2. Run your fingers along the entire length of the belt, feeling for cracks and delamination. Also check for abrasions and polished areas. The belt should be inspected from both sides, which means it needs to be twisted. At the same time, make sure there is no rust, cracks or burrs on the pulleys. The working surface of the belt may have shallow perpendicular cracks. If these cracks do not extend beyond one rib and are not very deep, there is no need to replace the belt.
Wear of the edges of the drive belt ribs
Transverse cracks (D) on the back side of the belt and delamination of the ribs (E)
Fraying of side ribs (F), cracks (H) and delamination of side ribs (G)
Rib tearing (J), cracks (K)
3. Make sure the belt is positioned correctly on the pulleys.
4. If necessary, replace the drive belt (see chapter Engine).
5. The tension is checked using a special device in places (see illustrations Engine Compartment Components).