W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

Checking tranny fluid level

Hello, James here. OK I changed the filter on my tranny , per your instructions, everything went just as described. Only I am having one hellova time getting my fluid level right. I followed your inst to a T and yet somtimes it looks empty and sometimes its so full its way beyond the hash marks... If you Over fill ...what is the consequense? Other than fluid comming out the overfill hose? Stuck in a weird cycle of fluid ellusion James 82 123 300TD

Chassis Model Number

W123

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Diesel Engine Specific Aid

Thank you Mercedessource

Hello, Just thought Id drop a note to say thanks to Kent and Kaia and crew for all they do. I would have given up on my Mercedes WVO project long ago if not for thier help and advice. I love the philosophy of learning to work on your own car. Reminds me of my early wrenching years on my old volkswagons...Germans really know how to build, if only they could make that 'one bolt' more accesable- thoes of you who work on these machines know what I mean- at any rate... Keep it up!

Chassis Model Number

W123

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Body and Interior Specific Aid

Air in the radiator lines or...

Hello ALL! James here. Guess what? My car dont like the cold, below 20 that is. At any rate I purchaced the engine warmer you guys at MS sell and it was easy to install with the helpful instructions.... though I do have one question about the 'air in the radiator lines'. Does there have to be constant fluid throught the entire system, including the top hose? Even when off? How can I be sure. I have drove the car for a few days and I have not plugged in the heater yet- we have had a mild winter so far, but I just want to make sure that all is well before I do.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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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Diesel Engine Specific Aid

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Chassis Model Number

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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Body and Interior Specific Aid

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Chassis Model Number

W123

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.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

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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Body and Interior Specific Aid

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Chassis Model Number

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?

Forums

Diesel Engine Specific Aid

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Chassis Model Number

W123

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