Volvo XC70 grinding and popping sounds from the rear differential during acceleration and cornering on Volvo XC70

Some Volvo XC70 owners report experiencing grinding and popping sounds from the rear differential during acceleration and cornering, which may indicate serious issues. These owners have noted that grinding noises could signal poor gear meshing or lubricant failure, while popping sounds might point to problems with components like the axle or ring and pinion gears. Additionally, some have experienced whining or whirring noises that become more pronounced during acceleration, deceleration, or cornering, suggesting a failing differential. A common cause of these issues is a lack of oil, which can lead to grinding at high speeds and even more severe problems like carrier breakage. To address these concerns, it is recommended that owners check the differential for proper functioning and lubricant levels, maintain differential fluid regularly, and seek professional inspection if noises persist to prevent further damage and ensure optimal performance.