What does the 'B4 OE Replacement (Air)' designation mean?

This means the part is part of Bilstein's B4 line, designed as an Original Equipment (OE) replacement. The '(Air)' specifically indicates it's for vehicles with an air suspension system, aiming to restore the original feel and function.

Do I need to buy anything else to install this air spring?

This unit is designed to connect directly to your vehicle's original connectors for a modification-free installation. However, it's always a good idea to consult your vehicle's service manual or a professional mechanic to ensure you have all necessary tools and any recommended replacement hardware.

Is this part for the left or right side of the vehicle?

This specific part number, 44-181666, is for the front left side of your Mercedes-Benz E-Class. Air suspension components are typically side-specific, so ensure you order the correct side for your repair.

2006-2009 Mercedes-Benz E350 Front Left Air Spring

Name: Bilstein B4 2004 Mercedes-Benz E320 4Matic Sedan Front Left Air Spring with Twintube Shock Absorber
Brand: Bilstein
SKU: bilstein-bilstein-b4-2004-mercedes-benz-e320-4matic-sedan-front-left-air-spring--t14-283262
Price: 1189.00 USD
Availability: InStock

Bilstein B4 2004 Mercedes-Benz E320 4Matic Sedan Front Left Air Spring with Twintube Shock Absorber

$1189.00

Only 3 left in stock

Fits 2006-2009 Mercedes-Benz E350. Bilstein B4 Air Spring with Twintube Shock Absorber. Restores original comfort and functionality.

Key Features

Fits 2006-2009 Mercedes-Benz E350, 2004-2005 E320, 2004-2006 E500, and 2007-2009 E550.
Restores original air suspension functionality and ride comfort.
Manufactured with 100% new parts for maximum reliability and safety.
OE quality construction that meets or exceeds manufacturer standards.
Designed for a direct, modification-free installation using original connectors.

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Will this fit your vehicle?

Product Details

If your 2006-2009 Mercedes-Benz E350 is sagging on one side or you're experiencing a harsh ride from a failing air suspension, it's time to replace that front left air spring. This Bilstein B4 OE Replacement unit is built to bring back the original comfort and handling your E350 had when it rolled off the lot.

Bilstein is a trusted original equipment supplier for air suspension systems, meaning these dampers meet or even exceed the strict standards set by Mercedes-Benz. This unit is constructed with 100% new parts, ensuring reliability and safety for years to come. It's designed to connect directly to your vehicle's factory wiring, so installation is straightforward without needing any modifications. You'll get back that precise, comfortable ride quality that Bilstein is known for, all while restoring your vehicle's original functionality.

This part is specifically for the front left side of your vehicle. Make sure to check the fitment details to confirm it's the correct component for your specific E-Class model and year.