High performance nitrogen gas charged shock for enhanced vehicle stability.
The Bilstein B4 AirMatic Shock Absorber is engineered to provide superior performance and reliability for air suspension systems. This nitrogen gas charged shock absorber features an external reservoir, ensuring optimal damping characteristics and enhanced safety during operation. Designed to meet high OEM quality standards, it connects directly to the original vehicle plugs for a straightforward, modification-free installation that restores the original driving feel.
With its twin tube internal design and self-adjusting deflective disc valving, the Bilstein B4 offers consistent performance under varying load conditions. The shock absorber is constructed from durable steel materials, ensuring longevity and resistance to wear. Additionally, the inclusion of shock boots helps protect the unit from dirt and debris, further extending its service life.
Bilstein's gas pressure technology provides high power reserves, allowing for maximum safety and control while driving. This single shock absorber is vehicle specific, making it a reliable choice for those looking to maintain or restore their vehicle's suspension performance.
Features
- High Power Reserves For Maximum Safety
- Drive As Though It Is First Time Every Time
- High OEM Quality Standards
- Bilstein Gas Pressure Technology
Specifications
- Manufacturer: Bilstein
- Manufacturer Part Number: 44-104542
- Type: Nitrogen Gas Charged
- With Coil Spring: No
- Upper Mounting Style: Stud
- Lower Mounting Style: Clevis
- Adjustable Valving: No
- Quantity: Single
- Universality: Vehicle Specific
- Internal Design: Twin Tube
- Body Color: Black
- Rod Diameter (IN): OEM
- Valving Type: Self-Adjusting Deflective Disc Valving
- Rod Material: Steel
- Body Material: Steel
- With Reservoir: Yes
- Includes Dust Shield: No
- Includes Hardware: No
- Includes Boot: Yes
- Estimated Install Time (Hours): 0.5
Compatibility / Fit
- 2006-2006 Mercedes-Benz CLS500
- 2007-2011 Mercedes-Benz CLS550
Technical Documents
- E4-WM5-Y348A00.pdf
- warranty_all_v4.2.pdf
- USA_SDS_Shock_Air_Spring_V2_EN.pdf
- USA_SDS_Shock_Air_Spring_V2_EN.pdf
Product Videos
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
Skip to content

