New to the hobby with a 1980 240D, auto trans. I would like to change all the fluids & filters, adjust the valves, diesel-purge, etc. Perusing the posts seems to indicate this is a unique trans, compared to later years or the 300D. Can anyone shed some light on the unique aspects, problem-spots, etc? Also, I was looking for the trans fluid drain bolt on the pan and do not see one! I am also told this trans has no interchangeable filter? I will roll underneath and copy the trans number, but was hoping someone knows these transmissions. Any advice is appreciated.

Interchangeable? With what should your transmission filter interchange?

Give 'im a break...he probably meant replaceable.

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1995 E300 Diesel
2002 GMC Duramax CC LB 4X4

Welcome to the forum!

Dex III for the oil. No drain bolt? It is usually a hex "button head" type bolt. If not, then just drop the pan. Not a big deal. The 1980 240D AT has a filter. Parts are available here at the top of the page. Here is the link to your filter:

http://www.allpartsexpress.com/ShopByVehicle.epc?q=1980-MERCEDES--BENZ---40d--/--L4--404cc--.4l--Diesel--Fi-Transmission&yearid=1980%40%401980&makeid=MERCEDES+BENZ%40%40MERCEDES+BENZ%40%40X&engineid=1192979%40%40240D++%2F+L4-2404cc+2.4L+DIESEL+FI%40%40240D&catid=Transmission%40%40Transmission&subcatid=A%2FT+Filter+%26+Pan+Gasket+Kit@@A%2FT+Filter+%26+Pan+Gasket+Kit&mode=PA

Nothing special or out of the ordinary about that car or trans.

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AJ

1985 300D (SOLD)

Yes, meant replaceable filter. No drain bolt in the bottom of the pan, but a hex bolt at the bottom of the torque converter, which I will also rotate & drain. Thanks for the link to the filter. One more question; the trans appears to be flaring on the 2-3 shift, but only when warm. I checked the vacuum system for any obvious leaks, (don't have a vac gauge for a complete test) and things look OK. Puzzling that it shifts perfectly for the first 15 minutes or so, but then starts to flare. I would think a vacuum issue would not be heat-related. Any thoughts?