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Looking for W123 ACC wiring diagram
Like so many others during the dog days of summer, I am trying to repair my ACC. I have a 1985 300TDt. I just recieved the service CD today, and the wiring diagram was badly scanned and is iledgeable.
Does anyone have one they could email me? I am trying to get the hang of this ACC system, and a clear wiring diagram would really help. I can see it is all about testing all of the components and fixing what is bad. The service manual is very helpful, and just spending time studying it has already shed some light on the system for me. Next is jumping past the pressure cutout on the dryer to see if the compressor will engage. I have already made it run by supplying voltage directly to the clutch. The next thing is AC gauges so I can see how the R12 is looking.
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Doug 1987 300TD x 3 2005 E320CDI |
#2
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I had intended to refer you to Braingears (http://mb.braingears.com/) but the site isn't working tonight -- or my browser is just being stubborn.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#3
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Braingears is the same!
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Having just purchased the maintenance disc, I expected the wiring diagram for the climate control, which is illegeable on Braingears, to be clear on the disc, but it is the exact same scan! I guess I need someone who has the print version of the factory manual.
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Doug 1987 300TD x 3 2005 E320CDI Last edited by Brian Carlton; 08-05-2006 at 10:41 AM. |
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The schematics are easier to read if you print them out from the Service Manual CD. And sometimes a magnifying glass is helpful.
Dave
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car |
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I just tried this with my 123 disc and it does seem to help. All the wiring color codes are readable when printed but some of the lines fade away. If this sounds any better than yours, I can email you the 19 pages of adobe files (might take a while!). Klaus
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‘84 300TD “Mountain Goat” '62 300d Adenauer-350 Chevy - "Max" '15 VW Passat TDI '16 Dodge Ram 3500 - Cummins w/6-speed '68 Mustang fastback '55 T-bird ‘63 Studebaker Hawk |
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I'll need your e-mail address (you can just send it to me in a PM). Do you have any issues with file sizes (speed of internet service, or limitations on the e-mail account)? |
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MB W123 Manual
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I just want to make sure that the manual is good and covers everything I need. Presently, I want to see the remove/install for the front wheel bearings. I have a Haynes Manual for my 96 C220 and I like the content and presentation. If the MB fsm is the same as Braingears, I have to think twice about it.
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the sooner you start... the sooner you'll get done If it ain't broke, don't fix it.. Its always simpler to tell the truth... 2007 Honda Accord EX 2007 Honda Accord SE V6 96 C220 97 Explorer - Found Another Home 2000 Honda Accord V6 - Found Another Home 85 300D - Found Another Home 84 300D - Found Another Home 80 300TD - Found Another Home Previous cars: 96 Caravan 87 Camry 84 Cressida 82 Vanagon 80 Fiesta 78 Nova Ford Cortina Opel Kadet 68 Kombi Contessa |
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I believe I have the same CD as you. The wiring diagram that is linked off the web interface is for the older models. You have to go the CD directly and go to {CD}\program\Climate\83-600a.pdf .
The wiring diagrams are still crap, but the pinouts on the wiring harnesses are fully legible and probably a good place to start tracking down a signal problem (it's what I used to find that my blower regulator was cashed).
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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD 1979 300SD 245K miles (never ending project) 2007 Pinarello F3:13 1995 Ducati 916 (SOLD, sniff) 1999 Ducati 900SSie (SOLD) |
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