I have never drove a Mercedes 4 speed, but both my Isuzu, and Opel had awesome transmissions. I used my clutch to get into reverse and 1st only. The Isuzu, I was able to shift up to 5 and back down w/o the clutch. The Opel was identical, but had a 4 speed. Royal purple gear oil, and as long as your rolling, it could get into gear.

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1982 300DT *4-speed*// proper 617 donor for conversion // W126 big brakes // front wagon swaybar // european lights & bumpers // rear headrests // lumbar support // warning triangle // overdrive water pump pulley & 9 blade fan // Too many more to list Dark blue/ Palomino.

1983 300D euro no longer a 4 speed. . swap/parts carr