Question about 1999 Mercedes-Benz E-Class

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Mercedes E300TD - Air conditioner stopped working suddenly. A couple of weeks later,  on the control panel, the EC light stays on.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: sunroof wont close manually with tool

did you look at its fuse

Posted on Aug 13, 2009

Testimonial: "thank you for input, i checked fuse ok. suspect motor."

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SOURCE: can't turn off EC on temperature control on a 1997

Press the O button to shut it off or any other button. Usually when the E/C sticks on its an A/C charge or sensor issue so check that also.

Posted on Apr 16, 2010

Testimonial: "Thanks....Will see if that works"

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Having multiple intermittent problems

I guess the overall answer is yes it could be the ECM.
Code 16 is high or low system battery voltage.
Code 21 and 22 are both for the throttle position sensor.
And code 43 is for the electronic spark control which controls engine spark timing.
The ECM grounds various relays to make things happen such as turning on the cooling fan. So a faulty ECM could cause all of the symptoms. But so could a wiring problem in one of the harnesses.
Especially a ground problem somewhere.
If the alternator suddenly starts overcharging the system the ECM can shut down the car to protect the circuits. Unusual, but possible.
This info may not help much, but somebody is going to have to test the circuits when the engine dies or when the symptoms happen.

Jul 11, 2012 | Cars & Trucks

1 Answer

Ac problems; warm air blows, did have ac check for leaks and system has a pound of refrigerant but the tech says the condenser is not running to complete job? Does the EC Light always stay on after...

Probably in the heater controls they are not moving far enough to block the warm air from the heater radiator check if the controls are moving all the way and are not moving back slightly when turned to cold.

Aug 04, 2009 | 1999 Mercedes-Benz E-Class

1 Answer

Air conditioner stopped working on my 2011 e320

This is difficult to answer without my head under the bonnet or a question by someone who just needs a second opinion ,the fault could be anything from a gas leak to a faulty sensor with all and everything in between,sorry i could not much help but these cars with regards to the AC are inter related to other controls especially with climate control ,it could even be the operating panel faulty so the best advice i can offer in respect to lack of information is to ask a friend or two to recomend a local mechanic and ask them to have a look ,could be a simple job or an expensive one iam afraid

Dec 27, 2011 | 2001 Mercedes-Benz E-Class

1 Answer

What is the ec button for? my air will not blow cold and the ec button is staying on

EC stands for air conditioning. Have you charged the air conditionning with gas. is the air conditioning pump making a clicking noise when you press the EC button.

May 30, 2011 | 2001 Mercedes-Benz S-Class

1 Answer

I have a 1992 Mercedes s500 which occasionally the rev counter suddenly jumps up & down then stops completely then ASR light comes on and the car goes into ''limp mode'', then after a few minutes it...

Suspect idle control motor, although mass air flow sensor problems have sometimes been related to idle surge. Have pcm codes pulled for further diagnosis.

Dec 25, 2009 | 1992 Mercedes-Benz Mercedes Benz S Class

1 Answer

Problem with the EC light staying on after repairs were made to the air conditioning system. Can press the EC button and hold for a few seconds and the light will go off and the compressor will kick in....

The pressure/ temp switch on the reciever drier is what the system uses to determine if the system has enough freon. Most likley cause assuming system is properly charged. You can pull actual values through the a/c push button module. If you cannot see an erratic value your best bet is to have the system scanned for codes.

Sep 08, 2009 | 1998 Mercedes-Benz C-Class

1 Answer

Air conditioner failing

You need to refill the A/C. It works on pressure in the system if its below operating pressure it will not work at all. Buy a refill kit and follow instruction.

May 14, 2009 | 1999 Volkswagen Passat

2 Answers

Abs light stays on & A/C stopped blowing cold air

The BCM (body control module) is the problem, have it replaced, this is a common issue on your van.

Aug 12, 2008 | 2000 Dodge Caravan

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