Febi 37697 Accessory Drive Belt Tensioner Assembly

Accessory Drive Belt Tensioner for Mercedes-Benz

Febi 37697 is an automatic accessory drive belt tensioner assembly built with an aluminium housing and a plastic pulley. It is specified for select Mercedes-Benz C-Class and SLK applications where correct belt tension is critical for accessory drive performance.

Key Features

• Automatic accessory drive belt tensioner assembly
• Aluminium housing for stable mounting support
• Plastic pulley with 28.0 mm pulley surface width
• 76.0 mm outside diameter
• Direct-fit service part for select Mercedes-Benz engines
• Febi part number 37697

Detailed Description

This Febi accessory drive belt tensioner assembly is engineered for vehicles that use an automatic belt tensioning system to maintain proper accessory belt load. The aluminium housing and plastic pulley are matched to the listed dimensions, including a 76.0 mm outside diameter and 28.0 mm pulley surface width, to support consistent belt tracking and tension control. Febi 37697 cross-references Mercedes-Benz OE part number 271 200 04 70 for the same application. It is a fitment-based replacement for select Mercedes-Benz C200, C250, C180, and SLK200 models, including 2014 Mercedes-Benz C200, 2012-2014 Mercedes-Benz C250, 2011-2012 Mercedes-Benz C180, and 2010-2011 Mercedes-Benz SLK200. Febi 37697 is a practical choice when servicing the accessory drive belt system on Mercedes-Benz C-Class and SLK vehicles with the listed engine-number break.

What It Helps Address

• Loss of proper accessory belt tension
• Belt noise caused by a worn tensioner pulley or spring mechanism
• Uneven belt tracking in the accessory drive system
• Accessory drive belt vibration under engine load
• Service replacement for a worn Mercedes-Benz belt tensioner assembly

Installation Notes and Tips

Verify the engine number break listed in the fitment notes before ordering. Confirm pulley diameter, pulley surface width, housing material, and automatic operating mode against the original part. Inspect the accessory belt, idler pulleys, and related drive components during service so the new tensioner can operate correctly. Fits 2014 Mercedes-Benz C200, N/A. Fits 2012-2014 Mercedes-Benz C250, N/A. Fits 2011-2012 Mercedes-Benz C180, N/A. Fits 2010-2011 Mercedes-Benz SLK200, N/A.

Quality Assurance

Febi manufactures replacement parts to meet application-specific dimensional and material requirements for European vehicle service. Part number 37697 is built for the listed Mercedes-Benz fitments and OE cross-reference application.