Turbo Diesel Mercedes ECU 

Up for sale is a good working Mercedes diesel ECU that should fit some late model W126 6 cyl Turbo Diesel models. 300D, 300SD 300SDL 350SD 350SDL and 300TD

Bosch part number 0 281 001 125    011 545 98 32[04]

Unit was removed from a recent insurance totaled crash damaged 350SD

This may even fit other models/years not in this range, but as always its your best bet to match the part number with your original. This is can cause a variety of different issues with these cars, tach, egr, transmission shifting can all be affected by this as this is what controls these functions in this car. This ECU is also a "pass threw" for other functions, and if faulty can cause a whole host of strange problems including transmission shift issues or non running. If yours does not have such 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. Runtested & functional and offers a 30 day warranty. This is a VERY hard to find part.