the e300D is only 6 cylinder and the turbodiesel only came in the W210 and the W140 chassis. They are very powerful engines and rev like a petrol engine. The NA engine was used in the W124 and W210
They push some heavy torque
the posting above is measuring the NA 606.910 engine which is 134 hp (like my w124) - but the turbo one mostly found in w210 pushes 243 lb/ft @ approx 1800 rpm which is quite a lot honestly and delivers a peak of 177 hp @ 5000 rpm.
The turbo engine was used in the 210 and 140, E300D and S300D
There are also marine variants of this engine too.
their drive is like this.
shifter to D from standstill
press the accelerator pedal 40%, the car slowly moves ahead from 650 rpm to 1500 rpm, at this point the snail is about ready to blow hard - other cars have already accelerated, at about 1700 rpm the turbo (snail) screams into life and the car starts to gather speed like aircraft ready to leave terra firma (literally the star is a bit elevated too), you catch up with all the cars that accelerated away and leave them in the dust as the transmission smoothly modulates the torque curve to keep the car accelerating.
The only stupid issue this engine has is siezed glow plugs.