Damage profiles for a poly-V belt - AP13.22-P-1351-01A

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 Mercedes-Benz ML350, 2010 Mercedes-Benz ML350, 2009 Mercedes-Benz ML320, 2009 Mercedes-Benz GL320, and 2008 Mercedes-Benz ML320. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: In all cases, the poly-V belt may not continue to be used. Consequential damage can otherwise occur.

Flanks of the poly-V belts worn:

Fig 1: Identifying Damage Profile - Signal Edges Worn

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Courtesy of MERCEDES-BENZ USA

Tensile cord (brighter points) visible in base of poly-V belt:

Fig 2: Identifying Damage Profile - Tensile Cord Visible In Base

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Courtesy of MERCEDES-BENZ USA

Rear of belt damaged:

Fig 3: Identifying Damage Profile - Rear Of Belt Damaged

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Courtesy of MERCEDES-BENZ USA

Poly-V belt detached from poly-V belt base:

Fig 4: Identifying Damage Profile - Belt Detached From Base

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Courtesy of MERCEDES-BENZ USA

Fraying of outer cords:

Fig 5: Identifying Damage Profile - Fraying Of Outer Cords

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Courtesy of MERCEDES-BENZ USA

Cord torn out at the side:

Fig 6: Identifying Damage Profile - Cord Torn Out At Side

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Courtesy of MERCEDES-BENZ USA

Transverse cracks in several poly-V:

Fig 7: Identifying Damage Profile - Cord Torn Out At Side

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Courtesy of MERCEDES-BENZ USA

Chippings on poly-V belt:

Fig 8: Identifying Damage Profile - Chipping On Belt

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Courtesy of MERCEDES-BENZ USA

Individual transverse cracks in the poly-V belt:

Fig 9: Identifying Damage Profile - Individual Transverse Cracks

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Courtesy of MERCEDES-BENZ USA

Dirt or stones embedded in ribs:

Fig 10: Identifying Damage Profile - Dirt Or Stones Embedded In Ribs

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Courtesy of MERCEDES-BENZ USA

Heavy wear and deposits and lumps of rubber in base of rib:

Fig 11: Identifying Damage Profile - Heavy Wear/Deposits/Lumps In Base Of Rib

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Courtesy of MERCEDES-BENZ USA

Swelling through contact with engine oil, coolant, cold cleaning solvent etc:

Fig 12: Identifying Damage Profile - Swelling From Contact With Engine Oil, Coolant, Solvent, Etc.

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Courtesy of MERCEDES-BENZ USA