If I am reading the EPC correctly, I think it is either: A 017 545 26 32 or A 017 545 22 32.
You should probably confirm the number with a Mercedes-Benz dealer parts department to be sure, as they are more familiar with looking up this type of part. You should be able to get them to give you the correct part number as part of a pricing quote for a replacement engine control unit.
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