W123

Can't Find 123 Euro Blower Motor Switch

I cannot find a replacement 6 pin fan (4 position: 0ff and low-med-high)control blower level switch ( I am sure it is Switch # 46 Pages 285-286 of the 75-85 Haynes Diesel 123 Book) which is both mechanical (wire) and electrical. It is placed in the middle of control panel's three switches and I know it has a ribbed black plastic with inner metal housing with a decent weight to it. Besides a Mercedes dealer could anyone tell me where I can possibly obtain one? Right now I am jumping the connector to stay warm. This car has no air cond. Thanks.

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W123

Vaccuum Problem - suspect Pump or?

I am purchasing a vaccuum tester and Kent's book becuase I likely have a vacuum problem based on these issues: Automatic Transmission shifts too early(fluid was changed); door locks sometimes work -usually they don't; Left front disk brake kicks in 1/4 -1/2 second after right. Lines appear to be in good shape..as well as vaccuum levers on valve cover- but I am thinking could be a main check valve (or other valve) problem. Not sure whether to do the vaccuum pump rebuild kit yet - until I read the book anyway. Anybody else experience these symptoms?

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W123

Cold Weather issues

Hello, About my 123 300TD... it takes forever to start in 19 degrees! Other than this it fires right up. I have added the anti-gel, but is there anything else I could do? I dont have the plug in thingy on the engine to warm her at night...soo....any suggestions etc... my first winter with a diesel and Im wondering how I will get to work if my car draind the battery trying to start when its 19degrees or below? Thanks James

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W123

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Fuel system troubleshooting...

Hello, My 82, 123 300TD is having fuel issues. I get 20 mpg! The engine runs strong, it has 250k on it. I purchaced the car about 6 mo ago... I used the diesel purge system you have with good results, all my filters are clean and new, and yet it still gets 20 mpg. I get a small amount of blow by, but even still I think there is a fuel problem somewhere. Do you suggest replacing the nozzels to start with? I am about to order the injectors and thought I would ask first. Is this a simple job, I saw you had tools for this and was going to order as well.

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W123

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Acceptable Diesel Blow by?

hey again 1981 240d less than 100k i have some blow by. from the oil filler hole. what is normal/acceptable? the car sat for years and i read somewheres on this forum that this can casue sticky rings. engine has power and i even go out on the cold 27 degree mornings here in north carolina and the car fires up with out a hitch. the oil cap dances pretty good when it runs. very little engine smoke too just a very light black smoke on start up . hardly visable. the amount of power this little monster has on the road makes me wonder what all the other 240d owners are griping about. so ... anyone else have blow-by on their little 2.4?

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W123

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Cam shaft oil starvation

hey all, i am new to MB and new to diesels. i am learning as i go. i have worked on many cars but diesel is a new game for me thanks for your time.. i have a 1981 240d with a 4sp. seems like it has a lot of power. she has less than 100k but there is a little blow by... my question today is about the cam shaft i did a valve adjust (my first on this type of vavle set up) i am noticeing that the second cam lobe from the front seems to not have any oil on it after running the engine. . with the engine running the oil is squirting out of the oil tube but not on the center of the lobe. the 1st cam lobe is always dripping with oil and the oil squirts dead center.

Chassis Model Number

W123

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Dead 81 300D - No Start

Haven't had time to troubleshoot this, but I thought I'd throw out the symptoms to keep me away from any dead ends. 1981 300D, 200K: 1. Started and drove car twice in AM yesterday. 2. Sat for 3.5 hrs and then was completely dead- no starter action, no lights, interior lights work, some dash indications, all dying when cranking attempted. Chattering coming from glow plug relay. 3. Given the totality and suddenness of these symptoms, I'm wondering about a short that just happened during this short interval of rest. 4. Tried jumpering - no response, and the cables got warm at the source vehicle.

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