IllustrationThe engine cooling system of my 2022 Audi SQ7 has failed repeatedly over the past two years, resulting in multiple warranty repairs. Components replaced include the coolant pump, water pump, radiator breather hose, thermostat housing, seals, gaskets, and breather lines. Despite these repairs, the vehicle continues to experience …
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The engine cooling system of my 2022 Audi SQ7 has failed repeatedly over the past two years, resulting in multiple warranty repairs. Components replaced include the coolant pump, water pump, radiator breather hose, thermostat housing, seals, gaskets, and breather lines. Despite these repairs, the vehicle continues to experience coolant loss and a persistent burning coolant smell. During the time of these repairs we were repeatedly told to "top off" the coolant because "these cars are just like that" (communication I also have in writing. After the most recent repair in July 2025, dried coolant residue is still visible under the hood, coating surrounding parts and the burning coolant odor returns. While the invoice shows I declined service and warned of damage, I have email correspondence stating otherwise and the repair is shown at the bottom on the invoice. The vehicle is available for inspection upon request. Safety has been compromised due to the failure of the vehicle to consistently display overheating or escalating coolant warnings despite substantial coolant loss multiple times. In one incident, the MMI system went black while multiple malfunction lights illuminated, forcing a system restart. This raises concerns about electrical reliability and driver awareness in critical moments. The issue has been confirmed by Audi Dominion in San Antonio, TX across six separate service visits in addition to multiple warranty related visits. Several technician videos documented coolant leaks, part failures, and test results. Audi of America has been formally notified, and I have detailed service records available. Symptoms began in December 2022 and have continued through July 2025. Warning lights and messages have been inconsistent. The vehicle has required coolant top-offs between visits, but the system did not consistently alert me when coolant levels dropped. This inconsistency, along with the unresolved nature of the failures, presents an ongoing safety risk.