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#1
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94 E420 - Driver Side Aux fan not engaging
Folks,
Car started to overheat today. I opened my hood and had some "smoke" coming from back/top side of engine (sort of in front of firewall). Anyway, after some investigating I noticed that the driver side aux fan is not engaging. Question... Is there a fuse or relay that controls just the driver side aux fan? Anything else I can do to test or check?
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Willy '94 E420 White Mods ------- Berg Werks Keyless Entry Buzzer replaced with Chime Dash Light Upgrade Burlwood/Leather shift knob Alpine CDA-9815 Head Unit 2002/2003 16" C Class 7-Spoke Wheels Updated "Chip" to fix Code 19 problem |
#2
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Another question.... Should the car overheat when 1 fan is inoperable?
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Willy '94 E420 White Mods ------- Berg Werks Keyless Entry Buzzer replaced with Chime Dash Light Upgrade Burlwood/Leather shift knob Alpine CDA-9815 Head Unit 2002/2003 16" C Class 7-Spoke Wheels Updated "Chip" to fix Code 19 problem |
#3
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Quote:
Quote:
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Willy '94 E420 White Mods ------- Berg Werks Keyless Entry Buzzer replaced with Chime Dash Light Upgrade Burlwood/Leather shift knob Alpine CDA-9815 Head Unit 2002/2003 16" C Class 7-Spoke Wheels Updated "Chip" to fix Code 19 problem |
#4
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Well,
Taking the advice from some folks here, the first think I did was to give the fan a whack. It worked. Acually, I'm finding that both fans are shutting off independantly and randomly, so I assume that the brushes are wearing out on both of them. Guess I'll have to replace them. Has anyone replaced these? What is entailed?
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Willy '94 E420 White Mods ------- Berg Werks Keyless Entry Buzzer replaced with Chime Dash Light Upgrade Burlwood/Leather shift knob Alpine CDA-9815 Head Unit 2002/2003 16" C Class 7-Spoke Wheels Updated "Chip" to fix Code 19 problem |
#5
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Quote:
The running hot can be a combination of factors which at this point require the process of elimination. 1)it sounds like one fan is in need of replacement, 2)reassess the running hot after the fan(s) are installed 3)if your engine temp stays at 100C email me for a cure The smoking at or near the firewall would lead me to suspect a leaking valve cover gasket. |
#6
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Only saw the steam when it was overheating. I'll keep a close eye on this.
I do have a coolant temp hack (pigtail with resistor) in place to turn the fans on earlier. Is this the fix you are alluding to? So... how hard is it to change the fan?
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Willy '94 E420 White Mods ------- Berg Werks Keyless Entry Buzzer replaced with Chime Dash Light Upgrade Burlwood/Leather shift knob Alpine CDA-9815 Head Unit 2002/2003 16" C Class 7-Spoke Wheels Updated "Chip" to fix Code 19 problem |
#7
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Been there done that
Except on a 190E. Only one of my fans was turning, sometimes it would spin a little when I banged it. I took it out and apart and it turned out the brushes were stuck, All I had to do was un-stick them. I don't know how your car would be, but for me taking them out wasn't too bad, I did have to take the bumper off.
But be careful, take the temperature sensor off first. The weight of the bumper is a lot more than the temperature sensor wire can hold |
#8
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Hi tkaimya
Given the context, Agreed. Perhaps it may have been a bit unclear for some visitors so I was adding a few details so somebody would not get the wrong impression. B- |
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