In 1994 MB introduced dust filters to the 124 chasis that sit on top of the blower motor at base of windshield. I need proof, besides the model 124 129 1994 MB intro book, that says that '94 was the first year for the dust filters. The MB parts fische only has foot notes 16 and 17- with and with out dust filter, the system they use now at the dealers says the same. If some one has the Job fische the op code is 8381, Im wondering if there is anything mentioned during procedure.