You're interchanging terms and confusing most of us.

On D-Jet cars, "trigger points" refers to how the fuel injection system is signaled. Fuel injection trigger points will get oil vapor on them and I use electronics cleaner (alcohol spray) to clean them off.

I've always set the ignition breaker points by feel on old Benzes.

Mercedes does sell points for the M117, I have bought them.

If you're burning through ignition points you need to make sure your ignition resistance is correct. Lots of people bypass the transistorized ignition, then don't change the ballast resistors accordingly, or people put low resistance wires, or resistor spark plugs in them. All that stuff can lead to a car eating points. Changing points on a car that's eating points, without doing any other repairs or research leads to... another 5 sets of burnt points.

__________________
68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i