Ribbed Belt, Checking Condition

Perform the Following Procedure:

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

Check ribbed belt -1- for:

Fig 1: Checking Ribbed Belt

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Sub-surface cracks (cracks, core ruptures, cross sectional breaks)
• Separation (cover layer, belt cords)
• Breaks at lower layer
• Fraying of cords
• Wear at flanks (material wear, frayed flanks, hardening or glazing of flanks, surface cracks)
• Oil or grease contamination