This M-Benz can filter should be added to car after odometer adjustment for most chasis model, EXCEPT for W222/W205/W447, those 3 chasis models should add canfilter before odometer adjustment.
Yanhua CAN Filter 18 in 1 Support Model:
S (W222) C (W205) V (W447)
S (W221) C (W204) E (W212)
E (W207) A (W176) G (W46)3
ML (W166) SL (R231) GL (X166)
B (W246) CLS (W218) SLK (R172)
SLS (W197) CLA (W117) GLK (X204)