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#16
12-24-2009, 02:50 AM
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BrandonBunn?... check out POST #5 of this THREAD
Quote:
http://ericandkat.com/mercedes/W123VacDoorLockDiag.JPG I think that your "...single nozzle on the front..." was knocked loose and I also think this connects to one of the vacuum connections that come off of the main Vacuum Pump -to- Brake Booster chamber/chamber. Sam did NOT label that connection but I think I'm correct that it needs to be connected to the main vacuum source line some how! Let me check my 240D and get back to you! Regards, SteveR Last edited by SteveR; 12-24-2009 at 03:00 AM. 
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#17
12-24-2009, 10:56 AM
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^Yeah, or you could just replace those connectors.
__________________
83 SD 84 CD
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#18
12-24-2009, 11:47 AM
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This document has been floating around benzworld for quite some time. I printed it out and it now hangs above my desk
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-Typos courtesy of my mobile phone.
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#19
12-24-2009, 04:06 PM
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My Yellow Check is a little different - the back two plugs are connected to a Solid Yellow and the other back plug is connected to a Yellow with Black stripe...there is not a t connector as in the picture...The "front" plug with the indention is the one we cannot figure out where it connects too...A little father son Christmas fun today - but we cannot find it for this '85 300D!
Last edited by brandonbunn; 12-24-2009 at 04:07 PM. Reason: Typo
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#20
12-24-2009, 08:00 PM
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That is hooked to the front most nipple on the main vac line, eventually, there are branches on that.
__________________
83 SD 84 CD
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#21
01-14-2010, 08:02 AM
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Dear Sr. I need for my Mercedes Benz 1987 SW 300 turbo diesel 124 diagram of all vacuum conecting pipe.
Thnaks very much Alex Theiler atheiler@levtec.cl
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#22
08-12-2010, 04:15 PM
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Quote:
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#23
10-13-2010, 01:57 AM
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Welcome back Alex... from Chile !
Quote:
Q1 - Am I correct to assume you are talking about the same 1987 W124 Chassis station wagon with VIN WDBEB93D8HF034388 that has a 603 6-cylinder engine? Q2- What's your project this time? These cars have distinct and separate vacuum systems: (a) Vacuum shifting which you worked on before... (b) Vacuum door-lock system but I believe your car has a separate electric vacuum pump for it's vacuum source... (c) Vacuum controls for the heater & air conditioning... Q2-What are you trying to repair? Steve
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#24
11-03-2012, 09:47 PM
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I noticed this line as well above brake pedal coming from 1982 300d engine compartment, tangling and uncovered. It being a vent line - I assume this should not be blocked off? Thank you
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Brian  82 300d turbo 164k - passed on 83 sd - passed on 04 civic hybrid - DD 06 GTO for sale - passed on 84 VW Rabbit Diesel 4dr.- passed on 94 S350D - DD 94 S320 - soon to be DD Last edited by bellyboy; 11-04-2012 at 09:35 AM. Reason: further explanation
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#25
11-05-2012, 09:03 PM
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Correct, don't block it off, it's used as a bleeder for the vacuum transmission line.
__________________
83 SD 84 CD
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#27
02-12-2013, 06:46 PM
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You can pull good ones from a junkyard car, or you can buy new ones on this site. Search the parts section for "vacuum".
__________________
1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino http://i.imgur.com/LslW733.jpg The Baja Arizona Oil Burners Send a message if you'd like to join the fun  Left to Right - UberWasser, Iridium, Stuttgart-->Seattle,, mannys9130 Visit the W123 page on iFixit for over 70 helpful DIY guides!
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#29
12-07-2013, 04:15 PM
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The picture in this thread with the yellow check valve is not quite right. The wye (3-way connector) should be BEFORE the check valve. The check valve allows the door lock vacuum reservoir to be charged and then creates a closed loop vacuum circuit to operate the door locks when the engine is shut off. The black cruise control line, green HVAC line, brown engine shut off line and yellow check valve should all come off the second brake booster line independently using a 5-way connector. The tranny control and EGR come off the first brake booster line. And yes, the tranny vacuum line should have a black vented line going into the firewall.
Last edited by hamrt; 12-07-2013 at 04:31 PM.
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#30
12-07-2013, 07:17 PM
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Actually the picture is accurate. Same as my 1979 300D. The cruise control potentiometer/vacuum can on the early W123's shares a check valve with the door lock system and vacuum reservoir.
Additionally, since his car is a 1980, there's a good chance it does not have a vacuum controlled transmission, same as my car. So no vacuum lines for that at all. It might not be indicative, however, of later W123's. They have a much different vacuum system.
__________________
1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino http://i.imgur.com/LslW733.jpg The Baja Arizona Oil Burners Send a message if you'd like to join the fun Left to Right - UberWasser, Iridium, Stuttgart-->Seattle,, mannys9130 Visit the W123 page on iFixit for over 70 helpful DIY guides!
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Linear Mode
