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Marty, all the Mercedes rubber pieces went in fine. But,
Marty, all the Mercedes rubber pieces went in fine. But, even after following your photos, the hot air would not stop coming in the cabin from the vents whether the lower arms were out, or in, on the … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
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Associate Degree
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Mercedes c230 Kompressor. Vent doors make terrible noise
Mercedes c230 Kompressor. Vent doors make terrible noise when engine first started. Goes away after a few minutes running … read more
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No hot air blowing when heater is on. Replaced the water
Replaced the water pump and thermostat. No more leaking … read more
Lou Palomino
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1985 190e when operating heater and put on dash vents i'm
1985 190e when operating heater and put on dash vents i'm only getting hot air out of side vents and cold air out center vents. is this normal operation?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Marty, The heater on my 560SEL was blowing cold. I checked
Hello Marty, The heater on my 560SEL was blowing cold. I checked the monovalve and sure enough it was torn (see attached picture). I replaced it, but the heater still blows cold. Is there a correct po… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
My c280 1998 AC is blowing cold on left side and hot on
my c280 1998 AC is blowing cold on left side and hot on right side at same rime center is not blowing at all… read more
Billy
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1998 e300d: cold air..vent on driver side..passenger..seats
on my 1998 e300d i get cold air from center airvents, cool air from vent on driver side. on the passenger vent and vent to rear seats, i sometimes get warm air or cool air if car is shut off, on the r… read more
Marty
Marty
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Associate Degree
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1998 600sl: air flow..it says tha In cold weather center vents
We have a 1998 600sl. The center vents say closed in all air flow settings. I noticed in my opeations booklet it says tha "In cold weather center vents receive no air". Is there a sensor that cltrols … read more
Auto Psychic
Auto Psychic
owner
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1982 MERCEDES 300: TURBO diesel..HEATER DOES NOT WORK.
I JUST PURCHASED A 1982 MERCEDES 300 TURBO DIESEL SEDAN. IT LOOKS AND RUNS BEAUTIFULLY. THE HEATER DOES NOT WORK. WHAT SHOULD I EXPECT TO PAY FOR A HEATER CORE IF THAT IS THE PROBLEM. ALL THE FANS AND… read more
Marty
Marty
Mercedes Technician
Associate Degree
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1993 300E: blows cold air..switches..the center of the console
1993 300E - air conditioner blows cold air for 30 or 40 minutes then switches to blowing hot air from everywhere but the center of the console. Nobody seems to have an answer. John Fallows… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
93 400sel: some vents and perfect cold air..blow hot air
my 93 400sel blows hot air out of some vents and perfect cold air out of the front middle and rear vents. What causes some vents to blow hot air when the A/C is on?… read more
mbfixer
mbfixer
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High School or GED
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Mercedes benze: my heat stop coming..fan blows..my heater core
I have a 1998 S500 Mercedes Benze and my heat stop coming out on one side,but the fan blows very strong,they checked to see that there was hot water going through the lines and they were ok.One person… read more
Marty
Marty
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Associate Degree
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I have a 1995 Mercedes c280. I am having a problem with the
I have a 1995 Mercedes c280. I am having a problem with the climate control... the with the temp set low the left side vents blow hot air and the right side vents blow cold air... Also the A/c condens… read more
nelson garcia
nelson garcia
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Vocational, Technical or Trade Scho
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1998 Mercedes 300: Turbo-Diesel..10 minutes..itself and cold air comes
My 1998 Mercedes 300 E Turbo-Diesel has an strange air conditioning problem: it will be working perfectly on a hot day but when the engine is turned off and then turned back on, the a/c system blows h… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
95 Mercedes C220: cold air but both side console vents shoot hot air
I have a 95 Mercedes C220 and having a problem with my air conditioning. The middle console vent shoots out cold air but both side console vents shoot hot air. Per my mechanic, everything else is fine… read more
MBGuru
MBGuru
Bachelor's Degree
282 satisfied customers
Mercedes 300: SE..saloon..very little heat coming..rotary
Hi I have a Mercedes 300 SE 3.0 Lit saloon 1991 and have very little heat coming out of the heater, could it be the two rotary daial not sending the right tem, to open a valve ? I wolud appriciete any… read more
MBGuru
MBGuru
Bachelor's Degree
282 satisfied customers
1989 Mercedes: heater..blowing cold air..defroster..a relay or vaccum
I have a 1989 Mercedes 420 sel and when using the heater the floor vents keep you warm but the air coming out of the vents at the window is blowing cold air. If you put the defroster on the air will w… read more
MBGuru
MBGuru
Bachelor's Degree
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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

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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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Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

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444 satisfied customers

Work and diagnose electronics on daily basis.

Tim Mohr

Tim Mohr

ASE MASTER TECH

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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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