Mercedes Diesel ECU Up for sale is a Working, in excellent condition Mercedes ECU. Bosch Part number-- 0 281 001 039 (0281001039), mercedes part number-- 004 545 49 32 (0045454932). This ECU came out of a w201 chassis Mercedes 190d 2.5 Turbo Diesel. May fit other models/years, but as always your best bet is to match the part number to the one on your ECU. This is can cause a variety of different issues with these cars, tach, egr, transmission can all be affected by this. If yours does not have these problems, keep an extra ECU in the garage, you might some day be glad you did... 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.