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Old 07-11-2010, 09:34 PM   #1 (permalink)
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Date registered: Jun 2010
Vehicle: 96' E320
Location: Fleming Island
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AC Values, Please HELP!

Well F*** my life, my ac is out just like half the people on this board. For some time, just the passenger side was cold and the drivers side was hot, recently both sides have been hot. Now both sides are the same temp and i have no idea what the problem is. I had one DTC code for the outside temp sensor, but i fixed the problem so no more code. So i gathered my sensor value codes and i need someone to help me diagnose my problem.
1-33
2-34
3-43
4-44
5-35
6-92
7-08
8-42
9-0
10-0.8
11-2.3
12-4.3
20-0
21-05
22-00

Thats all i wrote down, i dont know if you wanted them all, but #1 is suppose to be the inside cabin temp, i dont know if thats suppose to be in celsius or F but it seemed kinda low?? The ac compressor does engage and i do not have any EC light on. From what ive read #7 is the freon level and mine seems LOW. Does anyone know what the normal freon level SHOULD be?
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Last edited by yoffer; 07-11-2010 at 10:00 PM.
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Old 07-11-2010, 09:59 PM   #2 (permalink)
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Don't know if you know of this website pretty helpful, you can submit your values also..hope this helps

also info in the HELP DIY'S section at the top of the forum )

Air Conditioning Diagnosis | EClassBenz.com

Last edited by KADE; 07-11-2010 at 10:33 PM.
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Old 07-11-2010, 11:28 PM   #3 (permalink)
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Quote:
Originally Posted by KADE View Post
Don't know if you know of this website pretty helpful, you can submit your values also..hope this helps

also info in the HELP DIY'S section at the top of the forum )

Air Conditioning Diagnosis | EClassBenz.com
Ive read through most of these and i still dont have a conclusion, but thanks for trying. If the system was low on freon, then why doesnt the EC light up? Ive cleaned the duovalves and they slide freely. Like i said before, the compressor clutch engages, but both the passenger side and drivers side are hot air.
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Old 07-12-2010, 12:47 AM   #4 (permalink)
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Date registered: Jul 2006
Vehicle: 1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 1986 190E
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I don't know Flemming Island but buddy you need a recharge to start things off.. a shop recharge will also pull the old refridgerant and junk out of the system.

Keep the beat !
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Old 07-12-2010, 05:42 PM   #5 (permalink)
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This is from Star Tek it tells what each value is. I would do what fabbrisd1 said it just get it charged and work from there.

STAR TekInfo
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Old 07-13-2010, 09:07 AM   #6 (permalink)
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Mechanic says ac compressor is working but its not??

Ive been having a ac problem for a few weeks now and i need some advice. I took the car in to have the system recharged, but the mechanic says the compressor is working but its not. The compressor engages when its turned on, but he says its not compressing. Is this possible??
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Old 07-13-2010, 09:13 AM   #7 (permalink)
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Check if EC (economy mode) is turned on. When I got my Merc the EC mode had been turned on and so the compressor would turn off, but I couldn't get the EC to disable so my uncle did it manually through the glovebox (not sure what exactly he did)
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Old 07-13-2010, 11:51 AM   #8 (permalink)
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No the EC button is not on.
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Old 07-13-2010, 12:31 PM   #9 (permalink)
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Yes - when the refridgerant is too low, then compressor will not "compress" as a safety feature. to protect the compressor

Have the system checked for leaks, then if no leaks move to a recharge.
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Old 07-13-2010, 12:38 PM   #10 (permalink)
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Quote:
Originally Posted by fabbrisd1 View Post
Yes - when the refridgerant is too low, then compressor will not "compress" as a safety feature. to protect the compressor

Have the system checked for leaks, then if no leaks move to a recharge.
Doesn't it also cut off if there is too much pressure from the oil and refrigerant?
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