Hi All,
I'm spending some time with a 83 240D (176K miles) tomorrow with a "bad" transmission and might buy it if the price is right. The body is solid- it's sat for approx a year- 6 months ago when I looked at it - it started right up. The reason for "bad" being in quotes I'm not certain the tranny is toast and I'm hoping for some insight. It's an auto- when you put it into any gear - you can feel the transmission move but it doesn't engage in any gear. Transmission fluid level is good and doesn't smell burnt. Could this be as simple as a vacuum issue? What about the engine sitting so long without running?
Thanks for your help!!

Sounds like a B2 piston issue, prolly a bad seal. I wouldnt worry about the motor sitting, a year isnt to bad.

take a look
http://dieselgiant.com/Mercedesb2pistonsealreplacementl.htm

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

If it started right up then there is no problem with it having sat for that long... my 81 wagon sat for 18 months and started immediately ... with the old fuel ... and TxBill drove it for several years after that...

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Mine sat outside for 2 years before I bought it.... Now it's my DD. I've put almost 3k miles on it in the past 3 months.

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1981 300TD 4 speed manual
Euro bumpers, zender valance and skirts, H&R springs, billy HD's, leveled sls, real AMG Pentas 16x8 et11, vdo boost/egt gauges intergrated into ash tray, eurolights, led 3rd brake light

Sort of echoing the others but if it started like that after sitting, I suggest you go for it and solve the tranny problem after. Even if worst comes to worst, and it may well not, a used tranny for that car is a hell of a lot easier to find than a decent used motor, voice of experience here.

Your location isn't showing in your info. If you are in the northeast... and/or if it was sitting on grass or swampy ground, make sure the floor or rockers haven't taken a hit from moisture, that's all. You need to check from under the car, you can't tell from pulling up the floor mats.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

Thanks everybody for the replies! I'll update what I find tomorrow with pics. As far as the B2 piston that doesn't look like it's a big deal. Fingers crossed and hope that's it!