Bilstein B4 OE Replacement

2014–2016 Mercedes-Benz S550 Front Left Air Suspension Spring

Part #: 44-240004

Overview

The Bilstein B4 OE Replacement front left air suspension spring is a high-quality component designed specifically for your Mercedes-Benz S550 from the 2014 to 2016 model years. As an OE supplier for many European vehicle brands, Bilstein has a reputation for manufacturing suspension parts that meet or exceed the original equipment standards. This spring is engineered to restore your vehicle's ride height, handling, and comfort, ensuring your Mercedes-Benz performs at its best.

If you're experiencing issues with your factory air suspension—such as sagging, uneven ride height, or a rough ride—the Bilstein B4 OE Replacement spring offers a reliable, direct-fit solution. Perfect for enthusiasts who want to maintain factory-like performance and comfort, this spring helps support optimal suspension function without the need for extensive modifications.

Key Features

The Bilstein B4 OE Replacement front left air suspension spring is crafted with precision and durability in mind. Its key features include:

• OE-grade materials and construction ensure long-lasting performance and durability under various driving conditions.
• Designed to connect seamlessly with the original suspension connectors, providing a modification-free installation process.
• Restores factory ride height and handling characteristics, maintaining the vehicle's intended driving dynamics.
• Manufactured to meet or exceed OE specifications, ensuring reliable operation and safety.
• Optimized for European luxury vehicles, delivering a smooth, comfortable ride that matches the original suspension feel.
• Corrosion-resistant coating enhances longevity, especially in harsh weather conditions.
• Engineered to support the vehicle's weight and dynamic loads, helping to maintain proper alignment and tire wear.

Construction & Design

The Bilstein B4 OE Replacement spring is constructed from high-strength steel, carefully engineered to withstand the stresses of daily driving and long-term use. Its design incorporates precise coil geometry and material selection to ensure consistent spring rates and optimal ride quality. The spring features a corrosion-resistant coating, protecting it from rust and environmental damage, which is especially important for European vehicles often exposed to road salt and moisture.

Manufactured with strict quality control standards, this spring maintains the original suspension geometry, ensuring that your vehicle's handling, comfort, and safety are preserved. Its direct-fit design eliminates the need for modifications, making installation straightforward for professional technicians or experienced DIY enthusiasts.

Installation & Fitment

The Bilstein B4 OE Replacement front left air suspension spring is a bolt-on replacement that connects directly to your vehicle's existing suspension system. No cutting, drilling, or complex modifications are required, making it a convenient upgrade or repair option. Proper installation typically involves lifting the vehicle, removing the existing spring, and replacing it with the new component using standard tools. For optimal safety and performance, professional installation is recommended.

• Seamless, modification-free installation
• Compatible with 2014–2016 Mercedes-Benz S550 models
• Front left position only

What's Included

• One Bilstein B4 OE Replacement front left air suspension spring

Ideal For

This suspension spring is ideal for Mercedes-Benz S550 owners seeking to restore factory ride quality, handling, and comfort. It is suitable for those experiencing suspension sag, uneven ride height, or seeking to replace worn or damaged springs to maintain vehicle safety and performance.