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  #1  
Old 01-01-2006, 03:13 PM
DieselBone's Avatar
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Location: Mechanicsburg, Pennsylvania
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What is this part called?

I've been working on my brothers 190D trying to solve a shut off problem and I have found the source. The pic below, what is the circled item? It has a pretty large leak inside of it. Can someone tell me it is and what it does? And maybe a part number. I know it works with the EGR, but I am unsure of anything else.

Thanks again and Happy New Year!!
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What is this part called?-190d.jpg   What is this part called?-190d2.jpg  
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-Randy Wakefield

1969 220D 4 speed (parts car)
1976 280C
1976 280S
1981 240D 4 speed (parts car)
1982 300D
1983 300TD (Ivory)
1983 300TD (gold)
1985 300TD (gray)
1987 190D 2.5
1970 280SEL (sold)
1977 240D 4 speed (sold)
1974 280 (rusted to death)
---
1927 Chevy 4 door sedan
1938 Chevy 2 door sedan
1950 Willys Jeepster
1955 Studebaker President 4 door
1977 Ford F250
1979 Glastron 17'
1948 John Deere A
1960 John Deere 2010
1979 Satoh S650G
--
2000 Bichon (Doby)
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  #2  
Old 01-01-2006, 03:22 PM
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Location: Blue Point, NY
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Randy, I'm just taking a guess, because I don't have any intimate knowledge of that engine, but, it looks like a derivative of the blue vacuum amplifiers that are found on the '85-'87 vehicles for regulation of transmission vacuum.

I'm sure someone who has that vehicle can confirm this.
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  #3  
Old 01-01-2006, 03:32 PM
carson356
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Quote:
Originally Posted by Brian Carlton
Randy, I'm just taking a guess, because I don't have any intimate knowledge of that engine, but, it looks like a derivative of the blue vacuum amplifiers that are found on the '85-'87 vehicles for regulation of transmission vacuum.

I'm sure someone who has that vehicle can confirm this.
i agree, except for it is black rater than blue, is there a part number on it?
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  #4  
Old 01-01-2006, 05:03 PM
DieselBone's Avatar
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Location: Mechanicsburg, Pennsylvania
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part number....

Thanks for the replys, I didn't even think to look for a PN on the part itself, this is what I found: 123-300-05-33. I tired the number here but nothing worked, I tried with the spaces and with out.

About the transmission vacuum part, I don't know if its that or not. Mine has 4 ports, 2 top and 2 bottom, they are labled. TOP: 1, VAC 2, EGR BOTTOM: 1, Atm, 2, VCV. Also, there are 2 valve looking items beside the main part, and they have hoses (and eletrical plugs, but the main part has no elc. conections) that also run into the main part and else where (hoses go into conduit, and can't trace) So maybe this will help.
Thanks

Randy
__________________
-Randy Wakefield

1969 220D 4 speed (parts car)
1976 280C
1976 280S
1981 240D 4 speed (parts car)
1982 300D
1983 300TD (Ivory)
1983 300TD (gold)
1985 300TD (gray)
1987 190D 2.5
1970 280SEL (sold)
1977 240D 4 speed (sold)
1974 280 (rusted to death)
---
1927 Chevy 4 door sedan
1938 Chevy 2 door sedan
1950 Willys Jeepster
1955 Studebaker President 4 door
1977 Ford F250
1979 Glastron 17'
1948 John Deere A
1960 John Deere 2010
1979 Satoh S650G
--
2000 Bichon (Doby)
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  #5  
Old 01-01-2006, 07:31 PM
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Join Date: May 2002
Location: Blue Point, NY
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Quote:
Originally Posted by DieselBone
Thanks for the replys, I didn't even think to look for a PN on the part itself, this is what I found: 123-300-05-33. I tired the number here but nothing worked, I tried with the spaces and with out.

About the transmission vacuum part, I don't know if its that or not. Mine has 4 ports, 2 top and 2 bottom, they are labled. TOP: 1, VAC 2, EGR BOTTOM: 1, Atm, 2, VCV. Also, there are 2 valve looking items beside the main part, and they have hoses (and eletrical plugs, but the main part has no elc. conections) that also run into the main part and else where (hoses go into conduit, and can't trace) So maybe this will help.
Thanks

Randy
For sure it regulates transmission vacuum with inputs from the vacuum control valve (VCV) and vacuum (VAC). This one also affects the EGR in some fashion (EGR) but, I've got no idea what the intent is.
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  #6  
Old 01-01-2006, 07:43 PM
t walgamuth's Avatar
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Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 33,755
i suspect

that it might not be an original part to that car since it starts with 123. it would be a part for a 123 chassis car, i think. perhaps it has been adapted.

tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #7  
Old 01-01-2006, 08:09 PM
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Join Date: Aug 2005
Location: Northwest
Posts: 47
Part Numbers

The part may very well be original. Just because a part number begins with another chassis number does not mean that it can not work on your car. If the part number starts with 123, I have been instructed that is the chassis that the part originated on, however, thats not always correct because it could have been converted to a new number when the part was modified for that chassis ect...

Its best to make contact with Mercedes Benz to see of that part is original and also to see if the part has changed numbers now that it is 20 years later.

Hope this helps.

Ryan
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1985 300D Turbo Diesel
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  #8  
Old 01-01-2006, 09:23 PM
Brandon314159
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Yep just start looking around a w126 body 300SD. The coolant expansion tank starts with a w116 part number. Not too suprising...lots of similaries
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  #9  
Old 01-01-2006, 11:43 PM
t walgamuth's Avatar
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Location: Lafayette Indiana
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yeah

i wondered about that even as i wrote it. clearly you guys are right.

tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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