Continental 49813 Accessory Drive Belt Tensioner Assembly - Accessory Drive

Overview of Continental Multi-V Accessory Drive Belt Tensioner Assembly

The Continental Multi-V Accessory Drive Belt Tensioner Assembly, part number 49813, is engineered for precise belt tension control in various BMW models. Designed to maintain optimal tension on the accessory drive belt, this component supports reliable engine performance and accessory operation.

• Compatible with multiple BMW models including 120i, 220i, 320i, 328i, 428i, 528i, X1, X3, X4, and Z4
• Features a single non-flanged thermoplastic pulley with a smooth surface
• Pulley dimensions: 2.56 inches outside diameter, 0.98 inches width, and 0.670 inch bore diameter
• Part of the Continental Multi-V product line, known for durable belt system components
• Part number 49813 ensures exact fit and function for specified BMW vehicles

Detailed Product Description and Attributes

This accessory drive belt tensioner assembly includes one pulley made from thermoplastic material, chosen for its durability and resistance to wear. The pulley is non-flanged with a smooth surface, which helps reduce belt wear and noise during operation. The pulley’s outside diameter measures 2.56 inches, with a width of 0.98 inches and a bore diameter of 0.670 inches, ensuring compatibility with the belt system of the specified BMW models.

The Multi-V product line by Continental focuses on accessory drive belt system components designed to meet OEM specifications. This tensioner assembly is engineered to provide consistent belt tension, which is critical for the proper functioning of engine accessories such as the alternator, power steering pump, and air conditioning compressor.

Compatible BMW Models and Applications

• BMW 120i, 220i, 228i, 228i xDrive
• BMW 320i, 320i xDrive, 328i, 328i GT xDrive, 328i xDrive
• BMW 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe
• BMW 528i, 528i xDrive
• BMW X1, X3, X4, Z4

Common Issues Addressed by This Tensioner Assembly

• Eliminates belt slippage caused by improper tension
• Reduces noise from worn or damaged pulleys
• Prevents premature belt wear and potential accessory failure
• Maintains consistent accessory drive performance under varying engine loads
• Supports smooth operation of engine-driven components

Installation Notes and Tips

Ensure the correct alignment of the tensioner pulley during installation to avoid belt misalignment. Verify that the pulley bore diameter matches the mounting shaft for a secure fit. It is recommended to inspect the accessory drive belt for wear and replace it if necessary when installing the tensioner assembly. Use appropriate tools to apply the correct tension and avoid over-tightening, which can cause premature component failure.

Quality Assurance and Warranty

Continental’s Multi-V tensioner assemblies are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 49813 should be confirmed with the supplier, Continental products typically come with a limited warranty covering defects in materials and workmanship.