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Silver metal rear shock absorber cylinder with piston rod and mounting eyelets

Unity

Unity 257090 Rear Shock Absorber 2001-2007 Mercedes-Benz C Class

SKU CH-48WA-H02ZS

Nitrogen-charged rear shock absorber restores factory ride height and stable handling for 2001-2007 Mercedes-Benz C-Class models

  • Product typeInstallation Tools
  • Direct-fit OE-style replacement for 2001-2007 Mercedes-Benz C Class
  • Nitrogen gas charging delivers superior response and consistent control
  • Restores factory ride height for a stable comfortable ride
  • Precision design ensures trouble-free installation and long-lasting reliability
  • Replace both rear sides together for balanced handling and best results

Rear Shock Absorber 257090

This nitrogen gas charged shock absorber replaces worn original equipment on 2001 to 2007 Mercedes-Benz C Class models. It restores factory ride height and delivers a stable, comfortable ride for daily driving.

Upgrade from failed OE shocks

The twin tube design serves as a direct replacement when original units leak or lose damping control. Replacing both rear sides at the same time ensures balanced handling and consistent response across the axle.

Twin tube gas charged limits

The conventional twin tube construction handles normal road loads but can fade under sustained heavy use or aggressive driving. It fits the listed C230, C240, C280, C320, C350 and C55 AMG models without modification.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $26.99
Pricier than about 60% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeInstallation Tools

Questions about this item

Will the 21 x 3 x 3 inch dimensions of the Unity 257090 clear the rear suspension mounting points on my 2005 C240?

The shock absorber measures 21 x 3 x 3 inches and is precision designed for a direct fit on 2001-2005 C240 models, matching the original equipment mounting locations.

What is the correct torque sequence for the upper and lower mounting bolts during installation?

Install the shock absorber as a direct replacement using the original equipment mounting hardware; tighten the upper and lower bolts to the vehicle manufacturer's specified torque values in the sequence outlined in the Mercedes-Benz service manual.

How often should the nitrogen gas charge be checked or the shock absorber replaced on a 2006 C350?

The nitrogen gas charged twin-tube design is sealed for life and requires no gas charge maintenance; replace the shock absorber when ride quality deteriorates or fluid leakage appears, and replace both rear sides together for best results.

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