start car, warm air blows for a few minutes
Frequently, when I start the car from a cold state (sit for a few hours), the AC will blow warm air anywhere from 2-5 minutes. Once the AC blows cold, all is fine. If I let the car sit a few hours, even on a hot day, and start up my xB, the same issue may occur again. I had the dealer check the system, they could find no issues. I thought maybe the hot/cold air duct control may be the problem but I moved the hot/cold control back and forth several times with no improvement. Its almost like the compressor is not not always engaging right away from a cold start. Again, once it blows cold, the issue will never return until the next cold start.
Please help, thank you.