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Marty, I am having trouble getting the car to be toasty warm
Marty, I am having trouble getting the car to be toasty warm reliably, everytime. The seats do heat up - but even there, there are times when it is really, really warm/hot, and other times when it is … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I have a 2012 CLS 550. Battery lights came up while I drove.
Hello, I have a 2012 CLS 550. Battery lights came up while I drove. 5 minutes later car dies. Found out my alternator was toast, I had it replaced, things looked good. But my climate control unit does… read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,275 satisfied customers
We have a 2007 c230 mercedes with no ac fan blower motor. we
We have a 2007 c230 mercedes with no ac fan blower motor. we have codes b1300 and b1301 codes in the climate system. The fan and regulator have been replace and the actuators wont normalize Every once… read more
Lou Palomino
Lou Palomino
associates in automotive technology
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1995 e420, ac not blowing cold and the Freon pressure was
1995 e420, ac not blowing cold and the Freon pressure was checked with dye and passed no leaks good pressure. it blows cold in cold weather but in warm temps it does not.. … read more
Lou Palomino
Lou Palomino
associates in automotive technology
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The climate system on my Benz is so schizoid. Has been an on
The climate system on my Benz is so schizoid. Has been an on and off problem forever. I replaced the blower fan which stopped the fuses from blowing, but it's still neurotic. Here is an example: Last … read more
Pete
Pete
Mercedes Mechanic
General auto certifications
40,897 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
30,558 satisfied customers
Mercedes-Benz 300SL: I replaced the aux. cooling fan relay
I replaced the aux. cooling fan relay , N.G. cooling fans still run when ign. sw .turned on. I notice the climate control temp. indicator fluctuates.Also when you set control to either heat/cool it au… read more
Marty
Marty
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Associate Degree
30,558 satisfied customers
Mercedes-Benz 500 SEC: Climate control unit replaced due to
Climate control unit replaced due to blower fan quit working. Installed reman-climate control unit, fan and controls worked fine for two days. Yesterday fan quit working again. Car is a 1985 500SEC eu… read more
Auto Psychic
Auto Psychic
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Bachelor's Degree
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1998 c230: car cuts..climate control..no check engine light...blowing
1998 c230-car cuts off when i start the climate control fan. no check engine light. fan is blowing with the key in the start position. runs great until I engage the fan. when i engage the fan car shud… read more
Auto Psychic
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88 300te: replaced the climate control unit..unhooked..water pump
I have an 88 300te wagon. the heat stays on constantly. i have replaced the climate control unit, clamped the mono valve and unhooked the aux water pump. nothing seems to make it stop. as soon as you … read more
Hipo64
Hipo64
Mercedes Technician
High School or GED
444 satisfied customers
1983 300sd: ac compressor..blew..fuses to my climate control unit
I have a 1983 300sd. My ac compressor went out. Before I had it replaced it blew any number of fuses to my climate control unit. The unit now doesn't work although the fuse is ok. I'm thinking that th… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
83 300sd: ac compressor, dryer..expansion valve..valve replaced
I have an 83 300sd. Recently had the ac compressor, dryer, expansion valve replaced (old compressor died). Converted to 134. When charged the system low side produces high pressure readings and the hi… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
vent..fan is off and the fan is not blowing temp-setting is set..flow
Defroster will not turn off. Hot air is coming out of the defroster vent, defroster is in the off setting and the fan is off and the fan is not blowing temp-setting is set to cold . But hot air is sti… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1987 260e: new battery..klima & Idle/abs relays..Climate control
Hello, I have a 1987 260e with 90k miles. Previous owner installed new battery backwards shorting out many eletrical parts. I have replaced the Klima & Idle/ABS relays and the Climate control head uni… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
94 S420: Benz..nice cold air in the summer..hot air..windshield
I have a 94 S420 Benz. When I use the A/C, it works fine and blows nice cold air in the summer. Now I'm trying to use the Heat for the winter but the hot air is blowing really soft and will only blow … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
The heater blow hot air when idling in park..faster..SE
Why does the heater blow hot air when idling in park, but turns to cold once you get going to about 30 mph and faster? 1985 380 SE… read more
Rob
Rob
Diagnostic Technician
High School or GED
196 satisfied customers
i have a 1980 mb 450sl. the acc servo was just replaced. freon added.
i have a 1980 mb 450sl. the acc servo was just replaced. freon added. ac was working fine. but when i switched to defrost, i''m just getting hot air from the side vents even with the temp dialed to 65… read more
VinnievegaMBtech
VinnievegaMBtech
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Vocational, Technical or Trade Scho
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Clutch..it would engage, a wire was jumped and compressor started
I had a new A/C clutch put on my MB E-320. It did not engage and the consensus was that the compressor was low on Freon and need evacuated and re-charged. Just to make sure it would engage, a wire was… read more
RIP
RIP
Lead Technician
Vocational, Technical or Trade School
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Meet the Experts:

MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

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Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

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Matt

Matt

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Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

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Hipo64

Hipo64

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Work and diagnose electronics on daily basis.

Tim Mohr

Tim Mohr

ASE MASTER TECH

283 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

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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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