Dead AC Compressor in Audi Q7 Needs Expert Diagnosis

Had nearly identical auto AC repair symptoms with my 2011 Audi Q5 2.0T. The AC unit completely failed during summer. Initial diagnosis showed the AC compressor had seized, causing the control unit to shut down the entire system as a protective measure. The fix required replacing both the AC compressor and control module since metal particles from the failed compressor had contaminated the system. This was a serious repair involving: 1. Complete system flush 2. New AC compressor installation 3. Replacement of the control unit 4. Fresh refrigerant charge 5. New receiver drier 6. Multiple system pressure tests Air conditioning repair on these models is complex due to integrated electronics. The warning lights and error codes typically indicate the control unit detected a major fault, in most cases this means component failure rather than just low refrigerant. For finding a shop: Look specifically for ones with Audi/VW certification and documented experience with modern automotive AC systems. The repair requires specialized knowledge of both mechanical and electronic HVAC components. The symptoms match classic compressor failure patterns in these models, getting it diagnosed soon prevents additional damage to other AC components.

Thanks for sharing your AC repair experience. My Q7 had almost the exact same car air conditioning issues last year. The cooling system diagnosis confirmed a failed compressor that sent debris through the lines, requiring a full system overhaul. Do you remember roughly what the total repair cost was? Also curious if youve had any refrigerant leaks or other AC problems since getting it fixed?

Thanks for asking about the follow-up costs and performance. After getting the automotive cooling system repaired by a certified technician, the AC compressor failure was fully resolved with no recurring issues. The total repair came to 980 Euro for fixing the defective air conditioning control unit and associated HVAC components. The cooling system has worked flawlessly since the repair with no refrigerant leaks or performance problems. The auto refrigerant charge has stayed stable and the vehicle HVAC system maintains consistent cooling output. This confirms the repair shop did a thorough job cleaning out all the metal debris and properly sealing the system. The investment was worth it to restore proper function and prevent secondary damage to other AC components. Having it fixed right the first time saved money in the long run by avoiding repeat repairs.

After getting multiple quotes, I finally took my Q7 to a certified Audi specialist for the car air conditioning repairs. The cooling system diagnosis matched exactly what you described, failed compressor with metal debris contamination. Total cost came to 1150 Euro for the complete AC unit overhaul. Good news is the repair was done right. No refrigerant leaks or other issues six months later. The auto refrigerant levels have stayed stable and the AC blows ice cold again. Definitely worth spending a bit more for a proper fix rather than risking cheaper repairs that might not last. Thanks again for sharing your experience. Really helped me understand what I was dealing with and set proper expectations for the repair costs and process.