CLK-Class (W208) 1998-2002: CLK 200, CLK 230K, CLK 320, CLK 430 [Coupes & Cabriolets]

Need help with A/C problem

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Old Aug 28, 2003 | 05:06 PM
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From: Bay Area, CA
01' CLK55
Unhappy Need help with A/C problem

i have an ongoing problem w/ my damn A/C. When i start my car, the a/c works perfectly and coldly....after about 3 minutes, i believe the compressor shuts off because the air is not cold anymore. The speed at which it is coming out is not affected, it's just not cold anymore. And since it's been extremely hot lately, i've had to end up driving my 540i during the day (which i hate, but the a/c is COLD) and my clk at night time. Any help will be appreciated.

oh yeah....one more thing, i took my car to get it recharged with a/c coolant, and they told me it was pretty much full already, and the pressure was good.

thanks
AL
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Old Aug 28, 2003 | 05:56 PM
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w211 & w124
I would have the dealership look at the condenser unit. Definitely something wrong in there.
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Old Aug 28, 2003 | 05:56 PM
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Re: Need help with A/C problem

Originally posted by clkal
i have an ongoing problem w/ my damn A/C. When i start my car, the a/c works perfectly and coldly....after about 3 minutes, i believe the compressor shuts off because the air is not cold anymore. The speed at which it is coming out is not affected, it's just not cold anymore. And since it's been extremely hot lately, i've had to end up driving my 540i during the day (which i hate, but the a/c is COLD) and my clk at night time. Any help will be appreciated.

oh yeah....one more thing, i took my car to get it recharged with a/c coolant, and they told me it was pretty much full already, and the pressure was good.

thanks
AL
Sounds like The EVAP Temp sensor is Bad...I Have Replaced several..Do a Search..Also You Can Access the Sensor Info from the A/C Controls ..If The A/C Evap sensor is defective
It Will Read incorrect and Shut off the A/C
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Old Aug 28, 2003 | 06:51 PM
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how do you do a "search"?
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Old Aug 28, 2003 | 07:58 PM
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MARK CUMMINS's Avatar
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Originally posted by clkal
how do you do a "search"?
https://mbworld.org/forums/search.php

If The Car is Under Warranty ...Take it in!
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Old Aug 29, 2003 | 06:04 PM
  #6  
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the car is at 74000 miles , unfortunately....and I do NOT want to pay by the hour for them to diagnose the problem. Just wondering if anybody in this forum has had a similar problem before.


AL
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Old Aug 29, 2003 | 06:24 PM
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MARK CUMMINS's Avatar
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Originally posted by clkal
the car is at 74000 miles , unfortunately....and I do NOT want to pay by the hour for them to diagnose the problem. Just wondering if anybody in this forum has had a similar problem before.


AL

DO a SEARCH on Climate Control Opperation
You WILL Find out HOW YOU can Do a Diagnosis on YOUR car From YOUR A/C Controls....Then YOU WILL See the Numbers on the Evap Temp sensor...If Its defective the readings will be Very High!
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