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I have an' 06 R171 that I bought last spring. A/C works ok
I have an' 06 R171 that I bought last spring. A/C works ok using auto mode. But I can't get any heat to blow from vents or to the footwells. Pushing the Defrost button gets plenty of hot air to the wi… read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,278 satisfied customers
I have an issue where for some reason my front defrost
I have an issue where for some reason my front defrost stoped blowing hot. It use to get warm but now its only cold air blowing out even with the temp dial up. … read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,278 satisfied customers
My 2006 C280 does not feed heated air into the driver side
my 2006 C280 does not feed heated air into the driver side vents (foot well remains very cold in winter weather). Passenger side vents work fine … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
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
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
30,558 satisfied customers
C230: Hello, I have a 98 C230. The blower fan stops working
Hello, I have a 98 C230. The blower fan stops working after it's been on for a couple of hours. If I turn the car off for a few hours it'll work again, as long as I don't drive for too long. Also, the… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
30,558 satisfied customers
ML320: Hi, my question is similiar to this: http://www.justanswer.com/mercedes/3j94d-ml-3
Hi, my question is similiar to this: http://www.justanswer.com/mercedes/3j94d-ml-320-airconditioner-makes-clicking-noise.html BUT, I don't think it comes on in the full hot. As a matter of fact, i jus… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
broken vacum line that controls the ports.this is still part
could my problem be caused by a week vacum pump or mabe ahole or broken vacum line that controls the ports.this is still part of original question.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1994 mercedes benz e320: OAT temp gauge..instrument cluster..air flow
I have a 1994 mercedes benz e320 coupe. I have a 2 part question, as I am not sure if the 2 items are related. The descriptions of the auto climate control system that I have read, seem to indicate th… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
The highway at high RPMs (70 - 80 mph) the vents..windshield
I have a problem with both of my 420 SEL's which just started when the warm weather set in a few days ago. While driving on the highway at high RPM's (70 - 80 mph) the vents in the front (predominantl… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
2003 clk500: vents..The fan is still blowing somewhere in the dash
2003 CLK 500. After an hour or so of driving, the A/C vents in the front of the dash emit less and less air. The fan is still blowing somewhere in the dash but the air doesn't seem to be coming out. T… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 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
1999 Mercedes SL500: vents..The AC seams to be running..flow
Regarding a 1999 Mercedes SL500 Air Conditioning system: After driving for about one hour the air conditioning vents close down and no air comes into the cockpit, however. The AC seams to be running i… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1997 S420: the dash board vents..windshield..cold air..blower motor
When I turn the heat on in my 1997 S420, the hot air does NOT come out of the dash board vents, rather it comes out of the defroster vents near the windshield. It seems that the cold air comes out of … read more
Dodge expert
Dodge expert
ASE MASTER TECH, REPAIR FACILITY OWNER
High School or GED
3,636 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
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MB Paul

MB Paul

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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

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promerc

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Hipo64

Hipo64

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Work and diagnose electronics on daily basis.

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Tim Mohr

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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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