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Old 10-20-2004, 09:08 AM
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Join Date: Jul 2003
Location: Northern Virginia
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85td washer pump general questions

New to me 85 td 250k. Just picked it up on Sat. Poured some washer fluid in the res. and leaked out in about 5 min. Pump for rear wiper is gone - only the rotted grommet remains. Plugged the hole for the rear pump and looked for the plug and wire for the motor. Couldn't find the plug/wire anywhere. Then I started looking for the clear tubing for the rear spritzer. Could only find tubing for the front spritzers. Lifted the hatch and saw there was washer tubing attached to the rear spritzer...I didn't have time to find out where the tubing for the rear went. Shouldn't the plug/wire for the rear pump be right there with the plug/wire for the front pump?

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  #2  
Old 10-20-2004, 11:26 AM
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Location: Colleyville, Texas
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No

First I assume that by TD, you mean a station wagon. Otherwise if it is a sedan then its just a 300D, all 85 W123's were turbo

Front pump has a grommet that the pump goes thru into the washer tank. Get a new one from the dealer and install it. The fluid will then stay.
Make sure the tank is not cracked. If it is either get a new one or epoxy it.
remove the tank by just pulling up on it. Make sure your washer spray nozzles
are not clogged with old dried wax. Use a fine wire to clear them. You may have to remove them to completely clean them out, but probably not.

Rear washer tank is in the right rear storage compartment. Open the storage compartment and remove the junk that is probably in there. At the bottom you will find the washer tank. Again check the grommet and operation of the motor. Then also check the rear spray nozzle for old wax. The spray button for the rear washer is on the center consol. The button that looks like the rear window is being sprayed.

Here is the SM for the rear washer setup.

http://skinnerbox.steaky.org/Service/W123/w123CD2/Program/Chassis/82-770.pdf

Dave
__________________
1970 220D, owned 1980-1990
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1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
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Last edited by dmorrison; 10-20-2004 at 11:33 AM.
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  #3  
Old 10-20-2004, 11:48 AM
benzzy
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Lightbulb and also...

I just went thru this with my wagon. If you do the above and yours works great...if not follow the below.

Checking the hose in the rear hatch: The hose goes from the rear washer fluid container up over the passenger wheel well, up the rear roof support next to the rear passenger side door, back to the hatch and thru a black tube on the passengerside into the hatch, and to the nozzel in the center of the hatch.

I had to re run new hose because mine was cracked inside the hatch.

Very importantly there is a small grey check valve in the line near the rear wheel well on the back side. Mine was bad. It took me forever to find it.

Check your lines for leaks with a mity vac by this method.

There are two connection. Find the grey check valve and plug it. Remove the trim around the speakers and rear light. On the passender side you will find a black joiner connection above the headliner. You can hook your mity vac and check that tube.

Then check the tube to the nozzel. With the hatch shut, you sitting in the back of the car you will see a hole behind the nozzel. Using a magnetic philps head srew driver you can remove the nozzel screw and remove it. Plug that tube and see if you can hold pressure. If so the line is good. If not you will have to rerun it.

Hope this helps.
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Old 10-20-2004, 12:11 PM
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Join Date: Jul 2003
Location: Northern Virginia
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You guys are good

Yes. Its a wagon. It didnt' occur to me that there was a separate rear washer tank. (banging side of head with hand). I'm totally new to this sort of vehicle. Many thanks for the info. (Good thing I have a mity vac)

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