Belt Tensioner Tool 10mm Hex for Mercedes W169 W245

A belt tensioner tool made for Mercedes A-Class W169 and B-Class W245 models, used when tensioning and loosening the ribbed belt tensioner. It uses a 10mm inner hex drive and is intended for vehicles with start-stop function and/or air conditioning where access to the tensioner setup needs the correct tool.

Used for belt changes, auxiliary belt servicing and general vehicle maintenance, this tool helps when releasing tension safely before removing or refitting the ribbed belt. It suits garage work, workshop servicing and home mechanics working on Mercedes models where the tensioner damper spring needs controlled movement. When carrying out regular servicing, having the correct tensioner tool can make the job more straightforward and help avoid unnecessary strain on the tensioner element.

The spindle is fitted with a ball head to help with access during use, which is useful when working in tighter engine bay areas. Supplied for use as OEM reference 266589003100, it is suitable for Mercedes A-Class W169 models from 2004 to 2012 and B-Class W245 models from 2005 to 2011, including A150, A160, A170, A180, A200, A200T, B150, B160, B170, B180, B200 and B200T. With a gross weight of 410g, it is substantial enough for regular servicing without being awkward to handle. A practical choice for repeated maintenance work on the listed vehicles.

Mercedes belt tensioner tool specifications

• Fitment: Suitable for Mercedes A-Class W169 and B-Class W245 models.
• Drive size: 10mm inner hexagon connection.
• Application: Used for tensioning and loosening the ribbed belt tensioner.
• Design: Spindle with ball head for improved access during use.
• Reference: For use as OEM 266589003100 on compatible vehicles.
• Protection: Prevents damage to the tensioner element.

Useful to keep close to hand for Mercedes belt servicing and related repair work.