Volvo 850, S70 V70 C70 Series All 4 Valve Engines. 960, S/V90 Series, B6304, B6254 1994 up to 1997 Idle control valve Up for sale is a Very nice Bosch Idle control valve. This valve fits many volvo 850, S/V/C70 Series All 4 Valve Engines. 960, S/V90 Series, B6304, B6254 1994 up to 1997. Please check the Bosch part number off of your old unit to be sure this is correct for your car, as there are several different types. The part number on this unit is-- 0280140542 These often get "stuck" at the hot idle position which will cause the car not to idle when ever it's cold, but perfectly fine when warm. some other faults can be noted by a very lumpy idle, or a car that idles extremely fast almost all the time except when cold. These are great to keep as a spare too, they are over $360 at most dealers, around $240 wholesale. This unit is USED but came off of a properly running car. It was cleaned checked and oiled and will work properly upon receipt. I will only sell AIC's that are clean and have been runtested. Thanks for looking!