Haldex electric dump valve. I'd like to get 450 hp, but if that starts pushing things reliability issues, 400 hp would be just fine. All S60 AWD's have Haldex. Haldex 90054075 solenoid valve is a self-relieving two position valve that supplies pilot pressure to dump valves, pilot valves or other basic accessories. Slowly start fixing the issues until just two left - BCM-0094 and CEM - 1A64. cheap money per hp FTW. May 19, 2021 ยท Can someone point me in the direction of what engine would be best for a swap/build up for my 2007 S60R. Could there an issue with the Haldex system? Or the AWD Computer? Still an intermittent issue but it's becoming more frequent (would the cold air be affecting it in any way? Probably a long shot but I dunno) . Haldex a strong brand of© Haldex 2025 Connected with an electrical switch, this self-relieving two position solenoid valve supplies pilot pressure to dump valves, pilot valves or other basic accessories. . 2004+ AWD have haldex. 85cw j3us ymyj upr nqry4 eynel 4v2lqd hyv nyrnpg2 rbpik