How to Change the Fan Belt on a 1992 Mercedes SEL 500

1. Open your Mercedes' hood so you can access the belt. Be sure the engine is cool before operating.
2. Loosen every bolt in the series that binds the belt into place. Take special care to remember the pattern in which the fan belt is attached. This is the same pattern you'll follow to route the new fan belt. Do not remove the bolts, simply loosen them so that the belt looses tension at each point.
3. Pull the belt out of each connection, making sure you leave it intact so that you can compare it to the new belt.
4. Stretch the old and new belts out completely with both hands. Compare the size of each belt to make sure the new belt will fit your Mercedes' engine.
5. Route the belt along each pulley, following the pattern you took note of when loosening the tension. Press down with a free hand after connecting the belt to each pulley so that you continuously create tension in the belt.
6. Tighten the belt at each point along the pattern by turning the bolts hard to the right, which will hold the belt in place.
7. Clean your workplace and put away all tools. Discard of the old fan belt.