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Old 08-08-2002, 02:03 AM
Posts: n/a
my 1983 300sd

hi everyone. i recently got a 1983 300sd with 183,000 miles on it. i have a bunch of questions because a bunch of little things need to be fixed, but maybe i'll only get into a few things now.

first- is there anywhere to get a parts number list for this car? perhaps with a diagram, so that i can see what needs replacing and then just note the part number? because i don't have anything like this and i only know so many technical names for parts, i have to describe the parts the best i can.

the black plastic elbow tube that connects to where the air filter is (this tube is probably about 3" in diameter, its not a little tube)- it has a crack in it. it needs to be replaced. the engine raddles a bit when its idling because of this. once given any gas, it stops immediately because there is enough suction to pull the crack closed. anyway, i don't know what the part number is or what that piece of plactic tubing is called- can anyone help??

i have never owned a diesel car before, but i am concerned about the spots the car leaves on the driveway after being parked for a bit. there is a little bit of oil, but it seems like fuel is leaking too? it is not oil- and when i bend down to smell it- it smells like diesel fuel- but that may just be coincidence. but whatever that is, it is leaking much more than the little spot of oil the car leaves. i really don't think it has an oil leak. its this other stuff that concerns me. maybe this is normal for a diesel car, but i wouldn't know- i've only had this one for a few weeks. any ideas? could these two problems (if the second is a problem) be related?

other things that need attention are:
cruise control doens't work
power locks don't work (previous owner cut(?) line [in trunk])
both driver and passenger seat don't move up and down- power seats work fine every other way. you can hear the motor when you push the lever to have the seat move up or down- but the seats don't move.
vacuum modulator needs adjusting (sticking 2nd gear)

i have no idea how much any of this stuff costs to fix. maybe the problems are being caused by something small- but i wouldn't really know.

thanks for all the help regarding the things i mentioned.

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Old 08-08-2002, 04:17 AM
Registered User
Join Date: Nov 2000
Location: Vernon, CT
Posts: 1,848
First, welcome to "club". Second, your car is practically a part number. By that I mean, just about every part in the car has a part number on it. MB part numbers are xxx xxx xx xx. Look at the oil filter housing cover, you will 617 xxx xx xx. This would be the MB part number for the oil filter. As for a parts breakdown goes, you would have to call a dealer to inquire. I e-mailed MBUSA about getting one for my '83 300TD and was told to go through a dealer.
For your hose from the air filter, which BTW is called a breather hose, look carefully, you should see a part number. Basicly anywhere you see a star, it is followed by a part number. Even that little rubber elbow that attaches this breather house to the valve cover, has a part number on it. That to starts with 617. BTW 617 is the engine series number for the 5 cyl., turbo diesel engines.
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member
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Old 08-08-2002, 11:32 AM
j shepardson
Posts: n/a
wanted to throw in my $.02 mentioned a smell of diesel fuel. I have the same year model car you have and I had the same problem. I found one of the fuel lines which are made of a cloth material had a crack in it.
look above the injector pump the lines are little arches runing from one cylinder to the other check to see if the lines maybe loose or cracked, wet what have you I would start there.

also the oil that comes from the top of the engine to the air filter does smell like fuel as well with your breather hose cracked oil will leak out of the breather and down the sides of the engine gets really messy after awhile

2. if the power locks dont work; yes, check in the trunk first.
pull out the trunk carpet over the passenger side wheelwell you will see I belive from memory 2 lines one of these lines will go to a motor inside of the spare tire compartment make sure this line is hooked up there, that is where the main vacume for the locks comes from. also to test the motor have a frend lock your driver side door while you listen to the motor you should hear a whining sound.

if that works and the line is hooked up you might have to retrace the lines at the door cylinders to make sure they are not leaking there. there are plenty of step by steps in the diesel forum might want to try a search there

3. the cruise control is a strange thing most of the time the guts of the amp just need to be resoldiered check the deisel forum for more info on that there are several handy threads there that will walk you through many questions you have

Welcome to the board!!!

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