Bilstein 44-104535 Air Suspension Strut - Front Left

OE Air Suspension Strut for Mercedes-Benz

Bilstein B4 OE Replacement (Air) part number 44-104535 is a front left air suspension strut for select Mercedes-Benz CLS models. It restores the original ride height control and driving feel expected from an OE-style air damper, with direct connection to the factory air suspension system.

Built for 2006 Mercedes-Benz CLS500 and 2007-2011 Mercedes-Benz CLS550 front left applications, this Bilstein Shock Absorbers unit is a direct-fit replacement for vehicles that use the original air suspension layout. The black-painted monotube design supports consistent damping performance in a factory-style replacement package.

Key Features

• Bilstein B4 OE Replacement (Air) series for factory-style air suspension service
• Front left air suspension strut for Mercedes-Benz CLS500 and CLS550
• Monotube internal design for controlled damping response
• Black paint finish
• Direct connection to original vehicle connectors for modification-free installation
• OE supplier background for air suspension systems

Product Details

The Bilstein B4 OE Replacement (Air) line is focused on restoring the original suspension behavior of European vehicles that use air suspension. For the Mercedes-Benz CLS550 and CLS500, part number 44-104535 is engineered to connect directly to the factory system, helping maintain the vehicle’s original ride characteristics without custom wiring or adapter changes. If you are replacing a worn front left air suspension strut on a 2006-2011 Mercedes-Benz CLS, this OE replacement damper is built for that application.

This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Common Issues This Part Addresses

• Front left corner sagging or uneven ride height
• Loss of original ride comfort on air suspension vehicles
• Suspension noise or harshness from a worn air strut
• Air suspension performance decline on Mercedes-Benz CLS500 and CLS550 models
• Need for a direct-fit OE-style replacement without modification

Installation Notes and Tips

Verify the vehicle’s front left position and confirm the part number before installation. This air suspension strut is made for direct connection to the original connectors, so it is suited to factory-style replacement work on the Mercedes-Benz CLS platform. Always inspect related air suspension components, lines, and connectors during service to confirm the system is operating correctly after replacement.

Quality Assurance

Bilstein supplies OE-level air suspension components, and the B4 OE Replacement (Air) series is built to meet the standards expected for original-equipment replacement on European vehicles. Part number 44-104535 is designed as a direct-fit replacement for the specified Mercedes-Benz CLS applications.