W123, SVO/WVO parts

1977 300D sluggish after warming up.

I'm pretty new at these 5 cylinder diesel motors. Could someone point me to the temp sending unit? My temp gauge does not work and I wanted to start there to troubleshoot. I have not had this car very long, but I did notice that the secondary cooling fan was disconnected as well. I suspect that this is due to past electrical issues with various sensors (if this thing is anything like my 84' BMW) and was disconnected. It also seems sluggish lately after it warms up. However this may due be due to an over tightened alternator belt, possibly causing the heat to go up? (just put in a new regulator and I will check that out today)(this happened on my BMW when I tightened the belt too tight).

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W123

#1 Replacing Steering Gear Box / #2 Odometer quit (Not related to #1)

Replacing the steering gear box with a rebuild on a 1982 240D and wondered if there are any landmines I should look out for? I can't find any instuctions except mark a point on the shaft, and it appears to be faily easy. Of course that is why I am especially worried. (Also -how long should this typically take?) By the by...my odometer quit this AM at 248,884...everyng else works. Where should I start diagnosing? IE what is typical cause? I noticed it was slowing down - not accurate (less miles than actual) just before it quit. Thanks

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$89.50

617 Turbo Diesel Engine OEM Front Crank Seal Replacement Kit

All 300SD 116 and 126 from 1978 to 1985, and all 123 TURBO diesels 300D 300CD 300TD from 1981 to 1985. FREE PDF and VIDEO instructions included.

Alda Hose connection question

Hello, I abought a replacement alda hose from you guys at Mercedesource this last summer and when hooking it up I had a question. Where the 2 alda hoses connect- the barrel attached to the firewall with 3 prongs sticking off. 2 prongs on top, one blocked the other runs to the fuel injection appreatus, the other prong on the bottom running to the intake/exhaust manifold apperati...my question is this... Is there a coorect way for these hoses to be conected at this barrel. I just looked at other cars and guessed, it runs fine but its just something that has bugged me.

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W123

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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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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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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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