I purchased a 2018 V90CC with 30k miles on 7/19/21 and enjoyed the bejeezus out of it for 2.5 weeks before taking it to the local dealer. I took it in to fix (under warranty) an HVAC issue where the A/C blows hot unless set to "LO"(in which case it blows perfectly cold air). I took it to the dealer on 8/5/21 and haven't seen it since. They squabbled for the first two weeks about who was going to pay for the work (another dealer had done work on the HVAC previously) and for the last four weeks it has been a frustrating series of calls where they give me variations of "we don't know what's wrong with it and are troubleshooting with Volvo." Now they gave me a 2021 XC90 loaner that I've had the entire time so know I can't complain too much, but 6 weeks in the shop for an HVAC issue? That seems insane to me. They tell me they've tried replacing the compressor and checked the cabin temperature sensor and neither of those solved the problem. At this point I don't really have trust in anything they're telling me. So I have two questions: 1) Have any of you dealt with an issue like this and found a solution? 2) Should I just chill out and enjoy the free miles on the loaner vehicle as long as I have it, or start ramping up efforts (BBB, VOLVO Corporate, etc) to try to get them to get this thing sorted out?