Ribbed Belt For Accessories, Checking

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Engine damage caused by the camshaft drive jumping off.

Only rotate the crankshaft in the direction of engine rotation.

Maintenance point only applies to certain countries. Refer to appropriate service information.

Removal Procedures:

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Remove the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING - CYNB , or RIBBED BELT, REMOVING AND INSTALLING - CTGE, CEUC , or RIBBED BELT, REMOVING AND INSTALLING - CPNB , or RIBBED BELT, REMOVING AND INSTALLING - CREC, CREH . .

Procedure:

-- Check the removed ribbed belt along the entire length as well as the visible belt pulleys on the engine. Note the following points when doing this:

Tears or breaks on the tension belt tread and the back side (cracks, core ruptures, cross sectional breaks)
Separation (cover layer, belt cords)
Fraying of cords
Foreign objects imbedded in the tension belt tread and on the back side
Excessive oil and grease on the rollers and the belt pulleys
Belt pulley wear on the flanks (material wear, frayed flanks, surface cracks) -image-

Courtesy of AUDI OF AMERICA, LLC

-- Applies to vehicles with power steering pump: check the generator free-running hub.

-- If there are defects, replace the damaged components.

Installation procedures occur in reverse order.

NOTE:

The illustration shows a possible damage pattern of the belt pulley. The material wear at the affected flanks for the rib treads can appear in various forms.