Does the 1995 E300D still use a mechanical pnuematic valve on the
ignition switch to kill the engine via vacuum? Or does the car use an
electronic vacuum switch-over valve to kill the engine? Or does this
car use an electric actuator on the injector pump to kill the engine?

I didn't see any manual emergency stop lever under the hood like the
123's and 126's have.

Thanks for your input,

Craig