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#1
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Oh man, where to begin...
So the son of my friend, against all advice, buys a '92 300SD W140 off of ebay, sight unseen.(
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#2
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Don't know the specifics of the 603 in the W140, but you mentioned that the wastegate was vacuum operated, and, additionally, that the door locks are inoperative.
So, this tells me that you have a vacuum leak somewhere. Get out that trusty Mityvac and start running the system. It should hold vacuum on all circuits from the vacuum pump, with the exception of the transmission vacuum control valve on the injection pump. You need to track down and plug the leak. When you do, the door locks will function, and the wastegate might function as well. |
#3
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that's a bummer, hopefully you can help him some. I bought a truck 10 years ago from a chain smoker - NEVER again. I don't drive it anymore, it's parts. Still runs and STILL stinks inside
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'82 300SD - 361K mi - "Blue" "Good judgement comes from experience. Experience comes from bad judgement." listen, look, .........and duck. |
#4
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Where was the kid's father in all this? No kid should ever own an expendsive car.
__________________
Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952. |
#5
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Quote:
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#6
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Quote:
Just wait untill he finds out that it's the evaporator leaking as to why the a/c doesnt work! $6,000 to fix.... ![]()
__________________
![]() 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
#7
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Quote:
Assuming everything's working, the problem with no boost could be that someone disabled the EGR valve. The EDS in these cars holds boost for ransom if it doesn't sense that the EGR system is working as determined by the EGR temp sensor and a commensurate drop in air flow. Sixto 95 S420 87 300SDL |
#8
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#9
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Yes, I told them to take it to the dealer and have them plug into the computer and check it's health. If the computer's ok, I should be able to get things working, otherwise it's up to them what they do.
How do we check for a leaking evaporator? The dash has obviously been out of this thing more than once already.. ![]() ![]() |
#10
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Quote:
as one of our members is fond of saying (I forget who) A cheap mercedes may be the most expensive car you will ever own....or something like that.
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#11
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The 140 is a whole different beast entirely.
I'll admit, I know very little on the diesel 140's as I have seen VERY few of them, and worked on as many as I can count on one hand. In the trunk is a PSE pump for the central locking as usual, similar to the 126 pumps, but more advanced. I don't believe it controls anything but CL and closing assist (maybe another tech can offer some more insight on this). Correct me if I'm wrong but that car should have EDC, Electronic Diesel Control. Get the car to a place with an SDS machine (independent MB should have this, as well as a dealer) and they will be able to tell if its a computer issue with the system not actuating the valve or something mechanical.
__________________
![]() 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
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