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#1
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Heater blower not working 76 240D
Hi evryone and thanks for checking this out. I checked the fuse and it is fine #6 in the fusebox- a fuse of its own. Then proceeded to look at heater box{scary looking for removal, it is really tight in there}. I believe the motor and fan are behind the heaterbox backed up to the firewall.
Anyone have any thoughts or ideas? thanks again |
#2
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That's a 115 chassis right?
Rumor has it MB used to hang the fan on a couple of strings and build the car around it. There are a few possible fixes. You can try spraying some liquid wrench on the center of the fan. Complete disassembly of the console and replace the fan. takes about a day or 2 cut a hole in the firewall and weld it back or put a hinge on it for future use. You can probably search for more options...
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72 250 M130 W114 |
#3
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I took off the cowl cover and managed to resurrect the fan in one of my 220Ds by dribbling some auto trans fluid onto the bearings.
Good thing is there is plenty of ram air effect once you are moving.... Jim
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14 E250 BlueTEC black. 45k miles 95 E320 Cabriolet Emerald green 66k miles 94 E320 Cabriolet Emerald green 152k miles 85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles |
#4
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240D blower
I guess I was hoping not to tear it all down, but it is inevitable to try and stay warm for the winter.
thanks |
#5
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Heater Blower
I fixed this same sort of problem on my W115 that had been sitting around for 5-ish years.
The fuse in the little case of its own in the engine compartment was blown. The heater blower was also sort of frozen. This caused the unit to draw excessive current. You can try to turn the blower fan by pushing a long stick in thru the center vent. I removed this center vent first, then poked the stick in with a flashlight to see the blades. See if it turns freely. If it doesn't, you'll have to lube it. You can do this without the complete disassembly by removing the cover on top of the fresh air intake and drilling a hole (that you will have to plug afterwards, so don't make it big) and using something like a sewing machine oiler with a long tube that you can stick in the hole. If the blower will turn easily and the fuse is not blowing, then the problem is electrical. It might involve the vacuum switch for the A/C as I think that is also part of the circuit. |
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