those 3 chasis models should add canfilter before odometer adjustment.
BMW:CAS4/FEM Fxx
BMW 1 series F2X, 3 series F3X, BMW X5 etc., FEM mileage adjustment( no need to remove FEM, connect dirrectly to instrument panel);
NOTICE!!
New style:222/205/217
Old style:166/212/463
CHECK the car modele correctly before adjust.
Old style W166 short circuit to GND
New style W222 short circuit to GND
Black wire connect to plug 1
YH Benz/BMW Universal filter --- Diagram for BMW
Below is illustration for wiring:
Black --------- GND Red --------- +12V White --------- +5V
Below is the diagram for BMW 1 series F20 instrument:
Package including:
1pc x Yanhua MB CAN Filter 18 in 1 Benz/BMW Universal filter