I have a 1983 MB300 turbo deisel. It has an automatic transmission that shifts hard from first to second. Is this normal? Several people I have spoken with say this is typical but I don't agree. Oh, it has 124,000 miles if that makes a difference.

Check the vacuum system for leaks -- the 617 has a vac amplifier and a controlled leak system to supply a vac signal to the modulator on the tranny for shift feel, and if you have low vac on the modulator for some reason, you will get hard shifts.

If you drive hard, with your foot down pretty hard at the upshift point, a very firm shift is normal. It's much worse if you floor it through the kickdown switch on takeoff, then lift your foot to upshift!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

Mine does it as well at 219,600 miles and there are no vacuum leaks. I've just learned to live with it.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

Same outcome here. All shifts are fairly firm (Buy not harsh) with the 1-2 always with a good thump. 3-4 is smooth vs. all others. 4-3 is VERY hard with a strong clunk when slowing down.