Bilstein 23-305069 Suspension Strut Assembly - Front Left

Bilstein B4 OE Replacement Strut for BMW 330i xDrive

The Bilstein 23-305069 suspension strut assembly is designed specifically for the BMW 330i xDrive, providing reliable performance and precise handling. This replacement strut offers a direct fit solution to restore your vehicle's original ride quality and suspension dynamics.

• Part Number: 23-305069
• Brand Line: B4 OE Replacement (DampTronic)
• Collapsed Length: 13.78 inches (350.0 mm)
• Extended Length: 20.37 inches (517.5 mm)
• Internal Design: Twintube
• Finish: Durable black paint
• Lower Mount Type: Base cup
• Upper Mount Type: Stem
• Spring Seat: Fixed and included
• Boot Included: No

About the B4 OE Replacement (DampTronic) Product Line

The B4 OE Replacement (DampTronic) series by Bilstein is engineered to meet or exceed original equipment specifications. This product line is tailored for vehicles equipped with electronic damping control systems, such as the BMW 330i xDrive. The DampTronic technology ensures compatibility with the vehicle’s adaptive suspension system, maintaining factory ride comfort and handling characteristics.

Product Details and Specifications

This Bilstein suspension strut assembly features a twintube internal design that balances comfort and control. The strut measures 13.78 inches when collapsed and extends to 20.37 inches, matching the exact dimensions required for the BMW 330i xDrive. The black painted finish provides corrosion resistance and a clean appearance. The fixed spring seat is included, ensuring proper spring positioning and secure mounting. The lower mount uses a base cup design, while the upper mount is a stem type, both engineered for a precise fit and reliable performance.

Common Applications and Problem Solving

• Restores original suspension performance on BMW 330i xDrive models
• Addresses issues with worn or leaking struts causing poor ride quality
• Improves vehicle handling and stability after suspension component failure
• Eliminates excessive body roll and uneven tire wear
• Compatible replacement for vehicles with DampTronic adaptive suspension systems

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before removing the old strut assembly. This Bilstein 23-305069 strut is a direct replacement designed to fit the BMW 330i xDrive without modification. Verify that the spring seat is properly seated and the mounts are aligned during installation. Since the boot is not included, inspect the existing dust cover and replace if necessary to protect the strut shaft. Professional installation is recommended to maintain suspension integrity and safety.

Quality Assurance and Warranty

Bilstein manufactures this B4 OE Replacement (DampTronic) strut assembly to meet strict quality standards, ensuring durability and consistent performance. While specific warranty details are not provided here, Bilstein products typically come with a limited warranty covering defects in materials and workmanship. Refer to official Bilstein documentation for exact warranty terms.