81 300SD oil leak & Fuel Injector Leaking

[topherba2010]

I have a 1981 300SD. It is leaking oil around the tube that goes into a round base on the front. I've found the threads that tell me what it is, but where can I get the parts to fix it and what do I need to fix it?

I also have a fuel injector leaking Diesel... I've looked on google, I find parts stores that say they have it, then when I go to order it says out of stock... Does anyone have any good leads on where I could get a couple fuel injectors?

I also have a 1980 300SD and both of the cars do not have air blowing out of the middle vents. I went through the vac lines on both cars and fixed all leaks and now have a very smooth shifting transmission thanks to the advice I found on here, but I cannot get air to come out of the middle vents. Is there a vac line inside the dashboard that could affect this?

[toomany MBZ]

Not sure about the tube, can you post a pic?
Click on the buy parts button at the top of the page.
Make sure you have the levers in front in the open position, air should blow out of them when the CCU is in the economy mode.

[Diesel911]

Most often the Injector leaks are caued by old Fuel Return Hoses.
For a local source in the USA NAPA; Autoparts sells it or the Mercedes Dealer.
Where to buy fuel return hose
Diesel Injector return lines, where to buy?
The Thread with the part numbers
fuel return line replacement part

If what you are speaking of is on the Passanger side front (USA models) that is most likely the Turbocharger Drain tube. Below is my recent thread but there is other threads on the subject. If the Tube itself is OK you need 2 O-rings and a Grommet made for the Job.
For the Blow-By Drain there is 1 O-ring that seals at the bottom on Oil Pan.
Turbo Drain and Blow-by Drain Seal Replacement
Turbo Drain and Blow-by Drain Seal Replacement; Mein Kampf

[topherba2010]

I'm going to try to get the air blowing out of the middle vents tonight on both. I've been trying to sell one of them and no one is interested because air doesn't blow out of the middle or because they are both diesel.

It is the turbocharger drain tube. Thanks for the link on the parts numbers. I am so blond, I didn't even realize that I could buy parts on this site lol.

[topherba2010]

Also, are you talking about the levers on the vents? I've messed with those and get nothing. I think it has to be inside the dash board.

[topherba2010]

Okay so I took the middle vents out and there is one flap controled by the lever, then inside there is another flap but I don't know what controls it. I was able to pickup the flap with a flat head screw driver and hold it open and air started coming out. I don't know how to keep the flap open. I tried a screw but I can't penetrate the casing it's in. So the new question is, what does the second flap connect to or does anyone have any suggestions to fix this issue? I was thinking of super gluing it in place. I know it will affect my defroster, but still, I'd rather have the AC than nothing.

Aside from all that, I'm in Oklahoma and I was running the car while I was doing this to stay cool and it stopped cooling. I hooked up the gauges and it looked like it had too much freon in it. So I'm vacuuming it down right now and I'll refill it and add some more oil to it as well.

[toomany MBZ]

The attachments may, or may not help.