yep paid more attention today and probably starter button or have to see if you can modify the switch.

have an idea for the arduino setup you were working on. preglow the glow plugs for 2 minutes when you open the drivers door, once the car has reached operating temp, or is warmer than is needed to start the motor have it lock out the function, so it doesn't start a cycle when you get out of the car. by the time you get in put your sear belt on and turn the key the car should be ready to start.

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"NEW" 1984 300D TD needs some love