2005 passat air conditioner failure, blows cold air intermittently. customer states that it blows cold air intermittently then will stop for no reason and blow ambient temperature air. **nar**kb the dealer replaced various parts within the ac unit, however the consumer continued to experience ac failure. the consumer believed there was a serious problem with the electrical system or the wiring harness. *jb the consumer stated he replaced two tires due to extreme cupping. *tr