Skip the auto shop - Our mechanics make house calls

Q: Ac cuts off after a while

asked by on

2003 Volkswagen Beetle. Ac blows cold, after a while when the fans turn on at a higher rpm, the compressor shuts off.

A: While the engine is running and the air con...

While the engine is running and the air conditioning system is commanded on, both cooling fans in the assembly should be powered on. The vehicle will turn the air conditioning compressor on and off depending on the system load in an effort to increase fuel efficiency. Your symptoms sound to me as if the air conditioning system senses a higher than normal temperature or pressure and increases the fan speed in an effort to cool things down. If the temperature or pressure does not decrease after some time, the system can shut down the air conditioning compressor in an attempt to prevent damage. This is the same if the engine begins to rise too high above the acceptable operating temperature. The vehicle can shut down the air conditioning system to lessen the load on the engine. Have one of our experienced technicians make a visit to look over the vehicle and diagnose your air conditioning issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: change a thermosrat on a 2004 VB beetle 1.8

Make sure that all of the old gasket material is removed and that the surface is clean and dry before installation. Sometimes, gaskets will leak due to an unclean surface or uneven surface. By using RTV (silicone), it fills in...

Q: AC rattling and Alignment Check Gauge Light coming on.

Based on your question I believe that you are having an issue with the serpentine belt tensioner on your truck. The serpentine belt is on the front of the engine and drives all the accessories attached to the engine. This...

Q: idling rough warning lights

Hello. I think the car is running rough because the Check Engine Light is on. It is possible that the alternator is not working properly causing low voltage, which would make the car difficult to run properly. I would suggest...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.