RS7 Blower Motor Failure: Dead Air Flow Needs Fix

Having experienced similar heater fan issues on my 2014 S6, I can relate to this problem. The complete loss of air flow through the vents despite fan speed controller adjustments is a classic sign of blower motor failure. In my case, the issue turned out to be a failed blower motor, not the electrical wiring. The diagnosis revealed that debris had entered the blower housing, causing the motor to seize. The cabin fan needed complete replacement, including the surrounding assembly due to damage from the seized motor. The repair was significant but straightforward. The technician had to remove the glove box and lower dash components to access the blower motor assembly. They also cleaned the air intake area to prevent future debris accumulation. This is typically a serious repair that requires proper diagnostic equipment to verify the electrical systems and blower motor function. The symptoms you describe, no air circulation and complete loss of air flow, match exactly what I experienced. Given the mileage on your RS7, this type of failure is not uncommon. Consider having it checked soon, as driving without proper cabin ventilation can lead to windshield fogging and unsafe driving conditions.

Thanks for sharing your S6 experience. That blower motor issue sounds exactly like what I am dealing with in my RS7. The HVAC system being completely dead matches your description perfectly. Were there any other climate control components that needed replacement when they fixed your car? I am planning to visit a shop next week since the lack of airflow is getting really annoying, especially during temperature changes. Would be helpful to know what total cost I should expect for a proper fix of the cabin fan system.

After getting my S6 repaired by a certified technician, I can confirm the complete failure of the HVAC system was indeed just the blower motor. The repair cost came to 365 Euro, which covered both parts and labor. The climate control unit and other components were tested but worked perfectly fine. The fix resolved all airflow issues completely. The air conditioning is now working as intended, with proper circulation through all vents at every fan speed setting. No other parts of the system required replacement, which was a relief since I initially worried about more extensive electrical wiring problems. Based on my experience, your RS7 likely has a similar blower motor setup. The technician explained these motors commonly fail due to regular wear and debris buildup in the system. Getting it fixed sooner rather than later is worth it to restore proper cabin ventilation and avoid any related issues.

I finally took my RS7 to a certified shop yesterday after dealing with the dead air conditioning system for over a week. The diagnosis confirmed exactly what was discussed, a failed blower motor. The cabin fan had seized due to debris accumulation, just like the S6 case mentioned. The repair took about 3 hours and cost 420 Euro total. The technician found the electrical wiring was perfectly fine, but the blower motor was completely burned out. They cleaned the entire air flow system while replacing the motor, which should prevent future debris issues. The air conditioning is now working perfectly again with proper air circulation at all fan speeds. It was definitely worth fixing rather than continuing to drive without proper ventilation. The total cost was a bit higher than expected, but having a properly functioning climate control system again makes it worthwhile.