AST Suspension Lowering Springs (40mm/40mm TUV) - 1995-2003 BMW 5 Series 525D/530D Sedan (E39)

The AST Suspension Lowering Springs for the 1995-2003 BMW 5 Series E39 are high-performance coil springs designed to lower the vehicle's ride height by 40mm. Constructed from premium high tensile chromium-silicone wire, these springs are carefully handpicked by AST engineers for their quality and consistency. Each spring undergoes a rigorous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, and individual shot peening. The springs are then phosphate treated and powder coated to ensure durability and longevity, surpassing the lifespan of the vehicle. Featuring progressive rates on most applications, these springs improve handling, stability, and aesthetics while maintaining ride comfort.

Designed specifically for the E39 chassis from 1995 to 2003, these springs are compatible with BMW 5 Series sedans equipped with the 525D and 530D engines. They serve as a direct replacement for stock springs, offering a lowered stance and improved cornering performance suitable for street and spirited driving. Installation is straightforward, with the springs fitting OEM suspension components without modification. The kit includes the set of lowering springs, providing a reliable upgrade for enthusiasts seeking enhanced handling and a sportier look on their BMW 5 Series E39.