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Related Mercedes Questions
When I hold down the defrost button and the recycle air
When I hold down the defrost button and the recycle air button they do not flash they stay solid I still cannot get my air conditioner to reset still blowing hot air … read more
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Pete
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General auto certifications
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AC is not cooling on a 2001 E430. No error codes but
AC is not cooling on a 2001 E430. No error codes but condenser fan is not working. No voltage on the pin connector by the high pressure port. … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
Heater blows cold air. I have replaced the monovalve, sent
Heater blows cold air. I have replaced the monovalve, sent the AC/Heater control switch out for testing and it came back as good. When the car is idling, the air is hot, but cold when driving. I wonde… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
I'm having issues with my 1989 Mercedes 420 SEL heater. Do
I'm having issues with my 1989 Mercedes 420 SEL heater. Do you have someone that is knowledgable?… read more
Marty
Marty
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Associate Degree
30,535 satisfied customers
04 c230k ac off light wont go off. compressor wont run.
04 c230k ac off light wont go off. compressor wont run. replaced compressor and condenser and cant get light to go off to run the compressor. tried the defrost/ recirc thing and nothing happens … read more
sprinkles08
sprinkles08
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High School or GED
19,037 satisfied customers
My name is ***** *****, I have been going through some pain
Customer: My name is ***** *****, I have been going through some pain with my 1985 300Sd heating No heat for the driver: Replaced teh following. Monovalve, water pump, aux water pump. disconected the … read more
sprinkles08
sprinkles08
Technician
High School or GED
19,037 satisfied customers
1985 USA Mercedes 380SL Climate Control (Heat): Car runs
1985 USA Mercedes 380SL Climate Control (Heat): Car runs very well (thank you, Marty!). However, no heater operation. I have already removed the dash, replaced all vaccuum solenoids and lines, repaire… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
Slk230: Model:2001 slk230Issue: Compressor will not engage
Model:2001 slk230 Issue: Compressor will not engage unless the outside temp is above 77ish Steps taken: 1) changed the evap temperature sensor. When the compressor engages (over 77 degrees) the ac wor… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
300e: I have a 90 300e 2.6 having a similar issue to the one
I have a 90 300e 2.6 having a similar issue to the one described here on this post : http://www.justanswer.com/mercedes/86iu9-e300-2-6-91-300e-2-6-w124-hot-air-blows.html blows hot air at defrost vent… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
Mercedes Benz 300DT: I have a 1985 123 Body style, 300 DT Mercedes
I have a 1985 123 Body style, 300 DT Mercedes Sedan that I am experiencing Heater problems with . With engine running and car setting the heater seems to work ok . Climate Control is on Econ button in… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
230 kompressor: climate control..it blows 40 degree cold air..wheels
1999 c-230 kompressor when climate control is set for heat it blows 40 degree cold air rather than 130 hot air, blower works fine, when the control wheels are moved to the max for heat then it makes r… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
1980 Mercedes Benz 300sd: a/c heater servo (reman)..water pump
I have a 1980 Mercedes Benz 300SD Turbodiesel w116.120 engine 617.950. I have had a problem regarding lack of heat, I have replaced the a/c heater servo (reman) and a auxillary water pump. I have alwa… read more
Expert
Expert
drivers side heater..automatic..passenger side..air conditioning works
The drivers side heater does not blow hot air when the automatic climate control system is used. It works fine on the passenger side. The air conditioning works fine with the climate control system on… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
AC..vents..My local MB mechanic replaced 4 actuators last month
We have a stunning1991 560SEL Problem: The AC and Heat vents do not appear to be delivering the right kind of air where it is needed. My local MB mechanic replaced 4 actuators last month--same problem… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
Mercedes: SEL..outside temp..degrees..the heat blows cold no matter
Hi, I own a Mercedes 420 SEL (W126) Whenever the outside temp is about 7 degrees celsius or below, the heat blows cold no matter how warm the engine gets. I had the "heat controller" replaced ($800!) … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
1991 350SDL: that is running hot and I am worried about it..red line
Rob: I have a 1991 350SDL that is running hot and I am worried about it. I have two othersa and they both hover around the 80 degree mark. This one is close to the red line area and is just under the … read more
Rob
Rob
Diagnostic Technician
High School or GED
196 satisfied customers
Climate control works fine with a/c but intermittenly with heater on
(NNN) NNN-NNNN-climate control works fine with a/c but intermittenly with heater on. Mono valve has been replaced. Does climate control need to be replaced?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
1980 450sl: the ampliper , hot water control valve &..bled..mb..vaccum
i have a 1980 450sl that the a-c is blowing cold air , the dial is on max heat. i have replace the ampliper , hot water control valve & bled the heater system per mb instructions. i have tested the va… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,535 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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