AST Lowering Springs For BMW 5 540i/545i/550i/535D 07/2003-03/2010, Front 50 , Rear 50

The AST Lowering Springs are engineered specifically for BMW 5 Series models 540i, 545i, 550i, and 535D produced between 07/2003 and 03/2010. Designed to lower the vehicle’s ride height by 50 mm at both the front and rear, these springs effectively reduce the center of gravity, enhancing handling and stability without compromising the comfort expected from original equipment manufacturer (OEM) components.

Manufactured using premium materials and precision cold-coiling technology on state-of-the-art Wafios machines, the AST springs ensure consistent quality and durability. Their progressive spring rate design balances performance improvements with ride comfort, making them suitable for daily driving as well as spirited road use. This product is a direct fit replacement, developed to meet the exact specifications of the targeted BMW models, ensuring seamless integration and reliable performance.

AST’s commitment to quality is reflected in the lifetime warranty against spring breakage, providing long-term assurance and peace of mind. These lowering springs are compatible with a wide range of BMW vehicles and have been tested extensively to maintain safety and reliability under various driving conditions.

Notes

• Not suitable for vehicles equipped with level adjustment systems.
• Not compatible with four-wheel drive (4WD) models.
• Vehicles fitted with factory sports or M-Sport suspension will experience approximately 25 mm less lowering.

Lowering Specifications

• Front lowering: 50 mm
• Rear lowering: 50 mm
• Progressive spring rate for balanced comfort and performance
• Cold-coiled for enhanced durability and precision

Compatibility

• BMW 5 Series 540i (07/2003-03/2010)
• BMW 5 Series 545i (07/2003-03/2010)
• BMW 5 Series 550i (07/2003-03/2010)
• BMW 5 Series 535D (07/2003-03/2010)
• Not suitable for vehicles with level adjustment or 4WD

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We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

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All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.