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#1
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What dose this do?
What dose a 3-Way Switchover Valve dose anyways...
Here is the pic http://www.***************/search/imageexpand.aspx?imageurl=../secure/PartImages/0015407097.jpg
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Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi |
#2
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Overboost protection?
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E. |
#3
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From site description
Mercedes (OE)/Pierburg Vacuum Valve; 3-Way Switchover Valve with 3 Vacuum and 2 Electrical Connections Multiple use relay for EGR, fast idle, transmission control, shift-point, starting booster, manifold pressure compensator, air pump, etc. Please verify appearance and connections of existing unit prior to ordering. I believe this is for the vac control for the heater vents?
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83 300SD Dark Silver Dark brown inside |
#4
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Is this on your 84 SD with a 617 engine?
I removed all the vacuum lines from the black box on my 617 which removes the EGR function. Replaced the Y connectors on the driver side of engine with straight connectors (keep the orifice!). Car runs and shifts better with no negative effects.
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Charles 1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/showthread.php?t=296386 |
#5
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Is it needed? Because my vac lines that goes to that was removed and broke one of the connection nipple, should i buy another one??? And about that black box, so that is not needed, so basicly just remove those 2/3 valve things, and rerout the vac line, right
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Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi |
#6
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There is a better thread. Do a search for EGR removal. I left the box in place as it seemed to tie in to the throttle assembly. I removed all the lines to the box, and the EGR.
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Charles 1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/showthread.php?t=296386 |
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