Examining poly V-belt, damage patterns - RA13001193430X(13-3430)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Preceding work:

Hood raised to vertical position (01-0080) .

Fig 1: Locating Poly V-Belt, Damage Points

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

EXAMINING

Poly V-belt (11)	mark with chalk at a clearly visible point (arrow).
Engine	crank with starter in stages (01-0110) .
Poly V-belt (11)	examine for signs of damage.
Examination	ended once marking (arrow) is again visible (one full revolution of belt).

Damage patterns

The poly V-belt must be replaced (subject to separate repair order) if the following damage patterns are present:

Rubber clumps in base of belt (C), dirt or grid embedded (D).

Fig 2: Identifying Damage Patterns
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Wear
Wear to flanks (F)
Ribs are pointed - trapezoidal in shape when new (E) and cord is visible in base of belt (G, lighter points).

Fig 3: Locating Ribs Pointed
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Rib (arrow) detached from base of belt. Splitting across several ribs (H).

Fig 4: Locating Several Ribs
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Splitting across ribs (H) and/or sections of belt broken off (J).

Fig 5: Splitting Across Ribs
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Cord fractured at the side (K) or fraying (L) of outer cords.

Fig 6: Identifying Drive Belt Fraying Of Outer Cords
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Splitting across the back (M).

Fig 7: Identifying Splitting Across Back
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.