Audi A4 Allroad Problems — All Years, Common Issues & Reliability

Sudden Unintended Acceleration occurred when turning vehicle onto a roadway from a standing stop at an intersection. It occurred at night, [XXX] at the [XXX] . The vehicle was headed west on [XXX] turning from the far left lane while stopped at the intersection of [XXX] and [XXX] when the vehicle suddenly accelerated at a high rate of speed. The car eventually came to a stop when applying firm steady braking. There was no adaptive cruise control turned on when the event occurred. There was driver assistance activated for lane control. The car reached a speed of 60mph in a very short amount of time while heading west on [XXX] There were other vehicles on the roadway at this time, [XXX].. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While reversing out of a parking space, the steering wheel on my 2024 Audi A4 Allroad wagon suddenly locked completely and could not be turned in either direction. A warning message appeared stating “Steering malfunction. Safe to drive.” However, the vehicle was not safe to drive due to complete loss of steering functionality. Restarting the vehicle multiple times did not resolve the issue. The vehicle was towed to an authorized Audi service center. At the dealership, the steering was functional again and no active faults were present. However, the diagnostic scan showed a stored trouble code: U103100 – FlexRay data bus No synchronization, logged at the exact time the failure occurred. The dealership confirmed no visible wiring damage or hardware fault but could not replicate the issue. The battery was tested and not deemed low enough to replace. No software updates or service bulletins were applied. The service center declined to escalate the issue to Audi Corporate, stating that escalation is only permitted if the issue occurs a second time. This incident involved total loss of steering, which poses a serious safety risk. There were no prior warning signs before the failure. The issue has not recurred yet, but the root cause remains unresolved and could endanger the driver and others if it happens while the vehicle is in motion.

The sidewall of the Continental ProContact TX 245/45 18 100H XL BSW MW developed a bubble over the course of driving the car 3,670 miles from date of vehicle purchase new in [XXX]. I drove the vehicle to the nearest Continental Tire dealer, America's Tire at 1327 S. Glendale Ave. Glendale, CA 91205 to have the tire inspected. The tire was confirmed and inspected at this Tire dealer December 30, 2024 at 9:51 AM. The defect was reported to the manufacturer on site by telephone and I was offered a 50% credit toward the purchase of a new tire. There was no warning given by the car's onboard Tire Monitoring system in the MMI. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6

My MMI continually refreshes so that i need to look away from the road to reset the MMI / access to maps/ access to sirius XM radio. it is a distraction that takes eyes off the road to do resets.

Car Play function of the MMI randomly (both wired and wireless) becomes unavailable in the system. When this happens, MMI does not connect to the previously connected phone, hands-free calls through MMI Bluetooth are not working as well. The local dealer (Audi of Lubbock) was not able to fix the problem.