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Related Mercedes Questions
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
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
57,140 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
57,140 satisfied customers
e320: Hey Marty, Ive been thinking about the restriction
Hey Marty, I've been thinking about the restriction in the heater core of the Benz, Last year when I did the AC I removed the heater hoses around the Hblock to get at it. There is a plastic Y connecto… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
C 280: I am having a problem with the a/c on my C280 M/B 1995.
I am having a problem with the a/c on my C280 M/B 1995. My mechanic tell me there is a leak. But, they have replaced the suction hose and the expansion valve. It has been recharged numerous times. Whe… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Mercedes-Benz 420SEL: I have a 1991 mb 420sel both hot air
I have a 1991 mb 420sel both hot air and cold air comes out when ac on can you help me with this thanks mike… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
Mercedes-Benz C280 I have a 1996 C280 with AC problems, when
I have a 1996 C280 with AC problems, when the AC is on I only get cold air from center vents and hot air from left & right vents and when I exccelerate I loose the cold in center vents until I stop ex… read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
Mercedes-Benz 190E My 1993 190E air conditioner no longer
My 1993 190E air conditioner no longer blows out cold air. The problem has been slowly building over the past couple of years, but now, no cold air at all. Any suggestions?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1991 350sd: there is HOT air coming out of somewhere..stick and mine
Hi, I have a 1991 350sd--the a/c works just fine but suddenly, there is HOT air coming out of somewhere in the driver foot area! Someone said there are louvers that stick and mine is open--any ideas o… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
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
57,140 satisfied customers
Kompressor: lower ac vent is the only vent..blows cold..vents..HOT air
Sirs, I purchased a MB SLK Kompressor, 1999 with 86 thousand miles on it. The problem I am having with it is the fact that the left lower ac vent is the only vent that blows cold. The two center vents… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 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
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
auto mechanic
Vocational, Technical or Trade Scho
270 satisfied customers
99 E320: MY A/C BLOWS COLD AIR..HOT AIR..SIDE VENTS
I HAVE A 99 E320 DEISEL. MY A/C BLOWS COLD AIR ON THE TWO CENTER VENTS AND HOT AIR FROM THE TWO SIDE VENTS! WHAT IS MY PROBLEM?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,140 satisfied customers
1988 190E: ac..blowing cold..hot air out the vents near the windshield
I have a 1988 190E, the problem I am having is the AC is blowing cold from the center vent and hot air out the vents near the windshield. Could you tell me what is going on???… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
The A/C blows cold out the passengers side vents..driver side
I have a 1997 E300D. The A/C blows cold out the passenger's side vents, but not the driver';s side vents. Even the center 2 vents, driver side is warm, pass is cold. Help?… read more
MB Paul
MB Paul
Mercedes Technician
Vocational, Technical or Trade Scho
3,567 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
57,140 satisfied customers
my a/c works fine and blows hard out the side vent
my a/c works fine and blows hard out the side vent, however it does not blow our the center vents, where are the ducts ran from and how do i access them to check if they are connected?… read more
Rob
Rob
Diagnostic Technician
High School or GED
196 satisfied customers
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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

Mercedes Technician

57,140 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

771 satisfied customers

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

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

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

Hipo64

Hipo64

Mercedes Technician

444 satisfied customers

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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