This MB CAN Filter 18 in 1 Benz / BMW Universal filter should be added to car after odometer adjustment for most chassis model, EXCEPT for W222/W205/W447,those 3 chassis models should add can filter before odometer adjustment.
Filter the km synchronization command between the cluster and the EZS module .
This is the only way for the correction of W221 W204 W212 W166 and X166 new models.
MB CAN Filter 3 in 1 for W222/217/205 (New Mercedes Benz S / C series)