Netural safety switch - 2000 BMW 3 Series

Might be neutral safety switch or range sensor. The link below has some info of bad switch. #4 is will start in any gear.
https://www.carbibles.com/malfunctioning-neutral-safety-switch/
Link below say states he found out the range sensor had been bypassed
https://www.thedieselstop.com/forums/f30/replaced-netural-safety-switch-truck-still-starts-any-gear-301817/

Ford Windstar bypass safety switch Questions & Answers (with ... - Fixya

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Ford Windstar cars & trucks bypass safety switch questions and answers. ... 2000 ford windstarwon't start after changing safety neutral switch? ... ...neutral switch on a 1997 ford taurus I`m looking for the netural safety switch` have replaced ...

Any neutral safety switch can be jumpered around with a short piece of wire.

There is no neutral safety switch with a manual transmission ! It has a clutch start switch located on the clutch pedal arm ! LT Green an purple an white wires !

It should be located under gear shifter if it's bad car will usually start in netural I will post a diagram when I have time hope thi

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A Neutral Safety Switch Prevents Electrical Current from The ignition Switch to the Starter When the Vehicle is in drive or reverse...So the car doesnt start in gear ..

the neutral safety switch is located on the sterring columm

the neutral safety switch is on the metric tranny with wires coming out of it up to the engine

Vehicle will not start (I assume you mean won't "crank" / "turn-over") until wiggle gear in park or neutral - Replace the Neutral Safety Switch. First check terminal connection (plug)) if okay replace Neutral Safety Switch. The Neutral Safety Switch will not cause the vehicle to shut off while driving.
To diagnose stalling - next time it stalls and doesn't start check for spark and fuel. With no check engine light or codes mentioned in your post also indicates it is a spark or fuel problem (ignition problem/not emission problem (the sensors)). Keep smiling.

It could be But my guess is it is the safety netural switch could even be a starter you can test it but you need jumper wires with aligator clips, you can try turning on the lights and turn the key switch over and if the lights dim slightly then it means it is making contact and pulling volatage but not starting, if the lights don't dim slightly then it could be the safety netural switch. If you can work with jumper wires and a couple safety stands I can help you test it.