Ribbed Belt, Checking Condition

Please Perform The Following Procedure:

-- Remove the "lower" engine compartment cover (noise insulation). Refer to LOWER ENGINE COMPARTMENT COVER (NOISE INSULATION), REMOVING AND INSTALLING .

-- Turn the engine at the vibration damper/belt pulley using a suitable 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)

CAUTION:

It is essential to replace ribbed belt if malfunctions are found.
Ribbed belts on diesel engines, which have come into contact with oils, brake fluid, fuel or AdBlue, must always be replaced.
Ribbed belts on gasoline engines, which have come into contact with oils, brake fluid, fuel or coolant, must always be replaced.
This will prevent any belt malfunctions.
Replacing the belt is a repair procedure.

-- Install the engine compartment cover (noise insulation) "bottom". Refer to LOWER ENGINE COMPARTMENT COVER (NOISE INSULATION), REMOVING AND INSTALLING .