Continental 49824 Accessory Drive Belt Tensioner Assembly - Accessory Drive

Accessory Drive Belt Tensioner for Mercedes-Benz

Continental Multi-V part number 49824 is an accessory drive belt tensioner assembly built for confirmed Mercedes-Benz applications. It is engineered to maintain belt tension and alignment while helping reduce vibration in the accessory drive system.

Key Features

• Accessory drive belt tensioner assembly for Multi-V belt systems
• Accu-Drive technology uses a round torsion spring to help dampen vibration
• Helps compensate for belt wear and maintain consistent tension
• Designed to meet or exceed OEM fit and performance targets
• Single smooth thermoplastic pulley with non-flanged design
• Pulley dimensions: 2.56 in. outside diameter, 0.87 in. width, 0.670 in. bore diameter

Product Details

Continental’s Multi-V line focuses on OE-style accessory drive components for modern serpentine belt systems. This Continental 49824 tensioner assembly uses a thermoplastic pulley and a torsion-spring design to keep the belt tracking correctly as the system ages. For Mercedes-Benz CLA250, GLA250, GLB250, A220, and related AMG models, stable belt tension helps support consistent operation of the alternator, water pump, A/C compressor, and other belt-driven accessories.

This part cross-references Four Seasons 39372 for the same application.

What It Helps Address

• Belt squeal from inconsistent accessory drive tension
• Belt flutter caused by vibration in the drive system
• Premature belt wear from poor alignment or weak spring pressure
• Accessory noise related to a worn tensioner pulley
• Reduced accessory drive stability on high-mileage Mercedes-Benz vehicles

Installation Notes and Tips

• Verify the belt routing and pulley alignment before installation.
• Inspect the serpentine belt, idler pulleys, and related accessory drive components at the same time.
• Confirm the vehicle application by year, make, model, and accessory drive configuration before ordering.
• Fits 2014-2023 Mercedes-Benz CLA250, Accessory Drive
• Fits 2020-2023 Mercedes-Benz CLA35 AMG, Accessory Drive
• Fits 2015-2023 Mercedes-Benz GLA250, Accessory Drive
• Fits 2020-2023 Mercedes-Benz GLB250, Accessory Drive
• Fits 2021-2023 Mercedes-Benz GLB35 AMG, Accessory Drive
• Fits 2019-2022 Mercedes-Benz A220, Accessory Drive
• Fits 2020-2021 Mercedes-Benz A35 AMG, Accessory Drive
• Fits 2014-2019 Mercedes-Benz CLA45 AMG, Accessory Drive
• Fits 2015-2019 Mercedes-Benz GLA45 AMG, Accessory Drive
• Fits 2013-2018 Mercedes-Benz B250, Accessory Drive
• Fits 2017 Mercedes-Benz GLC43 AMG, Accessory Drive

Quality Assurance

Continental designs this tensioner assembly to meet or exceed OEM fit and performance expectations, with Accu-Drive technology focused on vibration control, belt wear compensation, and consistent alignment for long-term accessory drive operation.