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Related Mercedes Questions
Heater headache, 1984 300D. Fan blower always works.
Heater headache, 1984 300D. Fan blower always works. Intermittently just cold/cool air coming out.Sometimes gets worse, but the intermittency doesn't relate to the engine temp, RPM, idle, road velocit… read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,010 satisfied customers
Heats blowing out of defroster and side vents,while cold is
hello, heats blowing out of defroster and side vents,while cold is comingfrom center vents, compressor working ,replaced blower motor ,monovalve,vacuum tree under dash on 91 300e,ac still working inte… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Continuing to have "no heat" problem in my 560SEL.
Continuing to have "no heat" problem in my 560SEL. I replaced the monovalve, didn't help. I have taken the assembly out to diagnose and I found that there is some sort of plastic valve in the bottom o… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Marty, Further diagnosis on the heater problem in my 91
Hi Marty, Further diagnosis on the heater problem in my 91 560SEL. When the system is "on" there is no heat, and air blows cold. When it is "off" warm air comes through the side vents and floor vents … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1986 560SEC: Climate control system inaccurate. To get a/c
1986 560SEC: Climate control system inaccurate. To get a/c wheel has to be turned to about the 18 number. When heat is needed the wheel has to be continuously turned warmer or within a few minutes the… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Mercedes-Benz 420SEL: Good morning marty, i have the 1991 420sel
Good morning marty, i have the 1991 420sel and the heat was intermittant, since this happened before on a ssimilar car i ordered a new monovalve. in the past it is ususally caused by the rubber being … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
280SL: Have '83 280SL with heater that works fine at idle and
Have '83 280SL with heater that works fine at idle and slow speeds, goes cold on highway. Rebuilt monovalve - didn't help. Any ideas? It's cold here.… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
mercedes 560sl: 1987 mercedes 560sl, heat was intermittant,
1987 mercedes 560sl, heat was intermittant, only blowing warm on defrost. replaced monovalve. Now only blowing cold air. Found A/c compressor cycling even when dialed to heat. Now only blowing extreme… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1987 560sel: climate control..mb 380 SE, 420 sel..ac
I have a 1987 560sel, 112,000 miles....ac blows cool...compressor replaced.receiver drier replaced . climate control unit replaced...air never gets cold...I have a 96 Ford F150 with 286,000 mile that … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
89 560sel: nothing but cold air from my heater now..somtimes..shutting
i have an 89 560sel. i get nothing but cold air from my heater now. I can stop the engine and open my door and somtimes hear a door shutting and then the heater works. some vacuum actuated door is not… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Heater..vaccume leak and mechanice..thermostat..climate control
Heater does not work even though all fan control do. Do not have a vaccume leak and mechanice replaced the thermostat; is the next logical step the replacement of the climate control? The model is a 1… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
I have a 1995 e320 six cyl. The blower fan stopped working
I have a 1995 e320 six cyl. The blower fan stopped working a few day ago. The heater seems to be O.K. However the aluminium pipes for the air conditioner are fridgid cold.… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1993 300se: heater blows cold air from the middle vents and warm
sometimes the heater blows cold air from the middle vents and warm from the outer vents on my 1993 300se… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1983 Mercedes: TD..sedan..I took my car to Meineke to repair the a/
1983 Mercedes TD sedan. One year ago I took my car to Meineke to repair the a/c. They told me that I needed to replace most of the a/c components. This included the dryer, compressor, and expansion va… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
The blower will not blow in cold air to the cabin..hot air
Hello there I have a MB 320 E (W124). The blower will not blow in cold air to the cabin. It will do the opposite when the cabin need hot air. The compressor is working. What is wrong? / Erik… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
I get a new compressor (not rebuild) put a new expansion valve..flush
Dear sir: Sorry to bother you. I have a 300 cd that was retrofitted to 134a the a/c was warm. I get a new compressor (not rebuild) put a new expansion valve ,new drier, flush several times till clean … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1987 Mercedes: accelerator..its like the heater fan blows constantly
I bought a used 1987 Mercedes 560SEL. It seems as though the accelerator is somehow stuck because it wants to take off by itself. Also, it's like the heater fan blows constantly. Can you tell me what … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
2000 SL 500 and the ac has good freon..fan blows..heater works
I have a 2000 SL 500 and the ac has good freon but still doesn't get reall cold.I set the temp on different settings and I get the same air temp.It doesn't help to put on the recirculating mode.The fa… read more
tech4benz
tech4benz
Master Certified Mercedes Technician
Associate Degree
196 satisfied customers
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MB Paul

MB Paul

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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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