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Related Mercedes Questions
Heater fan shuts off and comes back on. It looks good. 2010
so I jump started the car one day and I found that when I pulled off the battery cover the left side opening the the blower moter vent was cracked and broken so i mended that area … read more
Daniel Chaidez
Daniel Chaidez
Technician
Diploma
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2011 cls 550. heater blows cold air only, heat will not come
2011 cls 550 . heater blows cold air only, heat will not come on … read more
Matt
Matt
Engineer
Bachelor's Degree
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My 2007 CLK 350 heater is blowing but not warm air. The
Hello, My 2007 CLK 350 heater is blowing but not warm air. … read more
Lou Palomino
Lou Palomino
Mercedes Technician
associates in automotive technology
10,511 satisfied customers
Car = 98 Merc S500; the AC blows cool air from two center
Car = 98 Merc S500; the AC blows cool air from two center vents in dash, and very hot air from driver and passenger dash vents next to doors at same time. What needs to be fixed, name for parts/part #… read more
Lou Palomino
Lou Palomino
Mercedes Technician
associates in automotive technology
10,511 satisfied customers
I have a 1998 Benz S420. Heater works air conditioner
I have a 1998 Benz S420. Heater works air conditioner doesn't. Put new thermostat in and the vent in middle above instruments got very hot with heater on and now it doesn't work. And air is shorted ou… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
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2010 C350 Mercedes air conditioner is intermittent. It blows
2010 C350 Mercedes air conditioner is intermittent. It blows hot and then cools down. I had the system evacuated and serviced. The mechanic said the system was blowing cold air. However, when I picked… read more
Lou Palomino
Lou Palomino
Mercedes Technician
associates in automotive technology
10,511 satisfied customers
The engine is running hotter than normal. It is at 100. We
The engine is running hotter than normal. It is at 100. We have been driving for 6 hours and had the air conditioner on the last 2 hours. We have noticed the fan that normally runs after the car is sh… read more
sprinkles08
sprinkles08
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High School or GED
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ML350: I am a proud owner of a 2009 ML350 Mercedes. I am having
I am a proud owner of a 2009 ML350 Mercedes. I am having problems with the car air conditioner system blowing air into the car, there is no sound from the fan like previously when I put the air condit… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
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Mercedes-Benz ml430: marty my heater only blows cold air. all
marty my heater only blows cold air. all the vent position work cold air blows from under the dash from the dash and the defroster. I have read your previous ansewers to this question but i thought i … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
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E320: I have a 2001 MB e 320. When the ac is on it blows cold
I have a 2001 MB e 320. When the ac is on it blows cold for about 3 minutes, the the air warms up for a few minutes and then it the air comes back on and so on. Than other times it blows cold for a lo… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1998 ml320: pulleys, belts, battery & water pump changes..light comes
Hi, we have just purchaseda 1998 ml320 and yes it has a problem. I was told by the guy we bought it off he just had pulleys, belts, battery & water pump changes. We drive and when the car gets to abou… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
2000 mercedes Benz: blowing..warm/hot air..fan or blower become..vents
2000 Mercedez Benz s 430 Heater is not blowing any warm/hot air. It appears the climate control is functioning properly. I can hear the fan or blower become louder but no noticeable change in the flow… read more
DBAutomotive
DBAutomotive
Owner/Operator
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
1987 400sel: 000 miles..degrees..air conditioner..cool air to hot air
I have a 1987 402SEL with only 80,000 miles on it. Just took a road trip a couple weeks ago with outside temperatures around 100 degrees. The air conditioner worked fine EXCEPT it would occassionally … 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
seat..radiator cooling fan is turning very slow un less u jump..relay
1999 e 320 ac problem heat only from the outter vents only blow hot air and rear vents in middle of seat blow hot also the middle vents in the front blow cold also the radiator cooling fan is turning … read more
Nelson Garcia
Nelson Garcia
Vocational, Technical or Trade Scho
1,094 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
30,558 satisfied customers
1978 Mercedes 450sl: servo..coolant leak..the air conditioner
I just had the heater servo unit replaced on my 1978 Mercedes 450sl due to coolant leak. Now the air conditioner is just blowing hot air. Mechanic said one has nothing to do with the other. He said th… read more
RMillerPhD
RMillerPhD
V.P. of Academic Affairs
Doctoral 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

Mercedes Technician

30,558 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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