KW H.A.S. Height Adjustable Spring Kit for Mercedes C43 AMG 2017–2022 W205 3.0L V6

Unlock the perfect balance of stance, performance, and daily comfort with the KW H.A.S. (Height Adjustable Spring) Kit for the Mercedes-AMG C43 W205. Designed as a premium alternative to fixed lowering springs, this system allows you to fine-tune ride height even after installation—without sacrificing factory suspension functionality.

Vehicle Fitment

• Mercedes-AMG C43 4MATIC – 3.0L V6 (Engine 276.823)
• Coupe: 2017, 2018, 2019, 2020, 2021, 2022
• Sedan: 2017, 2018, 2019, 2020, 2021
• Drivetrain: AWD / 4MATIC

Lowering Range

• Front: 0.2” – 1.2”
• Rear: 0.2” – 1.4”

Key Features & Benefits

• Designed to work with factory shocks
• Does NOT remove EDC or factory adaptive suspension functionality
• Continuous ride height adjustment similar to coilovers
• Sporty harmonic spring rates for sharper handling and improved agility
• Retains all driver assistance systems and comfort features

Engineered Performance by KW

Built using chrome-silicon steel springs, the KW H.A.S. kit is precisely tuned to OE damper characteristics and wheel load specifications. This ensures optimal compatibility with factory adaptive electronic suspension while delivering a more direct, responsive driving feel.

Unlike traditional lowering springs, KW’s height adjustable system allows ongoing personalization within a tested and validated range. Included dust protection and spring perches safeguard your factory suspension from road grime and debris, ensuring long-term reliability.

Proven on Street & Track

This system undergoes extensive validation at the Nürburgring Nordschleife and the KW 7-Post Driving Dynamic Test Center. With over 20 years of suspension expertise, KW sets the benchmark for performance, quality, and durability.

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