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  #1  
Old 08-22-2002, 07:21 PM
Keith Lambert
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Question A/C w140 93 400 SEL

My A/C blower just started acting up on my 93 400 SEL. The air is cold enough however, it seems the blower is operating in the low range and the controls to increase the volume of air are not responding. Is this the beginning of the much talked about Evaporator problem in the w140?
Thanks for your help.
Keith
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  #2  
Old 08-23-2002, 01:46 AM
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Join Date: Sep 2000
Posts: 5
It is most likely just your blower regulator if it is still blowing cold.Here is one for auction at Ebay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1852495055
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  #3  
Old 08-23-2002, 07:35 AM
LarryBible
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No, the evaporator indicates its failure by leaking out all the refrigerant. Since you still have cold air, it is not leaking.

The fan is most likely either a worn out motor or the climate control unit.

Good luck,
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  #4  
Old 08-23-2002, 08:44 AM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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blower regulator. there is a update on those. 140-821-83-51


Joe
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  #5  
Old 08-23-2002, 12:51 PM
farena
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I just had to have my Blower Motor Resistor changed ($294 for the part) because of the same problem. It is now blowing fine, however, it appears I may have that evaporator problem as it does not blow cold anymore.
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  #6  
Old 08-24-2002, 12:47 AM
mtan
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a/c blower regulator problem?

my '97 E320's a/c also blows cold, but won't go above 4th position (medium high). JM is probably right-after troubleshooting at MB dealer and after market shop came down to blower motor or most likely blower regulator. BTW-it's probably NOT the control panel, which they'll try to replace at about $900.! What's the replacement mod you're talking about?
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