Hey

[austincooks]

I'm new here. My name is Austin and I own my second Mercedes W123. The first was a 240d. Blew that one up with no oil in it. Ooops learned my lesson on that one. Loved that car, so found another one for cheep this one is the 1981 300d with a transplanted 1982 300 TD engine in it. This one runs good with 300,000 miles on it. It smokes a little and leaks oil also so i check it every day. I like these cars because they are somewhat easy to work on and get great fuel millage for a classic car. I have already replaced the whole front end steering and suspension. Car would not shut off when i bought it. I am having trouble with the vacuum system. was not hooked up when I got it. no egr no door locks only outside vents work in cabin. Started at egr. would not hold vacuum so i got a new one. moving up the line got to Vacuum control valves on top of valve cover. both shot and would not hold a vacuum. Got new ones. the hoses were the next problem. replaced those. The problem is the thermo vacuum valve(36a) and egr only receive vacuum when the engine is turned off? I know the cut off switch receives vacuum after the car is cut off. I have the vacuum connected as the diagram I found here shows. Also why is there a "vent to passenger compartment" that seems like it would disrupt the vacuum. Any info would be helpful.

I was trying to get this working before i moved on to the vents and door locks. Also the cruse control worked when i bought the car. I cleaned the engine to try to find the oil leaks and it stopped working. would water have messed up the electronics in that or is that just a coincidence?

Thanks for any help

Austin

[leapyfish]

Welcome to the forums
have a look in the model specific area, in your case W123 E,CE,D,CD,TD,TE Class - Benzworld.org - Mercedes-Benz Discussion Forum
you should be able to find the info there.

[F1Bobby]

Welcome to BW!