EC button stuck on
Senior Member
Joined: Aug 2005
Posts: 433
Likes: 0
when the EC button is lit, it means that there is NOT enough FREON or a problem with the A/C compressor.
best have it leak-tested, but im sure it might be the dryer or some check valves.
Your A/C will not work until its looked at.
Good Luck
best have it leak-tested, but im sure it might be the dryer or some check valves.
Your A/C will not work until its looked at.
Good Luck
Senior Member
Joined: Feb 2007
Posts: 447
Likes: 4
From: Orange County.CA
12E350, 12ML350, 08C350
I had my EC button lit on whenever I start my car, turn out R134 gas is low, cost me $275.00 to recharge , reset the A/C computer @ the dealer (regular automobile A/C shop does not know how to reset the computer, after recharge the gas). Now it's COLD (before it''s just the FAN).
Thread Starter
Almost a Member!
Joined: Sep 2005
Posts: 66
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From: Wading River ,NY
2002 CLK 430
hey , got my AC recharged.. It took about a pound an a half. It blows ice cold...but after driving it and then turning the car offthe EC button is coming back on .While driving it I am able to turn off everything completley and turn the EC off and on . I held down the rest button and turn the ignition on and off which seems to turn off the EC button but it comes back on . Is there another way to reset the climate control?Does it take running the AC a few times for the computer to reset inside. My mechanic said there were no leaks
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
hey , got my AC recharged.. It took about a pound an a half. It blows ice cold...but after driving it and then turning the car offthe EC button is coming back on .While driving it I am able to turn off everything completley and turn the EC off and on . I held down the rest button and turn the ignition on and off which seems to turn off the EC button but it comes back on . Is there another way to reset the climate control?Does it take running the AC a few times for the computer to reset inside. My mechanic said there were no leaks
Greg
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Junior Member
Joined: Apr 2004
Posts: 32
Likes: 0
From: NYC
2000 clk430
You dont have a leak.. try this put your key into second stage press the button turn key all way to off, wait three seconds then back to stsage 2 press ec button should go off....crank vehicle and your ac will b working
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Joined: Apr 2005
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From: SCV SoCal
2002 CLK430
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
Greg
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Joined: Sep 2019
Posts: 1
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99 CLK 320
