broken monovalve coil
 

ok, so I was trying to remove the monovalve from its housing and went a little too far, now the coil is detatched from its little leads to the posts (cant find the point where they broke from the coil) and it is no longer attatched to the metal plate...And the metal housing that sits aournd the coil has detatched from the plate as well... (next time i wont try to drive it out with a hammer and vise:eek:
Can I fix this little mess or do I need a new housing unit. where can i look for such a piece? and how much. right now i re-installed the broken unit to keep driving without loosing coolant, but didn't attatch the electrical leads back up...
That bugger was friggin stuck in there and all corroded too! But I was right in my diagnosis, the rubber diaphram was torn to shreds!
thanks for whatever help you can offer.
- Ben

Need critical data to help
 

Data needed:
Year.
Make.
Model.
Miles on the car.
Geographic location = nearest major city.




Have a great day.

Is the MAKE really neccesary??

No
 

It is a generic formula, from a text file that I use on other forums. :)

I Just Did This Exact Same Thing And Now My Girlfriend Wont Talk To Me!!!

ps. i have an '82 300sd. whats it going to cost ME to replace the housing?

New
 

Depending upon your Chassis number, here are the prices and links.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1982 Mercedes Benz 300SD
Heater Control Valve, (Solenoid Valve) NOTE: For Use with Heated Windshield
MB# 000 830 37 84

Fastlane: ACC Mono Valve
http://catalog.peachparts.com/item.wws?sku=W0133-1600853

oh man. so im going to have to replace the entire valve? theres no reconnecting the wire? this was the costliest minor error ive yet made.

This is something you would get from a wrecker's yard, since a new "kit" gets it up to par with smaller effort/cost. Check here for example:

http://cgi.ebay.com/ebaymotors/MERCEDES-380SEL-420SEL-500SEL-HEATER-CONTROL-VALVE_W0QQitemZ180064406738QQihZ008QQcategoryZ33548QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

or here:
http://cgi.ebay.com/ebaymotors/Mercedes-W-126-Heater-Valve-380SEC-380SEL-300SD_W0QQitemZ170061050512QQihZ007QQcategoryZ33548QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

hmm. thats a good idea. my question is... how can i figure out if my car has a heated windshield or not. i know its a silly question to ask, but ive only had it for a little bit, and i cant tell!

There is a little, ~1/4" fitting at the bottom of the valve; for the extra hose (little) that goes to the windshield heater. Look carefully at the two pictures Hunter cited.

im driving an 82 300D. Put all the stuff back together as good I could then finished flushing the coolant system. Now I get lots of heat, so mybe the thing defaults to open? Dont know. Where should i look for replacement units? (prefeably cheap/used)?
- Ben

Yes, the default is open, exactly right. MB designed it this way so if something fails you will have heat, in case the defroster is needed to clear the windshield.
Gilly

Answer:
 

Search: Key Word(s): mono ; Forum: Parts
http://www.peachparts.com/shopforum/search.php


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Junk yard.
eBay.
Craigslist.

There's a yard up the road, that I know has at least 5 of them.