Arnott A-3314 Air Suspension Spring - Rear Left

Rear Left Air Spring for Mercedes-Benz Applications

Arnott A-3314 is a rear left air suspension spring for select Mercedes-Benz models, including GLC-Class, E-Class, CLS-Class, and AMG GT variants. It uses a multi-layer, cross-corded Continental ContiTech air sleeve for durable ride support and consistent suspension performance.

Built in the USA with Tier 1 components, this rear left air spring is made for direct replacement service on vehicles that use a convoluted rubber air sleeve and a base cup lower mount. Arnott A-3314 is a practical OE-style solution for Mercedes-Benz GLC300, E450, and related rear suspension applications.

Key Features

• Rear left air suspension spring for select Mercedes-Benz vehicles
• Arnott part number A-3314
• Multi-layer, cross-corded Continental ContiTech air sleeve
• Rubber bellows with black convoluted design
• High-impact resin top and piston
• Heavy-duty crimp rings for assembly integrity
• 4 mm airline fitting for faster installation
• Assembled in the USA with Tier 1 components
• Lower mount type: base cup

Product Details

Arnott’s NEW product line focuses on replacement air suspension components built for serviceability and fitment accuracy. A-3314 follows that approach with a rear left air spring assembly that matches the needs of many Mercedes-Benz rear suspension systems. The design centers on a durable rubber bellows and a Continental ContiTech air sleeve to support long-term use in daily driving conditions.

This part cross-references Mercedes-Benz 2133200125 for the same application. Use Arnott A-3314 when replacing a worn rear left air spring on Mercedes-Benz GLC300, E-Class, CLS450, or AMG GT models listed below.

Vehicle Fitment

• Fits 2021-2025 Mercedes-Benz AMG GT 43, rear left.
• Fits 2019-2025 Mercedes-Benz AMG GT 53, rear left.
• Fits 2019-2021 Mercedes-Benz AMG GT 63, rear left.
• Fits 2023-2025 Mercedes-Benz AMG GT 63, rear left.
• Fits 2019-2021 Mercedes-Benz AMG GT 63 S, rear left.
• Fits 2023 Mercedes-Benz AMG GT 63 S, rear left.
• Fits 2024-2025 Mercedes-Benz AMG GT 63 S E Performance, rear left.
• Fits 2021-2023 Mercedes-Benz CLS450, rear left.
• Fits 2017-2020 Mercedes-Benz E200, rear left.
• Fits 2021-2023 Mercedes-Benz E200, rear left.
• Fits 2017-2020 Mercedes-Benz E300, rear left.
• Fits 2021-2023 Mercedes-Benz E300, rear left.
• Fits 2020 Mercedes-Benz E350, rear left.
• Fits 2021-2023 Mercedes-Benz E350, rear left.
• Fits 2017-2020 Mercedes-Benz E350e, rear left.
• Fits 2021-2023 Mercedes-Benz E450, rear left.
• Fits 2019-2020 Mercedes-Benz E450, rear left.
• Fits 2019-2023 Mercedes-Benz E53 AMG, rear left.
• Fits 2018 Mercedes-Benz E63 AMG S, rear left.
• Fits 2020 Mercedes-Benz E63 AMG S, rear left.
• Fits 2022-2023 Mercedes-Benz E63 AMG S, rear left.
• Fits 2020-2021 Mercedes-Benz E63 AMG, rear left.
• Fits 2021 Mercedes-Benz E63 AMG S, rear left, w/Front Air Suspension.
• Fits 2019 Mercedes-Benz E63 AMG S, rear left, w/Front Air Suspension.
• Fits 2016-2020 Mercedes-Benz GLC300, rear left.
• Fits 2021-2023 Mercedes-Benz GLC300, rear left.
• Fits 2021-2023 Mercedes-Benz GLC300e, rear left.
• Fits 2018-2020 Mercedes-Benz GLC350e, rear left.
• Fits 2017-2023 Mercedes-Benz GLC43 AMG, rear left.
• Fits 2018-2021 Mercedes-Benz GLC63 AMG, rear left.
• Fits 2018-2021 Mercedes-Benz GLC63 AMG S, rear left.
• Fits 2017-2018 Mercedes-Benz E250, rear left.
• Fits 2017-2018 Mercedes-Benz E400, rear left.
• Fits 2017-2018 Mercedes-Benz E400, rear left, Front air suspension required.
• Fits 2017-2020 Mercedes-Benz E43 AMG, rear left.
• Fits 2019-2020 Mercedes-Benz E450, rear left, Front air suspension required.
• Fits 2017-2018 Mercedes-Benz GLC250, rear left.

Common Problems This Part Can Address

• Rear suspension sag on the left side
• Air leaks from a worn bellows or sleeve
• Uneven ride height at the rear of the vehicle
• Compressor overwork caused by a leaking air spring
• Loss of ride comfort from a failing rear air suspension spring

Installation Notes and Tips

Confirm the vehicle’s rear left position and verify the exact model, year, and suspension configuration before installation. Some E-Class applications require front air suspension, and those notes are listed in the fitment data. Inspect airline condition, mounting points, and surrounding suspension components during replacement to help prevent repeat failures.

Arnott A-3314 uses a 4 mm airline fitting and a base cup lower mount. Mounting hardware, bearing plate, and boot are not included.

Quality Assurance

Arnott assembles this air spring in the USA using Tier 1 components, including heavy-duty crimp rings and high-impact resin top and piston components. The A-3314 rear left air spring is backed by Arnott’s industry-leading warranty.