Bilstein B4 OE Replacement

2015–2016 Mercedes-Benz C300 Rear Left Air Suspension Spring

Part #: 26-251691

Overview

The Bilstein B4 OE Replacement rear left air suspension spring is a high-quality component designed specifically for the Mercedes-Benz C300 models from 2015 to 2016. As a trusted OE supplier, Bilstein delivers suspension parts that meet or exceed the original manufacturer’s standards, ensuring your vehicle maintains its factory ride quality and handling characteristics. Whether you're restoring your vehicle after a suspension failure or upgrading to OEM-quality parts, this air suspension spring provides a reliable solution.

This replacement spring is ideal for Mercedes-Benz owners seeking to restore their vehicle's original comfort, stability, and ride height. Designed for direct bolt-in installation, it allows you to quickly and easily return your vehicle to its proper suspension alignment without the need for modifications or specialized tools. With Bilstein’s reputation for durability and precision engineering, you can trust this component to deliver consistent performance and long-lasting reliability.

Key Features

Bilstein B4 OE Replacement air suspension springs incorporate advanced engineering and premium materials to ensure optimal performance and durability. These springs are crafted to match the original specifications, providing a seamless fit and function. Here are some of the key features that make this suspension spring an excellent choice:

• OE-grade construction that meets or exceeds the original equipment standards for fitment and performance.
• Designed specifically for the rear left position on Mercedes-Benz C300 models from 2015 to 2016.
• Made from high-quality materials that resist corrosion and fatigue, ensuring long-term durability.
• Connects directly into the existing air suspension system without modifications, enabling a straightforward installation process.
• Helps restore the vehicle’s original ride height, handling, and comfort by maintaining proper suspension geometry.
• Manufactured by Bilstein, a globally recognized leader in suspension technology with a reputation for quality and innovation.
• Engineered to provide a smooth, controlled ride that matches the factory feel, enhancing driving confidence and safety.
• Designed to withstand the rigors of daily driving, including varying road conditions and load demands.

Construction & Design

The Bilstein B4 OE Replacement air suspension spring features a robust design utilizing high-strength steel and corrosion-resistant coatings. Its one-piece construction ensures uniform load distribution and structural integrity under demanding driving conditions. The spring’s precise dimensions and engineering ensure perfect compatibility with the original air suspension system, eliminating the need for additional modifications.

Bilstein’s engineering team employs advanced CAD modeling and rigorous testing to develop suspension components that deliver consistent performance. The spring’s design optimizes ride comfort and handling by maintaining proper suspension geometry, even after years of use. Its durable construction resists fatigue, corrosion, and environmental wear, making it a dependable choice for restoring your vehicle’s suspension system.

Installation & Fitment

The Bilstein B4 OE Replacement rear left air suspension spring is designed for a straightforward, bolt-on installation. It connects directly into the existing air suspension system using the original connectors, requiring no cutting, drilling, or tuning. Typically, replacement involves lifting the vehicle, removing the wheel, and swapping out the faulty spring for the new Bilstein unit. No specialized tools or modifications are necessary, making it an accessible upgrade or repair for most DIY enthusiasts and professional technicians alike.

• Direct fit replacement for the rear left air suspension spring on 2015–2016 Mercedes-Benz C300 models.
• No cutting, drilling, or tuning required for installation.
• Restores original ride height, handling, and comfort.

What's Included

• One rear left air suspension spring
• Installation hardware and instructions (if applicable)

Ideal For

• Mercedes-Benz C300 owners restoring or replacing their air suspension components
• Technicians performing OE-quality repairs on Mercedes-Benz vehicles
• Enthusiasts seeking to maintain factory ride quality and handling
• Drivers experiencing suspension sag, noise, or uneven ride height