2021 Audi Q5 Transmission and drivetrain Problems

“Q5 has a very serious defect, that is, there is a gateway module located under the rear seat cushion/cup holder. All of the communications to all the controllers go through this little box. If water spills, it collects around the gateway and corrodes it, which will shut down the car. This shutdown occurred while I was driving my family. Lost all power, engine, electrical, everything. Barely coasted out of the roadway. This is a design flaw to locate this sensitive module underneath rear cup holders and will lead to dangerous situations for people in the car.”

“On 8/3/26, my 2021 Audi Q5 began throwing numerous different malfunction/error alerts and the engine turned off while driving after a bottle of water had partially spilled onto our backseat behind the drivers side. The vehicle was towed to a nearby mechanic who determined that liquid damaged the gateway control module located under the backseat of the vehicle, as the gateway control module is placed in a protective cover (an unsealed plastic bag) and that bag visibly had liquid inside of it. …”

“My car always did a weird shuddering thing when taking turns a certain way. I just thought it was part of how the new vehicle worked. I thought it was strange when I took my car in to repair a front tire, and was told / showed that the back two tire treads were worn down. The new car only had 20,249 miles. But I read somewhere that some new car dealers use lower tread tires to save money, so I did not pursue anything. Then, when someone pointed out that the 'weird shuddering' was not normal, I took it into Audi to have them look at it. …”

“We took our 2021 Audi Q5 to the Audi dealership because our vehicle seemed to be skipping gears and making jerking motions while driving. I believe it began happening at least a couple of months ago when my wife noticed a change in driving dynamics. She is the vehicle's sole driver. After taking it to the Audi dealership and driving with the technician in the passenger seat, a diagnosis was made immediately while backing from the parking space. The technician indicated there was no need to go any further because he could determine it needed a differential fluid change. …”

“The engine has failed and I am not sure why my Q5 was not included in the recall for coolant issues leading to engine failure. My issue started last winter when the car would suddenly kick in a loud fan. It would flash a warning that the start/stop malfunctioned as it only happened when stopped and/or parked. It was extremely alarming to hear so I would turn the car off and let it sit. When I started it up, there were no warnings and would drive normally. This continued to happen randomly. Then came the coolant low warning, engine temp, along with an RPM warning that kicked on the loud fan. …”