Bilstein B4 OE Replacement DampTronic Electronically Adjustable Suspension Strut Assembly

The Bilstein B4 OE Replacement DampTronic Suspension Strut Assembly is the definitive plug-and-play solution for vehicles equipped with factory electronic damper control systems. Unlike generic aftermarket replacements that convert an active suspension to a passive one, these strut assemblies fully replicate all OE shock absorber features and continue to support active suspension control — preserving the intelligent damping your vehicle was designed with.

DampTronic® Technology:

Bilstein's proprietary DampTronic® technology utilizes the full range of valve technologies developed through Bilstein's extensive OE partnerships, with damping characteristics precisely calibrated to work seamlessly with the vehicle's factory electronic suspension management system. These strut assemblies communicate directly with manufacturer platforms such as DCC, CATS, EDC, and PASM, as well as other OEM-specific electronic damper control systems — ensuring optimal damping response across all drive modes and real-world driving conditions.

Key Features:

• True plug-and-play OE replacement for electronically adjustable dampers found on European-brand vehicles
• Full active suspension compatibility — continues to support electronic damper control, unlike passive aftermarket alternatives
• Twintube strut assembly construction engineered to OE specifications for retained ride height and factory tuning
• Meets or exceeds original equipment standards in quality, functionality, and performance
• Manufactured to OE dimensions — height-neutral, no suspension registration or recalibration required
• Complete strut assembly design for straightforward, efficient installation
• Backed by Bilstein's lifetime limited warranty on gas pressure components

Bilstein has been a trusted OE suspension supplier to the world's leading automotive manufacturers for decades, and the B4 DampTronic line reflects that same standard of engineering excellence. Whether restoring worn dampers on a luxury European sedan or replacing a failed adaptive suspension component, the B4 DampTronic strut assembly delivers factory-grade ride quality and seamless electronic integration. For best results, replace strut assemblies in axle pairs to maintain balanced suspension performance.