The Bilstein B4 DampTronic series is the ideal OE replacement for BMW vehicles originally equipped with electronic suspension adjustment. This strut is engineered to maintain your vehicle's original handling characteristics and comfort while integrating seamlessly with the factory active suspension system. Features: Constant damping power under any load, high OEM quality standards, proven gas pressure technology. Components included: 1x Front Right Suspension Strut (MPN: 23-266476). Fits AWD (xDrive) models with Adaptive M-Suspension.