Mercedes Bosch Control Unit ECU 

Up for sale is a Working, in excellent condition Mercedes Engine Control Unit. Mercedes Part number-- 

017 545 44 32    0 280 002 575

This unit is out of a W140 S420  This should also work with E420 models with the same M119 4.2l v8 engine, however it is the buyers responsibility to find this out, as I don't know that for sure. Your best bet is to check the part number of the ECU you are trying to replace with this items part number to make sure they are the same. These units now have to be special ordered from most dealers new for big $$ (often times several thousand bucks!), and finding a good one second hand is getting to be a very hard chore. Mercedes LH / ECU / MSG / Engine computer control unit module. Fits -W124 W 124 E420 E 420 400E 400 E 1993 1992