AST Lowering Springs For BMW 4 420D/430D xDRIVE 07/2021-, Front 40 , Rear 40

The AST Lowering Springs for BMW 4 420D/430D xDRIVE 07/2021- are engineered to enhance your vehicle’s driving dynamics by lowering the center of gravity while maintaining a high level of comfort. Manufactured using cold-coiling technology on the advanced Wafios coiling machines, these springs provide a precise fit and reliable performance tailored specifically for your BMW model.

Designed as a direct replacement for the OEM springs, the AST Lowering Springs offer a progressive spring rate that balances improved handling and ride quality. By lowering the vehicle by 40 mm at both the front and rear, these springs contribute to better road grip, reduced body roll, and a more responsive driving experience without compromising everyday comfort. Their robust construction ensures durability and consistent performance under various driving conditions.

AST’s commitment to quality is reflected in the lifetime warranty against breaking, providing assurance of long-term reliability. These springs have been developed with meticulous attention to detail, considering the specific suspension characteristics of the BMW 4 Series 420D/430D xDRIVE models from 07/2021 onwards. This ensures optimal compatibility and performance enhancement tailored to your vehicle’s design.

Please note that these lowering springs are not suitable for 2WD (Two-Wheel Drive) vehicles. Additionally, vehicles equipped with M-Sport or Adaptive M-Sport suspension systems will experience approximately 10 mm less lowering compared to standard suspension setups.

Lowering Specifications

• Front lowering: 40 mm
• Rear lowering: 40 mm
• Approximately 10 mm less lowering for vehicles with M-Sport suspension
• Approximately 10 mm less lowering for vehicles with Adaptive M-Sport suspension

Compatibility

• BMW 4 Series 420D xDRIVE (from 07/2021 onwards)
• BMW 4 Series 430D xDRIVE (from 07/2021 onwards)
• Not compatible with 2WD (Two-Wheel Drive) models