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: Convertible top doesn't always close

There is a reset procedure for the system as it is tied into the electric windows. Try the following procedure; make sure all four windows are all the way up before you do this. If they're down right now, turn...

Q: AC isn't blowing at all

There are a couple of things this could be. There is a component inside your car’s ventilation system called the “blend air door”. When you turn your environmental system from heat to cold, the door should change to drawing in...

Q: One of my transmission sensors are out I'm not for sure which one

Hello. This may be a sensor issue but it is possible that some mechanical damage may have occurred to the transmission. I would recommend having your shift linkage and the transmission itself inspected by a qualified professional to make sure...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.