so im lookin for a heater fan control for a 91 190e i just bought it as a little project and seems to me that the heater control likes to work when it wants to so im lookin for a used one so i dont have to pay alot of money..by the way im located in boise id so if someone on here is there with that part please let me know thanx
Is it stopping intermitentily when you have your heat on and does it seem to run all the time when you have it set on the cold setting or a/c running. did you just notice it this winter. The reason I ask it may not be your fan, switch or relay give me more of a discription of the problem you are having
__________________ Why dream of just any vehicle, when you can dream of owning one that was never imported.
Is it stopping intermitentily when you have your heat on and does it seem to run all the time when you have it set on the cold setting or a/c running. did you just notice it this winter. The reason I ask it may not be your fan, switch or relay give me more of a discription of the problem you are having
well i bought the car just recently and the guy said that the heater didnt work and he didnt want to take it into the shop blah blah blah so i figured i got the car for 1500 il deal with it myself and fix it my self just takes a little research. thats how i found this site..anyways i got a wild hair and took the center consol off and was like maby theres a bad connection (after i checked the fuses under the hood, wich were all fine, with good connections) so i was like ok ill check the connections on the back of the fan control and vent control yada yada yada and so im looking at it all and checking the connections and put everything back together and i just said F it im going back to work and when i comeback out to leave i turn the key and low and behold its blowing like a mother!!! and i got so excited and checked it all good A/C nice heat all that and then when i get out of work i get in the car to let it warm up and let the heater heat up and nothing no heater AGAIN so i pulled the fan control seeing thats what ive narrowed it down to and i took that apart and cleaned all the connections with rubbing alchohol and everything..and now im here typing this..sorry for itbeing so long too but thats the a-b on it
try this and see if your fan comes on before you replace the switch. On the right front frame rail next to the engine is a small pump it is the auxillary water pump for the heating system unplug it and see if your fan works now. When this is bad the cars are equipped with overlaod protection and it shuts the system down. It may not bee the problem but I like to try and help cover all bases before someone spends money on parts. I have a guide here that might also help http://www.benzworld.org/forums/w201...ol-system.html
Auxillary Water Pump
Last edited by HATTENATOR : 02-20-2008 at 05:27 PM.
man you are a god send!! i love the DIY stuff here..im guna try that first thing in the morning seeing its dark outside...i dunno if i said this befor but i noticed today when i was puttin the center console back when i push the vent select buttons i can hear the clicking in the fan switch part and i can hear the vents opening up and closing when i choose diff ones...anyways ill try this first thing in the morning thanx man
so i tryed the aux motor and checked the relay behind the battery and nothing so im going to try a few more things and see if they work when one thing goes wrong in the system does the entire thing stop working??
so i didnt get to try anything elese on that DIY list of troubleshooting stuff but i did call a local benz repair shop and asked them if they knew and he had me try a few things and nothing and then ofcourse he said just bring it down and make an appointment blah blah blah but im still stuck wow wish you were closer or you cud just call me lol
Why dream of just any vehicle,
when you can dream of owning one that was never imported.
Auxillary Water Pump
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