Got a quick question....what is your engine rpm @ 60mph? Mine is at 2600rpm @ 60mph...doesnt that seem high? Is the torque converter not locking up or something? Just seems a bit high....
83 300D Turbo...I can feel the car shift into all 4 gears...it slips a little going into 4th which im not suprised about because the car has 313k on the original transmission..I have a spare good transmission but I'm just curious about the high cruising RPM for now..
Thanks in advance!

Mine does 2600 at 60....thats normal....when I cruise at 80 its over 3100rpm As for the transmission, I don't think these have a locking torque convertor...do they? I never read that they do anywhere....our van does, but its...far newer....I don't think these ones lock up. Mine slips going into fourth if its colder or I am accelerating quite hard.....and its only at 219,600....eh, it will live. Can always replace a tranny.

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yeah i think that the engagement point is very low on them.....seems like benz was obsessed with the "smoothness" of the low engagement point....only thing I dont like about my D is that it likes to try to drive thru the brakes because of the low engagement point...yet the 2nd gear shift in all of them is like having a shift kit in a TH400 lol

Yep those first couple of shifts are pretty quick, I'm also at 2600rpm at 60 mph. And I also have a slight flare on those cool mornings on the 300dt. Probably due too its current race life? I bought ours has 175,000. miles

82' 240d Suzy(wvo)
82' 300dt Lizzy

I know it's a different car, but for reference:

My 91 300D 2.5 Turbo cruises at about 2250 rpm @ 62mph/100kmh, and about 2700 rpm @ 75mph/120kmh. I imagine this is about normal because the car only has 88000km on it.

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1991 MB 300D 2.5 Turbo (207000km) (now gone)
1993 Audi 100 CS Quattro (300000km)
1999 VW Jetta TDI (290000km)
2002 Audi A6 3.0 Quattro (150000km)
2005 MB E320 CDI (34000km)

I bet my 240D is turning about 3400 RPM's at 60 mph. Wish I had a tach so I know for sure. 46xx RPM is about 85 mph, or so my manual says. I guess one of these days I'll write down the max RPM's for each gear.

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