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Dual auxiliary fans don't shut off unless ignition key is
dual auxiliary fans don't shut off unless ignition key is turned off, '93 Mercedes 190E 2.6 … read more
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Marty
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Associate Degree
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I have a 1991 mercedes 420sel. we replace both of the auxery
I have a 1991 mercedes 420sel. we replace both of the auxery fans because they did not work. when they were replaced we noticed that they were operating on high speed all the time the key was turned o… read more
Marty
Marty
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My fan is turning on high speed when i start the car and
My fan is turning on high speed when i start the car and have no heat coming from the vents … read more
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Pete
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I Just picked up a 2013 smart car passion 10,000 miles,
I Just picked up a 2013 smart car passion 10,000 miles, under idle condition with the air conditioning on 2 the car overheats within 3-5 minutes at 85 degree ambient temp.( safely pull over and the re… read more
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What power by auxiliary fan relay on my 1990 Mercedes 300
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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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My EPC warning came on in my E220 CDI. Now the fan runs at a
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Pete
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I have a 1998 ML 320 with a Radiator Fan Issue. The fan may
I have a 1998 ML 320 with a Radiator Fan Issue. The fan may or may not come on. When it does, it cools slowly if the fan comes up at the Lower Speed and will freeze you if it comes on at the High Spee… read more
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2008 Mercedes CLK 350... Aux Fan comes on at high speed as
2008 Mercedes CLK 350... Aux Fan comes on at high speed as soon as you start car. Also stays on for 2-3 mins after car is shut off. Already replaced coolant temp sensor and ambient temp sensor. Car ha… read more
Lou P. master tech
Lou P. master tech
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2008 Mercedes E350 Convertible... Fan comes on at start-up
2008 Mercedes E350 Convertible... Fan comes on at start-up at FULL SPEED. Stays on and continues to run after key is taking out of ignition. Already replaced coolant temp sensor, radiator, and cooling… read more
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I have a 2008 E350 and the temp indicator comes on in the
I have a 2008 E350 and the temp indicator comes on in the multi window, temp guage seems ok about 80C … read more
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2007 MB S550 radiator fan runs intermittently at gh speed
2007 MB S550 radiator fan runs intermittently at high speed when the temp gauge reads 80C and less, and runs after engine shuts down from high speed driving for minutes at a time. First time in 8 year… read more
Stan
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I have a 2007 280c, and the car will overheat in hot weather
I have a 2007 280c, and the car will overheat in hot weather when I'm doing city driving. I checked fan fuse, coolant levels etc. and it seems the fan runs on the slow speed, but when the car is at te… read more
Lou P. master tech
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E350 4matic: I have a 2007 E350 4matic. My engine is over heating.
I have a 2007 E350 4matic. My engine is over heating. I had my cooling fan changed along with the thermostat and a new coolant temperature. Please help.… read more
Marty
Marty
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s550: i have a 2007 s550 and after driving the car for a few
i have a 2007 s550 and after driving the car for a few hours. the fans will start to blow for like five minuets full blast! like hellacopter perpellers. then turn off for two minuets, then back on and… read more
Pete
Pete
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29,866 satisfied customers
2004 C240: 4 matic cooling fan runs at high speed..Module..circuits
My 2004 C240 4 matic cooling fan runs at high speed at all times when the engine is running. As far as I can tell the coolant sensor is Ok and the Module is ok,it is setting a P0273 code. There are no… read more
Dodge expert
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92 190E: running hot..Aux..engage..the head gasket once
92 190E is running hot. Aux fan does not seem to engage but I have not let it get to 110 deg because I have already had to replace the head gasket once. Also was under the impression that the switch w… read more
Marty
Marty
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Associate Degree
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1991 350SDL: auxiliary..fans..coolant as it was not cooling very well
MBGURU: I have a 1991 350SDL whose auxiliary fans will not turn on. I turned the car on and let it warm up. The A/C was on, but I believe low on coolant as it was not cooling very well. The car heated… read more
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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

29,460 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

4,460 satisfied customers

20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

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Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

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

promerc

promerc

mercedes diagnostic technician

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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.

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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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