FCS DT346457 Shock Absorber - Rear

Rear Shock Absorber for Mercedes-Benz Applications

The FCS DT346457 is a rear suspension shock absorber built for select Mercedes-Benz models with monotube rear suspension setups. With a compressed length of 16.02 inches, extended length of 23.15 inches, and 7.13 inches of stroke, it is specified for direct-fit rear service on vehicles equipped with Comfort Suspension or Sport Suspension, depending on application.

Key Features

• FCS DT346457 rear shock absorber for select Mercedes-Benz fitments
• Monotube construction for consistent damping response
• Compressed length: 16.02 in.
• Extended length: 23.15 in.
• Stroke length: 7.13 in.
• Fits rear suspension applications only
• Compatible with select Mercedes-Benz E350, E450, CLS450, C300, E300, E400, C400, and CLA45 AMG models

Detailed Fitment and Application

This FCS shock absorber, part number DT346457, is listed for rear suspension use on 2021-2025 Mercedes-Benz E350 with Comfort Suspension, 2021-2025 Mercedes-Benz E450 with Comfort Suspension, 2019-2023 Mercedes-Benz CLS450, 2019-2022 Mercedes-Benz C300 with Sport Suspension, and additional select Mercedes-Benz rear applications including E300, E400, C400, and CLA45 AMG. The monotube design supports controlled rear suspension movement, and the listed dimensions help confirm proper fitment for the intended chassis and suspension package. If you are replacing a worn rear shock on a Mercedes-Benz E350 or Mercedes-Benz C300, DT346457 provides a direct application match for the specified configurations.

Common Problems This Part Can Address

• Rear-end bouncing or oscillation after bumps
• Excessive body movement during braking or cornering
• Uneven ride control from a worn shock absorber
• Rear suspension noise caused by degraded damping performance
• Reduced stability on Mercedes-Benz E-Class, C-Class, or CLS rear suspension systems

Installation Notes and Tips

Verify the vehicle’s suspension package before ordering. This part excludes air suspension, and some applications also exclude adaptive control suspension. Confirm the rear position, model year, and trim-specific suspension type against the fitment notes before installation. For best results, compare the original shock absorber’s dimensions and mounting style to the listed compressed length, extended length, and stroke length.

Quality Assurance

FCS manufactures suspension components for direct replacement applications, and DT346457 is cataloged with exact dimensional and fitment data to support accurate ordering for select Mercedes-Benz rear shock absorber service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.