tr Volvo s70 ECU Up for sale is a Working, in excellent condition Volvo s70 ECU. Part number-- 0 261 204 458. This unit came out of a 98 s70, and may fit other models/years. Your best bet is to check the part number on your ECU and make sure it matches this one. This is one of the most common no start or random stalling problems with these Bosch 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 $$ (often times over $1000!), and finding a good one second hand is getting to be a very hard chore.