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#1
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Disconnect battery for coolant drain?
My Haynes manual for 85 300D turbo says to disconnect the negative battery terminal when draining coolant. Not being very car competent, it makes me wonder just what I'm not aware of? I know I 'll have metal tools in my hand, but will I be anywhere close to 12v?
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#2
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How close is the starter ?
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2007 C 230 Sport. |
#3
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Starter might be close
Starter might be close. The manual says there are two drains. The radiator drain pretty much is away from everything. Supposedly right side of engine has some place to drain coolant, but I need to take a better look.
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#4
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i didn't disconnect the terminal when i removed my rad (convenient way to drain!!) but i would disconnect it whenever working on my car, because of 2 factors:
1 you may find a wire somewhere that will come in contact with your hand, or short and fry something, and 2 "friends"/family thinking "ooh, I'm just going to go and start (your name here)'s car!!! (that was inspired by a dream i had about adjusting valves on my mbz, and my brother tried to start it, crank, metallic grinding noises, and pow!! that probably wouldn't really happen, but its a valid point, and makes me wonder if I'm more paranoid about my car than i think!!)
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1982 300D (w123, "Grey Car") 1982 300D (w123, "Blue Car") 2001 Ford F150 "Clifford" (The Big Red Truck) 1997 Dodge Ram 2500 12V Cummins 1996 Dodge Ram 2500 12V Cummins Previous Vehicles: 1995 E300D, 1980 300SD, 1992 Buick Century, 2005 Saturn Ion |
#5
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The two places to drain the coolant are through a drain plug on the right side of the engine block and a plug on the bottom of the radiator.
I have done a number of coolant changes, and can say that I have never heard of diconnecting the battery to drain the coolant.
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Ali Al-Chalabi 2001 CLK55 1999 Dodge Ram 2500 Cummins Diesel 2002 Harley-Davidson Fatboy Merlin Extralight w/ Campy Record |
#6
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Yeah its a coa thing... u MIGHT deside to grab the battery termionals with your coolant wettened hands... and that HELLACIOUS 12 volt shock might seriously injure you
But the fans (in theory) can kick in at any time, because theyre electric... Why not disconnect it? takes 5 sec mabey 30... and you dont have to worry about your mother in law trying to start the car with you under it (keep the keys in your POCKET... I kinda spent a while looking for mine... which were in the ignition the whole darn time) ~Nate |
#7
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If you notice in Haines almost every procedure starts with dicconect the battery. Just Safety.
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) |
#8
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Quote:
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#9
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An ounce of prevention is worth a pound of cure.
Ben Franklin:
An ounce of prevention is worth a pound of cure. Me: A pound of prevention is 15 ounces too much. But in this case I'll disconnect the terminal and hopefully remember to wipe off any coolant from my hands before reconnecting. |
#10
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I always disconnect the battery when working on most things above an oil change under the hood. It's just habit. I'm not worried about shocking myself, I'm worried about destroying some of the electronics on the car. I shock myself all the time (do a lot of the electrical work) and my heart hasn't gone irregular just yet.
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