Description Sensor without the measuring tube. Often replacement MAFs are sold on an exchange basis as a new sensor is simply swapped into the old tube, so to avoid you having to return your old one for a surcharge this is just the sensor… swap it over, chuck your old one. Job done. There are a few different MAFs used across the VAG Group, this one replaces the following VW Numbers (Found on the outside of your old MAF tube): 028906461 028906461X 038906461C 038906461D 06A906461 06A906461X 06A906461N 074906461B 074906461BX These are supplied in a sealed bag. You open the bag, its yours forever… we will not accept returns if the bag is opened unless its faulty (which almost never happens with Pierburg products!) In other words, don’t buy it and expect to be able to just “try it” to see if it fixes your problem ��
