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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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AC turns off at idle and generally inconsistent when drivingViews : 474 Replies : 5Users Viewing This Thread : |
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May 31st, 2022, 07:09 | #1 |
New Member
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AC turns off at idle and generally inconsistent when driving
2009 c30 manual 2.4l t5
Now that its hot again I noticed my AC giving me issues. Two days in the past week when I arrived at my destination (I had a few min to kill so I kept the ac on) the AC stopped working. Strangely, it didn't stop working when I was idle at lights during my drives. Today I sat idle for 10 minutes waiting for someone and the AC didn't kick on during the wait nor after I resumed driving. But when I turned the engine off and on the AC kicked on right away. During this ride I paid more attention to my AC and noticed it blowing really cold right after starting the engine but the effectiveness went down during the ride. It seemed like it would fluctuate between blowing colder and much less colder. I realized this behavior seemed to be in line with the way it acted during my drive last week as well. Could this be due to the clutch gap I keep reading about? I replaced the condenser two summers ago and recharged the system. Could it be possible theres a leak in the system that could be causing this type of behavior? |
May 31st, 2022, 08:21 | #2 |
Volvo S40
Last Online: Today 08:39
Join Date: Mar 2015
Location: Chichester
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This is a common issue with these cars. Its the AC clutch gap issue. there are various different ways to solve this.
The clutch gap is out of tollenrance causing slip which is why you then lose your AC. You can either get a new unit. I had the same issue, and checked the clutch gap and solved the issue with zip ties. Over 2 years now since the fix and still fine. If you do this, you will need to ensure that you AC engages and disengages correctly.
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May 31st, 2022, 08:31 | #3 |
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Last Online: Jun 16th, 2023 17:55
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Thanks. I was going to try the zip tie method since it seemed easy and I already have zip ties.
What do you mean by this quote? Before or after I attach the zip ties should I check to make sure it engages or disengages? How do I check if its working properly? Under what conditions should it engage and disengage normally? |
May 31st, 2022, 09:19 | #4 | |
WowIcanwriteAnythingHere!
Last Online: Jun 6th, 2024 16:57
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Quote:
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Jun 1st, 2022, 07:35 | #5 | |
Volvo S40
Last Online: Today 08:39
Join Date: Mar 2015
Location: Chichester
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Quote:
You can only pop on zip ties depending on the clutch gap you have. You will need to get a feeler guage (I think thats what its called) The gap needs to be within a certain tolerance, but I cant remember exactly what that was at the moment. Which ever route you go down, you need to ensure that when you turn on the AC, the clutch engages correctly. You also need to ensure that when you disengage your AC via the button, that the clutch disegages correctly leaving enough of a gap. You can easily do the above but keeping the wheel of after your fix and just turning the AC on and off. You should then see the AC clutch plate engage and disegage correctly.
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----------------------------------------- Current: 2009 Volvo S40 T5 Progress Thread: https://www.volvoforums.org.uk/showthread.php?t=271945 Previous Volvo: 2008 S40 SE Lux R Design 2.0D |
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Jun 1st, 2022, 11:49 | #6 | |
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Quote:
Maximum allowed 0.5mm According to VIDA
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Present: 2009 Volvo V50 1.6D DRIVe SE Past: 2004 Volvo S40 T5 SE |
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