serpentine belt slipped from the pulley, and it caused my car to overheat, and the A/C to stop cooling?

2016 MERCEDES BENZ CLA250
130,000 MILES • TURBO • AUTOMATIC
Avatar
SAYTHA
  • MEMBER
  • 1 POST
I am unable to drive it and have been told that the belt isn’t the problem, that the pulleys need to be replaced and I would like a second opinion because I’m unsure of the issue.
Aug 10, 2023 at 10:30 PM
Advertisement
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,426 POSTS
Yes, it is common for the belt tensioner to fail causing the belt to come off, but you could have an accessory and has seized up like an alternator or gear pulley so now that the belt is off try to spin each accessory pulley, they should rotate smoothly and easily. Here is information on changing the belt tensioner out. Check out the images (below). Please let us know how it goes.


Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Aug 11, 2023 at 12:30 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.