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  #16  
Old 05-22-2004, 11:27 PM
BPH BPH is offline
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Get it fixed?

I'm having the same problem...won't go off of EC. 1999 C280 2.8 with electronic climate control. Did you get it fixed!

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  #17  
Old 05-23-2004, 09:51 AM
LarryBible
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Hawkman,

It would be most helpful to know what year and model MB that you are working on.

Have a great day,
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  #18  
Old 05-23-2004, 12:19 PM
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The first thing to do with most MB's with a EC button is to perform the self diagnostics available at the display.

Read this article to see how and find the appropriate lists of values and codes where ever: http://www.continentalimports.com/ser_ic40142.html

The service bulletin is for the pressure switch. If it is bad it will show up on the actual values. The most common problem is a bad evap temp sensor act value #5 on most systems. If the value is at 150 or above the compressor won't work.

I have diagnosed this more than once by cell phone with a customer driving his car, just push the buttons and look at the value and stop by when you have a half hour and we'll fix it for you.

The last one I did I diagnosed in the parking lot with the sensor already in my hand. I replaced it and it still wouldn't work and the EC light was on. I have the pressure switch as I have read the bulletin (have never seen the problem but I am ready - buy the evap sensors two at a time). Brought it into the shop and read the pressures turned out the bozo had dumped an extra pound and a half of refrigerant into it before he brought it in. Luckily it only cost him a little extra. He made an interesting problem out of a simple pattern failure. Tripled his bill, he did.
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Steve Brotherton
Continental Imports
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33 years MB technician
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  #19  
Old 05-25-2004, 10:56 PM
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Location: Sebastopol, CA
Posts: 324
The last post by Sokoloff on this thread may help.

210 chassis climate control problem

Dan

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