VW/Audi ECU Up for sale is a Working, in excellent condition 1982 Audi 4000 ECU. My list shows this fits many 82-84 4000 models. VW/Audi part number 035 906 263 E (035906263E) , Bosch part # 0 280 800 057 (0280800057). This is a very hard to find ECU due to the age of the car. As always your best bet is to match the part numbers with your original. This is one of the most common no start or random stalling problems with these Bosch ECU controlled cars.. 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 $$ (often times over $1000!), and finding a good one second hand is getting to be a very hard chore.