
AST
AST Lowering Springs For BMW 5 540 MILD HYBRID/518D MILD HYBRID/520D MILD HYBRID with airsuspension HA 11/2019-02/2024, Front 30 , Rear
AVAILABLE TO ORDER
HALLOWEEN DISCOUNT ON THIS PRODUCT ENDS IN:
Choose options

AVAILABLE TO ORDER
HALLOWEEN DISCOUNT ON THIS PRODUCT ENDS IN:
AVAILABLE TO ORDER
HALLOWEEN DISCOUNT ON THIS PRODUCT ENDS IN:
The AST Lowering Springs are engineered to provide a refined balance between enhanced vehicle dynamics and preserved ride comfort. Manufactured through a precise cold-coiling process on state-of-the-art Wafios machines, these springs are designed specifically for the BMW 5 Series models 540 MILD HYBRID, 518D MILD HYBRID, and 520D MILD HYBRID equipped with air suspension (HA) from 11/2019 to 02/2024. By lowering the vehicle’s center of gravity, these springs contribute to improved handling stability and a sportier stance without compromising the comfort standards expected from OEM components.
Crafted from high-quality materials and developed with rigorous engineering standards, the AST Lowering Springs offer a progressive spring rate that enhances performance while maintaining daily drivability. Their design ensures compatibility with the original suspension setup, allowing for a seamless installation as a direct replacement for factory springs. With a comprehensive application range covering over 2500 vehicle models since 1966, AST springs are recognized for their reliability and durability, further supported by a lifetime warranty against breakage.
These springs are particularly suited for touring models with rear air suspension, providing a subtle yet effective lowering effect that improves both aesthetics and driving dynamics. The front springs included in the set are engineered to complement the air suspension system, ensuring a harmonious balance between lowered ride height and suspension functionality.
Lowering Specifications
- Front lowering: 30 mm
- Rear lowering: Designed for air suspension systems, with the set containing only front springs
- Approximately 10 mm less lowering on vehicles equipped with M-sport suspension
- For vehicles with standard lowering, the effective lowering is reduced by the amount of the standard lowering
- Not suitable for 4WD (four-wheel drive) vehicles
Compatibility
- BMW 5 Series 540 MILD HYBRID (11/2019 - 02/2024)
- BMW 5 Series 518D MILD HYBRID (11/2019 - 02/2024)
- BMW 5 Series 520D MILD HYBRID (11/2019 - 02/2024)
- Models equipped with rear air suspension (HA)
- Only suitable for Touring variants
AST Lowering Springs are a reliable upgrade for discerning drivers seeking to enhance their BMW 5 Series’ handling characteristics while retaining the comfort and quality inherent to the brand. Their precision manufacturing and vehicle-specific engineering ensure a product that meets professional standards and delivers consistent performance over time.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
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.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
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.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.