Product Details

These Riaction GT1 coilovers fit the 2014+ Mercedes-Benz C-Class AWD (W205).

The Riaction GT1 Coilovers for the 2014+ Mercedes-Benz C-Class AWD W205 deliver a premium, adjustable suspension upgrade built for drivers who want more from their C-Class AWD W205 than the factory setup can offer. These Mercedes-Benz C-Class AWD coilovers are engineered to pair street comfort with canyon and track capability, giving you the stance, handling, and adjustability you've been chasing without compromising daily driveability. Whether you track your W205 C-Class AWD on weekends or log daily miles, this W205 coilover kit dials in ride height and damping to match how you actually use the car.

Every GT1 set features a monotube damper with 32 levels of damping adjustment, so you can tune ride quality to match the road, the weather, or your driving mood. Full-length ride-height adjustment separates preload from ride height — meaning you can drop the C-Class AWD W205 to the height you want while preserving spring travel and shock stroke. Riaction coilovers for the 2014+ Mercedes-Benz C-Class AWD are fully rebuildable and backed by a 2-year warranty, making the GT1 a long-term suspension investment rather than a disposable upgrade.

GT1 Series Technology

  • Monotube linear damper with seamless 52mm electroplated carbon steel body
  • 32-level damping adjustment (1-Way)
  • 44mm CNC-machined 6061 aluminum high-flow piston
  • 20mm piston rod for MacPherson applications / 14mm for non-MacPherson
  • SAE9254 cold-wound linear main springs
  • Multi-thickness valving shims for consistent damping
  • Polyurethane oil seals and 7.5W suspension fluid
  • Low-gas-pressure design for improved compliance
  • Fully rebuildable — built to be serviced, not replaced

Features

  • Full-length ride-height adjustment (preload-independent)
  • 32 levels of damping adjustment
  • Optional Swift Springs upgrade (sold separately)
  • 2-year limited warranty
Specifications
Part Number MZ-027-SS
Part Name Riaction GT1 Coilovers
Vehicle 2014+ Mercedes-Benz C-Class AWD
Chassis Code W205
Drivetrain AWD
Damping Adjustment 1-Way
Ride-Height Adjustable Yes
Spring Rate - Front 12 Kg/mm
Spring Rate - Rear 14 Kg/mm
Top Mounts - Front OEM
Top Mounts - Rear OEM
Suspension Design - Front True Coilover
Suspension Design - Rear
Notes -

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
2014Mercedes-BenzC300AWD
2014Mercedes-BenzC400AWD
2015Mercedes-BenzC300AWD
2015Mercedes-BenzC400AWD
2016Mercedes-BenzC300AWD
2016Mercedes-BenzC400AWD
2017Mercedes-BenzC300AWD
2017Mercedes-BenzC400AWD
2018Mercedes-BenzC300AWD
2018Mercedes-BenzC400AWD
2019Mercedes-BenzC300AWD
2019Mercedes-BenzC400AWD
2020Mercedes-BenzC300AWD
2020Mercedes-BenzC400AWD
2021Mercedes-BenzC300AWD
2021Mercedes-BenzC400AWD
2022Mercedes-BenzC300AWD
2022Mercedes-BenzC400AWD
2023Mercedes-BenzC300AWD
2023Mercedes-BenzC400AWD

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