Hi All Have a 2004 X5, was coming out of a turning when power steering went "stiff" and battery light flashed on, then off after about 10 seconds, managed to drive home normally after battery light disappeared but it Happened again when I went out again later so haven't used it since. Googled, seems like serpentine belt is possibility? Any ideas? How easy to replace, and cost? Husband quite handy with cars so could have a got if parts cheap enough. Thanks!! SJW1967