete electrical system failure. All electronic systems failed simultaneously, including: brake system (Brake System Failure warning displayed), parking brake sensor, traffic/charging system, power windows, and side view mirrors. The vehicle could not be placed into neutral. AAA was dispatched and the vehicle required a jump-start to the 12-volt auxiliary system before it could be moved. The vehicle was towed to Audi Beverly Hills for inspection. The dealership diagnosed the fault as: Control Module Main Processor Performance, Symptom Code 20079, per Technical Service Bulletin TSB 2074484/3. Per that TSB, the dealer was instructed by Audi of America to create a PSS (Pending Service Solution) record, erase the fault memory, and release the vehicle to me with no repair performed. The stated guidance from Audi of America to the dealer was to inform me that this is "an extremely infrequent fault" that is "being reviewed." No fix exists. No timeline for a fix has been provided. The vehicle was released to me with the underlying defect unresolved. This is a known, manufacturer-acknowledged defect with no current remedy. As a fully electric vehicle, the Q4 e-tron's braking and all safety systems are electronically dependent. A recurrence of this fault while driving presents an unreasonable safety risk. I am requesting NHTSA investigate whether TSB XXX /3 and Symptom Code 20079 warrant a formal safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owned a 2024 Audi Q4 E-tron. The contact stated upon driving into the parking lot of an occupied charging station at 30-35 MPH and attempting to pull into the charging station, the vehicle accelerated unintendedly and spun several times. The contact stated that she depressed the brake pedal and attempted to steer the vehicle, but the vehicle failed to respond. The contact pressed the Push to Start button to stop the vehicle, but the passenger's side of the vehicle hit and knocked down a small tree, crashed into an embankment, and the vehicle stopped. The air bags did not deploy. There was no warning light illuminated. The contact was able to exit the vehicle. There was no injury sustained. No police report was filed. The vehicle was towed to G & C Auto Body(3440 Stanley Blvd, Pleasanton, CA 94566) to be repaired. The dealer was notified of the failure and advised the contact to tow the vehicle to their location after the body repair because they would need to read the EDR to determine the cause of the failure. The vehicle was not repaired by G & C Auto Body and was deemed a total loss by the insurance company. The manufacturer was notified of the failure. The failure mileage was approximately 5,000.

Our Audi has 13k miles. We noticed large chunks of rubber pulling away on the treads with pieces large enough to put our finger into. The dealer says they have seen this problem before with this tire

The contact owns a 2024 Audi Q4 equipped with Bridgestone Tires, Tire Line: Alenza, Tire Size: 255/45/R20, DOT Number: (N/A). The contact stated that while her friend was driving at an undisclosed speed, the message "Tire Pressure Lost" was displayed. The friend pulled into a parking lot to inspect the vehicle and noticed a blowout with one of the tires. The local dealer was contacted. The vehicle was not towed to a dealer to be diagnosed. The contact stated her friend waited for towing assistance. The contact stated that all four tires were replaced, and the vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 114,630. The VIN was invalid.

Car had electrical malfunction warning please contact costumer support and car died and zero damage to the body or the car. But the side air bags faulty went off. This car had a prior recall on file for same issues of car dying off and clerical problems. I got this car in September 2025 and had issue with it within the second month of having this car. I was not told there was a prior recall at all.