One problem related to axle hubs has been reported for the 2004 Volvo XC90. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Volvo XC90 based on all problems reported for the 2004 XC90.
My Volvo Xc90 continues to have a loud knocking noise while driving. After 4 trips to the dealership, where problems were verified with the axle, the splines, the brake pads and brake calipers, the car still knocks!! I feel very unsafe driving it! Volvo corporate has been no help.