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Related Mercedes Questions
Same problem, same engine. Changed the thermostat, radiator,
Same problem, same engine. Changed the thermostat, radiator, radiator cupling, flushed the system. It still doesn t go away. Also I have noticed that when the engine overheats I put on the heating and… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,058 satisfied customers
Heater headache, 1984 300D. Fan blower always works.
Heater headache, 1984 300D. Fan blower always works. Intermittently just cold/cool air coming out.Sometimes gets worse, but the intermittency doesn't relate to the engine temp, RPM, idle, road velocit… read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,437 satisfied customers
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'm having issues with my 1989 Mercedes 420 SEL heater. Do
I'm having issues with my 1989 Mercedes 420 SEL heater. Do you have someone that is knowledgable?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Marty, You told me a while back I could jump the resistor to
Hey Marty,You told me a while back I could jump the resistor to the Aux fan to have the fan kick in on high fan speed when the AC is switched on.I did this today on the 91 convertible, which has a sin… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Marty, I think my master cylinder is shot, just thought I
Marty,I think my master cylinder is shot, just thought I would check with you before getting a new one.The brake peddle feels softer and some times really soft. The fluid level is up in the normal ran… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
2500: My dash A/C on my 2004 Sprinter Van is not working properly.
My dash A/C on my 2004 Sprinter Van is not working properly. The heater seems to be stuck on, no cold air when A/C is on and fan is blowing, sometimes hot air comes out. Rear A/C is working fine, gets… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,058 satisfied customers
2007 280 4matic..condensor and recharged the system..full charge
I have a 2007 280 4matic I got hit and replaced the Condensor and recharged the system last summer know the air blows cool not cold and it has a full charge.… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,058 satisfied customers
OUT the heater on the side vents blow VERY hot air..only happens
when I am in the car WITH OUT the heater on the side vents blow VERY hot air. Even if you touch the vent it is burning hot. This only happens on side vents. The car become unbearably hot. Mind you the… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1999 mercedes c320: a/c will blow 40 to 60 degrees..cycle on hot air
I have a 1999 Mercedez e320. The a/c will blow 40 to 60 degrees for a while and then will cycle on hot air at 100 plus degrees. This cycle will occur on and off. I live in AZ and I notice the in the m… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
30,558 satisfied customers
lower hose..bolts for the side housing, is there a trick to pulling
1987 560 SL......I am trying to replace the thermostat.....I opened up the upper housing and there was nothing in it. Is the thermostat on the side of the water pump, in that housing where the lower h… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,143 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
30,558 satisfied customers
Hot air blows from side vents and dash vents all the time.
Hot air blows from side vents and dash vents all the time. water leaks from water pump tube. Are these related?… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,143 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
2002 C320: Only blows heat..directional is changed..vents
2002 C320- Only blows heat through lower vents(feet), when directional is changed on climate control...it continues to blow at the feet. And when climate control is off, heat lightly blows through low… 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
30,558 satisfied customers
C280: AC..blowing cool air..The side vents are blowing hot air
I have a c280 from 1997. My AC vents in the middle are blowing cool air. The side vents are blowing hot air. What is the problem? What parts would I need? Is this any expensive problem?… read more
MBGuru
MBGuru
Bachelor's Degree
282 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

30,558 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,143 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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