Mercedes Benz repair: 1985 MB 190E, mb 190e, bowden cable

Question
When I shift into any gear from park the car lurches. It's a very hard jolt. the engine itself jumps as well. Sounds and feels like I'm going to drop the engine in the driveway.

Answer
Not enough data.

Question #1. Engine idle speed?
Question #2. Engine/transmission mounts condition?
Question #3. How many miles on this car?
Question #4. What service has been done in the last six months?


Best guess without further data:
* Transmission kickdown switch bad. located under accelerator pedal, unplug and test shifting.
* Bowden cable damaged.
* Vacuum modulator bad.
* Valve body gummed up.
* Engine idle speed too high.
* Engine/transmission mounts bad.
* Too many miles = worn out.