W126, BENZ AID - COMMON QUESTIONS AND ANSWERS | Page 255

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

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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).

Forums

Diesel Engine Specific Aid

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Questions and Answers

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