Q: My A/C is not blowing cold, 2012 Volkswagen Jetta

asked by on August 22, 2016

I recently took my car to the shop to have the oil changed, and the mechanic said I needed to replace the air compressor. The A/C still blows, and it blows cool air eventually, but it takes a long time for it to cool down after it has sat in the heat all day and it never blows very cold air. Does this sound like I need to replace the air compressor? Or is there an easy way for me to check it?

AC Compressor Replacement $715.49 - $3134.49 Get a Quote
AC is not working Inspection $111.46 - $131.46 Get a Quote

There is an easy way to do a type of check by using a low side pressure gauge from a local parts store. Many places sell the can of refrigerant with the hose and gauge that come with it or the hose separate. The reading on this gauge is very vague and doesn’t show all of the information necessary to diagnose a problem, but can give you a general reading. If the system charge is too low, this can cause the symptoms you’re describing. A low charge is almost always caused by a leak in the system. If the charge is normal, but does not change with compressor operation; this is a sign the compressor may not be functioning properly. If you would like to have this checked, a certified technician from YourMechanic can come to your car’s location to diagnose the AC system and perform the needed repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I view the average fuel?
The average fuel displays the average fuel economy that your vehicle has received since the last feature reset. To view this feature, follow these simple steps: 1. Press the Up/Down buttons until Trip 1 or 2 is displayed on the...
Instrument cluster gauges not working
Hi there. If your instrument cluster stops working intermittently, then it may have a bad circuit board or a bad connection. I have found issues related to the ground connection in the instrument cluster. Most of the time, this connection...
Car stalling at stops and red lights
From the description, it appears that there are a few things going on with your Chevy Impala. A leak in the power steering system will cause the power steering pump to make noise and eventually fail. There are also a...
The car suddenly couldn't start, it cranks well
When a fuel pump fails, it is known to happen randomly and can give the same symptoms you are describing. My first recommendation would be to have your fuel pressure checked by a certified professional to determine whether or not...
Had the tires rotated and now there is a slight jerkiness in the steering at low speed during turns.
I believe your problem is as simple as having your tires re-balanced and having an alignment done on your car. I wouldn't go too far in depth with this issue at this point because it doesn't seem too serious at...
What is the cost to cut a new ignition key? I live in Lincoln, NE if that matters.
I would suggest calling a locksmith and explain the problem that you have to see if they have the capability to help you out. Unfortunately, I do not think they can but it will not hurt to give them a...
I have a 2002 Chrysler 300m that had been sitting up for a year. I replaced the rack and pinion but when backing up steering is hard. Plus I have a P0740 code.
Hi there. The issue with the steering being hard seems to be with the pump still having air in it. Start the engine and open the bleed valve slightly. Turn the steering wheel several times from left to right and...
My truck runs rough/stalls when I turn at low speed and low rpm.
Hi there. In most cases, this will occur due to an obstruction of fuel or the inability to correctly mix the right ratio of fuel to oxygen. This could be due to dirty or clogged fuel injectors, throttle body or...
Why would the bolts that connect the CV To the wheel come loose
The CV axle end goes through the wheel hub and hub bearing and is held on to the wheel hub by a large nut that is very tightly torqued. There are no bolts involved, only that one nut. The wheel...

Related articles

A Buyer’s Guide to the 2012 Fiat 500
The The 2012 Fiat 500 has reentered into the U.S. market after being absent for the past 27 years. The Fiat 500 is sportier than the Mini Cooper, yet a step above the Toyota Yaris. When compared to the Cooper,...
A Buyer’s Guide to the 2012 Chevrolet Silverado Hybrid
If If you’re looking for a half-ton pickup truck that also gets great gas mileage, look no further than the 2012 Chevrolet Silverado Hybrid. While it has the towing and carrying capacity you’d look for in any regular truck, it...
How Does a Car Air Conditioning System Work?
Auto air conditioners serve well on hot summer days to make driving more pleasant by cooling the air and removing excess moisture in the car.