Check trans fluid level. Running? - Mercedes-Benz Forum
 
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post #1 of 4 (permalink) Old 11-27-2018, 05:28 PM Thread Starter
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Check trans fluid level. Running?

I have 1981 380SL and the transmission has a long shift between 2-3. But after a few shifts and the engine gets warm it shifts great.

So I checked the fluid tonight after letting the engine warm up to operating temp. Do you check the fluid with the engine running or shut off?

I did it both ways. First with the engine shut off and it looks like its too full, past the full line.
Then with the engine running and it looks low, see photo.

If its low, how much ATF do you recommend I add?

Thanks as always.
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post #2 of 4 (permalink) Old 11-27-2018, 05:37 PM
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Should be running and done after short drive to warn transmission fluid up. Don't they have instructions in owners manual?


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1972 350SL 4.5L, E320, 300D, Outback 2.5 - near Kingston, Ontario
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post #3 of 4 (permalink) Old 11-27-2018, 06:24 PM
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@GlueckAuf did an excellent write up about changing transmission fluid.

Here is the excerpt on how to fill to the correct level.

7. After driving the car for about 30 minutes, it should reach the prescribed 80 C/176 F operating temperature. Park the car in a level spot and leave the engine running. Move the transmission selector lever from P to R-N-D-N-R and back to P, pausing in each position for a few seconds. This ensures the servo pistons are filled with fluid. Recheck the transmission fluid level and gradually add the fluid necessary to bring it to the MAX level.


I tried to post the whole document, couldnít figure out how to do with the IPad.
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post #4 of 4 (permalink) Old 11-28-2018, 06:00 AM
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Originally Posted by RLT61 View Post


I tried to post the whole document, couldnít figure out how to do with the IPad.
It's in the EGv107.
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