2020 Audi Q5

On September 2, 2026, I purchased a used 2020 Audi Q5 with disclosed Lemon Law Buyback title branding. Approximately two hours after taking delivery, the vehicle began exhibiting a pronounced vibration/judder in the drivetrain when turning the steering wheel at low speed, approximately 1-5 mph. Initially occurring only at full steering lock, the symptom has progressively worsened and now occurs during slighter turns as well, with increasing frequency. The vehicle operates normally in a straight line. This is consistent with Audi Technical Service Bulletin 2059057 (Quattro Ultra AWD vibration/binding in tight turns), applicable to 2018-2020 Audi Q5 vehicles. Given this vehicle's disclosed prior manufacturer buyback history, this may represent a recurring, unresolved drivetrain defect.

Gateway control modular failure. At dealer currently. We took pictures. Multiple reports of the exact same thing on Audi forums online. Audi confirmed same issue. While driving car it suddenly stopped and the emergency brake was automatically applied. No warning, no way to Live the car to safety, all the warning lights began to flash, windows started to rolling up and down. Then the car just turned off. Unable to start it, turn it on, move it, nothing. Needed a special tow truck to have it towed to dealer. A serious safety issue. I am 8 m pregnant, had my brother and 4 year old nephew in car. I am concerned for my safety but equally concerned for every Q5 has this gateway module in this location. Every person driving a Q5 and other drivers can be affected by the design flaw of the location/ lack of protection of this gateway module. We were lucky we were not on the highway. What if this happened on a highway at high speeds or in a curve.

OVERALL PROBLEM: AUDI Q5 2020 APPEARS TO HAVE A COMPUTER MALFUNCTION THAT INSTANTLY DISABLES ALL SYSTEMS. VEHICLE 'SHUT ITSELF OFF' AT A BRIEF STOP AND BECAME VERY DIFFICULT TO CONTROL, ROLLING INTO INTERSECTION. DETAILS: I STOPPED CAR AT RESIDENTIAL NEIGHBORHOOD STOP SIGN (BRIEF AND COMPLETE STOP, NO WAIT), IMMEDIATELY READY TO PROCEED FORWARD. AUDI'S 'AUTO STOP/START' FEATURE SHUT OFF THE ENGINE, THEN IMMEDIATELY ALL ELECTRONICS SHUT DOWN. THE CAR BASICALLY 'TURNED ITSELF OFF.' VEHICLE THEN BEGAN DRIFTING/COASTING INTO INTERSECTION. CONTROLS WERE UNRESPONSIVE. I REALIZED THE POWER BRAKES AND POWER STEERING WERE DISABLED. I BRAKED VERY HARD, WHICH STOPPED THE CAR. HAD TO KEEP BRAKES PRESSED VERY HARD TO KEEP CAR FROM MOVING. IGNITION BUTTON WAS UNRESPONSIVE. I THEN NOTICED A SMALL MESSAGE ON THE DASHBOARD CONTROLS WHICH READ SOMETHING LIKE 'START/STOP IGNITION SYSTEM DISABLED ' PUT CAR IN P.' (THIS WAS THE ONLY WORKING ELECTRICAL FEATURE I NOTICED, THE EVENT WAS FRIGHTENING AND DISORIENTING, BUT I'M FAIRLY SURE NOTHING ELSE WAS FUNCTIONING). I THEN SHIFTED GEARSHIFT TO PARK, AND WAS ABLE TO START THE CAR AND DRIVE AWAY. I REPORTED PROBLEM TO DEALER. DEALER CLAIMED TO INSPECT VEHICLE, AND SAID THEY WERE UNABLE TO FIND ANYTHING WRONG. DEALER SAID VEHICLE'S COMPUTER HAD NO RECORD/MEMORY OF THE INCIDENT. DEALER ALSO SEEMED RESISTANT TO PROPERLY DOCUMENTING THE INCIDENT ON THEIR PAPERWORK. I REPORTED THE PROBLEM TO AUDI CORPORATE IN AUBURN HILLS MI, EXPLAINING I NO LONGER FELT SAFE DRIVING THIS CAR, AND WOULD NOT DRIVE IT AGAIN. AUDI CLAIMED TO PERFORM THEIR OWN INVESTIGATION, AND THEIR BRIEF REPLY SAID THAT THEY WERE NOT OBLIGATED TO DO ANYTHING UNDER APPLICABLE LEMON LAWS. CAR WAS IN 3RD MONTH OF LEASE, ~150 MILES. PREVIOUSLY I DROVE AN AUDI A4 2017 FOR 3 YEARS SO I WAS/AM VERY FAMILIAR WITH THE WAY AUDIS OPERATE.