1985 300D ATF drip - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 06-07-2011, 07:49 AM Thread Starter
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Date registered: Jun 2011
Vehicle: 1985 300D Turbo
Location: Austin, Texas
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(Thread Starter)
1985 300D ATF drip

Hello everyone, I am new to the world of Mercedes, heck I haven't even owned a car in 10 years!

Anyways, I recently purchased a 1985 300D turbo and took it in for an inspection. 45 minutes later they called me and said my transmission is leaking and quoted me 3660 for a new transmission! I find it a bit strange that they would say this first before even locating the leak. Wouldn't protocol be cleaning all the fluid off so that you can pinpoint the place of leaking?

Wanting a second opinion I took the car home and put some cardboard underneath to monitor this leak. In the morning there was a small mark from light dripping. I was told that If the leak originates from the pan gasket, dip stick housing or oil cooler line fittings it will usually continue to leak with the car sitting. Is this true? Would fixing this sort of leak require removing the whole transmission?

Thanks for your time in helping a newbie!
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post #2 of 3 (permalink) Old 06-07-2011, 09:42 AM
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Date registered: Jun 2009
Vehicle: 1991 300E
Location: Maryland's Eastern Shore
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I see you've already found your way to the W123 Discussion Forum devoted to those cars and posted your question there. Good. Using the Search tool will usually find the answers you need as there are very few new questions/problems with a 25+ year old car.

Please consider completing your profile also, including year, model and location. That information can be useful to those who might be inclined to offer help.
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post #3 of 3 (permalink) Old 06-07-2011, 10:20 AM
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Date registered: May 2005
Vehicle: '07 GL320CDI
Location: Albuquerque
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Obviously anything you can get to without removing the transmission does not require removing the transmission.

Could be input shaft seal, which would require that.

Whether you need a new transmission or not depends on how it operates and NOT on whether it's leaking.

Kent Christensen
'07 GL320CDI
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