Hi bought a new lock assembly - it's for a w116 300 SD Turbodiesel (1980). It came without the black plastic contact switch. See attached picture - item number 8.

Not sure what this switch is for (US market only).

I have a lock assembly from a gasoline car with that contact switch attached. I want to take this switch from the gasoline lock assembly and put it to the new Diesel lock assembly.

How can this switch be removed?

thnx
Sebastian

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'80 300 SD, 300k

That is the switch for the NHSTA mandated anti-theft warning buzzer. It gives you the alert you left the keys in the switch when leaving the car. This is why it is only on US cars.

Not needed for the car to run. If you can't figure out how to get the switch to transplant from the old one just leave the connector unhooked. You just won't have the key in switch warning so be careful when leaving the car. But if you are like me, I always use the key to lock the car, so the keys are in my hand when I get out...

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech