Audi ECU Up for sale is a Working, in excellent condition Audi convertible v6 ECU. Audi part number 8D0 906 266B (8D0906266B), MMS-411B made by Hitachi. This will fit many V6 Audi models from the 95-98's, (it was from a 1997 Convertible) your best bet is to match the part numbers with the part you need. I also have one of these that came out of a 2.8 A4, has the exact same audi part number, looks exactly the same, however it is an MMS-411C . IF you want this one, just ask and you have it. As far as I know they should be the same, but check with your dealer. This is one of the most common no start or random stalling problems with these Hitachi ECU's. If yours does not have this problem, keep an extra ECU in the trunk, you might some day be glad you did... These units now have to be special ordered from most dealers new for big $$ cheapest list I could find for a new one was over $1600, and finding a good one second hand is getting to be a very hard chore. If you have priced one of these new, you probably were quite shocked at the price.