Mercedes Belt Diagram. The old belt removed was marked mercedes benz a0139971592 5k1750 sk 532a although this pulley wheel looks ok the cause was this pulley. Squeky sounds coming off the belt so decided to change it out.
Simply pull forward and up to detach it. Remove the retention clips and screws. Routed ok but which pully.
Parts for this project.
The belt tensioner is spring loaded and requires a lot of leverage. Step 1 remove engine cover and intake hoses v6 engine the 272 will require you to remove the front engine cover. If your belt shows any of these signs you should replace it. A hell lot of patience view attachment 66790 step 1.