Drive Belt: Testing and Inspection

Ribbed Belt, Checking


Always replace the ribbed belt if it is faulty. This can help prevent failures and malfunctions.

- Turn the engine by the vibration damper/belt pulley using a wrench.

- Check the ribbed belt for:

• Cracks in the underside (surface cracks, fragmenting, cross-section breaks).

• Layer separation (outer layer, tension cords).

• Wear-through on the underside.

• Fraying of tension cords.

• Edge wear (material wear, frayed edges, hardened edges -glazed edges-, surface cracks).

• Oil and grease traces.