Bilstein 31-231299 Suspension Strut Assembly - Front

Bilstein B6 Performance DampTronic Suspension Strut Assembly

Upgrade your BMW M5 with the Bilstein B6 Performance (DampTronic) suspension strut assembly, part number 31-231299. Designed to enhance handling and ride quality, this monotube strut assembly features durable components tailored for precise performance.

• Monotube internal design for consistent damping
• Yellow paint finish for corrosion resistance
• Blue bellows boot included for added protection
• Base cup lower mount and stem upper mount for secure fitment
• Compatible with BMW M5 models

About the B6 Performance (DampTronic) Product Line

The B6 Performance (DampTronic) series by Bilstein is engineered to provide improved handling characteristics while maintaining comfort. This line integrates advanced monotube technology with electronic damping control compatibility, making it suitable for vehicles equipped with adaptive suspension systems like the BMW M5. The 31-231299 strut assembly is part of this series, offering a balance between performance and ride quality.

Product Details and Specifications

This Bilstein suspension strut assembly features a monotube internal design, which ensures consistent damping performance and heat dissipation. The yellow paint finish protects the strut from corrosion, extending its service life. The included blue bellows boot safeguards the piston rod from dirt and debris. The lower mount uses a base cup design, while the upper mount is a stem type, ensuring proper fitment and secure installation on the BMW M5. This assembly is engineered specifically for the BMW M5, providing a direct replacement that meets OEM standards.

Common Applications and Problem Solving

• Restores handling precision and vehicle stability
• Reduces excessive body roll during cornering
• Improves ride comfort over uneven surfaces
• Replaces worn or leaking factory struts
• Maintains proper suspension geometry and alignment

Installation Notes and Tips

When installing the Bilstein 31-231299 suspension strut assembly on a BMW M5, ensure the vehicle is securely lifted and supported. Verify compatibility with your vehicle’s adaptive suspension system before installation. It is recommended to have a professional alignment performed after installation to maintain optimal handling and tire wear. The included blue bellows boot should be inspected for damage during installation to ensure proper protection.

Quality Assurance and Warranty

Bilstein shock absorbers, including the B6 Performance (DampTronic) series, are manufactured to meet strict quality standards. This suspension strut assembly undergoes rigorous testing to ensure durability and performance. For warranty details, please refer to Bilstein’s official documentation or contact the manufacturer directly.