Question about 2006 Volvo S40
I have the same issue. My 2006 s40 had a great ac. Then all of the sudden, it starts out cold then starts to blow hot air after a little while. I turn it off, let it sit for a little while, and then turn it back on. When I turn it back on, it is cold again. Repeat. I called the dealer and they told me they would charge me $130 just to check it and then the money wouldn't be applied to any repairs. So, I have been putting it off until I get a service. Everyone keeps saying it is the freon but I don't know.
I had the very same problem with my 2004.5 S40. I put with it for more than a year. I went to many A/C technicians all requesting hundres of $$ to look at it. Until I went to this guy, he look at it determine that the problem was the magnet that was not doing contact properly. Charge me $20.00. A/C is working fine( for the last 6 months)
Posted on May 26, 2010
It's the compressor... plain & simple. I have the exact same problem with my S40. Must have been a defective batch of AC compressor units for this year & model. Your problem is identical. Air worked fine for first 75,000 miles, and then "poof" all of a sudden the system will run with cool air for first five-ten mins., and then it's gone.
The issue is that the compressor is being forced off due to over-heating. You may have noticed that it tends to blow cool for longer periods of time when it's cool outside. In other words, the warmer it is outside, the sooner the unit will turn off.
In summary: don't waste another dollar on diagnosing this issue. Use it to put toward a new compressor- about $400 (new)
Posted on May 07, 2010
If you have a leak in the system all the freon would leak out. Purchase a can of leak detector put in engine. Directions on how is on the can. If this shows a leak have lead repaired and new freon added. Could be compressor going out. Bought one on Ebay for $100 vs $300 from Auto Zone.
Posted on Jun 29, 2009
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Posted on Jan 02, 2017
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