Question about 2000 Volkswagen Beetle

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From time to time the AC on a 50 mile commute the airflow will lower to almost nothing and air temp increase while the blower noise sounds resisted. I can exit the interstate and start back up and the airflow increases slowly along with the air temp returning to normal as the blower motor noise returns to normal. I replaced the AC resistor and checked the feon. Doesn't happen every trip.. I have found not allow the recirculation button to be used helps this but takes longer to cool down. Also not allowing the temp selector to its coldest setting helps.. Thanks, hope this describes enough in laymen's terms to understand. tj

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I dont know if you have a cabin air filter if you do replace it if its real dirty. most cars ac will have this problem if the ac is low on freon. when you check the freon. make sure the ac is on max ac, at its coldest setting with the fan on max. with the engine running check ac pressure. have someone hit the gas a little & see if the pressure drops. add as needed. most gauges from the parts store have a dial on the front. point it at outside temp & make sure pressure is the max for that range.

Posted on Oct 15, 2013

  • 16VJohn Oct 17, 2013

    I agree with Joshel, check the cabin air filter. Your car does have one. It's accessible from the rain tray under the hood. Sounds like the coil is freezing over, restricting air flow. Next time it freezes up, try turning the AC switch off (just normal air flow, with AC off) this could rapidly defrost the coil. If airflow increases, you know the coil is freezing over.



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