Mercedes PML Control Up for sale is a Working, in excellent condition Mercedes PML Control Init, this manages the speed sensitive power steering. Mercedes Part number-- 010 545 82 32(0105458232). This unit is out of a 92 400SEL (w140 chassis) with ASR. This should also work with the following models (from 1992-1993 only) that are also equipped with ASR:300SE [s320]400SE [s420] 500SEC [s500] 600SEC [s600] 500SEL 600SEL As best i can tell this is all this unit will fit, 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.