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#1
05-19-2002, 11:30 PM
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rear wipers always on, 300TD
Of course, it has to happen out of town when I'm without my tools.
Rainy Friday and Saturday, and I have been using my wiper on the TD, generally on intermittent. I got into the car on Saturday afternoon and the wiper came on with the key, and no fiddling with the buttons could shut it off. It's going to be a day or so before I can test the system, but if anyone has had this, and can give me any advice, I'd appreciate it. Peter 1985 300TD
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Peter 1985 300TD 4-speed 212K 1992 400E 343K 2001 E320 72K 
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#2
03-19-2003, 05:19 PM
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I have just the opposite problem. I get 12 volts on two pins in the gate and a good ground, but wiper does not work. Something must be providing 12 volts to the wrong connector ring inside the wiper. I've had one apart. Or perhaps the switch is permanently on. Unfortunately the fuse also controls other electrical functions. Someone pulled the plug on the wiper motor inside the gate. perhaps this is the reason?
If you find out, please post because the problem is driving me nuts!
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Stage Wizards Lighting and sound designer 1981 SD 328,000 1985 300TD, 266,000 1984 300 TD, 267,000
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#3
03-19-2003, 05:41 PM
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I think that there may be two different wirings
I grabbed a rear ww motor from a junkyard (from a non-turbo TD) and the motor appeared to be wired slightly differently than the motor for my 84 300TD. One does not appear to be plug and play compatible with the other.
Fortunately, all I needed was the transmission. If yours is stuck on all the time, it seems worth taking oneor both of the switches from the consol and disconnecting them. If that doesn't work, I guess you could try the fuse. Other than that, you will probably be opening up your tailgate... alec
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84 300TD - 235k - Farbe "Surfblau" bought at 213k 87 300SDL - 131k - Farbe "PimpGold" bought at 115k 00 Klepper Faltboot Expedition Double
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#4
03-19-2003, 10:20 PM
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When mine sticks on, the button is stuck in. Use a knife or thin instrument to see if you can pop it out.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#5
03-20-2003, 07:18 AM
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The replacement was plug and play (after an hour's work to remove and replace the old motor.
But the junkyard is shipping me a new motor gratis. Perhaps that is plug and play. And maybe I can cobble enough parts from the two dead motors to make one that works. By the bye - inside the transmission, where the contacts are, the electrical connections are covered in heavy grease. Would that interfere with the current? I know the worm assembly should be lubricated, but I would think that grease would make a poor connection.
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Stage Wizards Lighting and sound designer 1981 SD 328,000 1985 300TD, 266,000 1984 300 TD, 267,000
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#6
03-20-2003, 10:35 PM
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If there is grease on the electrical contacts, clean it off. Grease (and oil) does not conduct electricity.
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1984 190D 2.2 Auto 220k 2001 Jeep Cherokee Sport 70K 2004 Lexus RX-330 ??K 2005 Chrylser Crossfire LTD 6K Play guitar? Go to www.cyberfret.com for free online lessons!
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