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#21
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#22
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Quote:
2001 3.0i "AC Pressure sensor - in AC line very close to the lower radiator hose. Measured in Foxwell: Ignition ON, engine stopped, AC off, cold: 1.25V ... connector removed: 5.00V Engine running: 1.24V Engine running, AC on: 1.76V, rising ... connector removed: 5.00V"
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2001 X5 3.0i, 203k miles, AT, owned since 2014 |
#23
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Now I started the engine and the air conditioning no longer works, the voltage is 1.2V, then I gave the gas twice to about 3000rpm and it worked and the voltage is
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#24
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Quote:
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#25
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Now it behaves differently (maybe because it's colder outside) Basically, the air conditioning voltage is 1.8V and I turned off the air conditioning on the button the voltage drops to 1.2V. I press the button again to turn on the air conditioning, the voltage remains 1.2V and does not work, then I give the gas up to 2500-3000rpm once and the voltage goes to 1.8V and the air conditioning starts working
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#26
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It would appear the sensor is working and sees enough pressure. You need to confirm if the clutch is engaging when you press the snowflake. Symptoms suggest the clutch is not grabbing
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#27
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How, to listen just under the hood or?
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#28
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You can see the compressor from top side. Have someone push the A/C button on and off. You should hear it click. Plus notice RPMs change. On other vehicles the clutch will engage with the engine off. I'm not sure about BMWs.
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#29
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Watch the clutch while somebody presses the snowflake. Take a slomo video even better.
It can be tricky to see the inner part spin since the outer pulley off course always spinning. Also: in software you should be able to read status of the clutch. I suspect the clutch air gap is off and not grabbing or variable displacement compressor is stuck at zero displacement until you rev. You need to figure out if the clutch is grabbing
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#30
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Problem with A/C
The clutch catches when I turn on the snowflake
Aux fan not work https://youtube.com/shorts/kVLFzk-FyRk?feature=share Sent from my iPhone using Tapatalk |
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