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Aircon Clutch

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Old Nov 29, 2014 | 07:20 AM
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2002 mercedes e320 w211 petrol
Aircon Clutch
Hi All. Mr aircon suddenly stopped blowing cold air. Had the gas checked and refilled. Cleared all fault codes. The clutch on the compressor is still not activating. Checked all fuses, ok. The clutch activates when direct power is fed. Will appreciate ideas on where else to look. Don't know if there is a relay to look for.
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Old Nov 29, 2014 | 07:21 AM
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2002 mercedes e320 w211 petrol
Sorry should have said, my aircon, not Mr
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Old Nov 29, 2014 | 11:29 AM
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2002 mercedes e320 w211 petrol
Yes only 1 code which was cleared. A32n1(blower regulator). The blower motor is operating perfectly though.
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Old Dec 2, 2014 | 08:38 AM
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03 E500 and Corvette
My E500 did not have a clutch on the compressor.
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Old Dec 2, 2014 | 10:00 AM
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2002 mercedes e320 w211 petrol
Took the car to Cool Power here in Durban South Africa. When a direct pulse is placed on the compressor, the aircon worked perfectly fine. Scanned the car, picked up the control panel is faulty. Purchased replacement panel, now if only I can figure how to remove and replace without having to go to an external company.
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Old Dec 2, 2014 | 10:52 AM
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2002 mercedes e320 w211 petrol
No difference in story. I post for assistance as I pick them up. That was the code picked up during the initial scan. Today, the aircon company did another scan and picked up the control panel was faulty. I guess the only way to repair the fault is by replacing each part picked up during the scan. You may recall I recently had a problem with my gearbox. replaced all parts as suggested by members of forums. Finally I had the gearbox company pull down the box and completely overhaul it. Runs like new.
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Old Dec 2, 2014 | 10:54 AM
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2002 mercedes e320 w211 petrol
The new scan was as you suggested I do. Odd, but today it picked up the control panel as the fault
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Old Dec 13, 2014 | 04:33 AM
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2002 mercedes e320 w211 petrol
I replaced the aircon control panel. Replaced the pressure switch. filled with gas. The aircon will not activate. Cleared all fault codes, however one code will not clear (9370 Communication error of AC bus with component R22/3 (Heater Booster)
Any idea where else to look.


Thanks and appreciated
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Old Dec 19, 2014 | 06:49 AM
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2002 mercedes e320 w211 petrol
OK, finally sorted. All those fault codes cost a lot of money for nothing. The green wire from the compressor was damaged. Simple half meter rewire and cold again.


Thanks All, for the suggestions.
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