Inspection & Verification

Verify the customer's concern by operating the engine to duplicate the condition.
Inspect to determine if any of the following mechanical concerns apply:

Fig 1: Visual Inspection Chart
Courtesy of MAZDA MOTORS CORP.

NOTE: Minor cracks in the V-grooved portion of the drive belt are considered normal and acceptable. If the drive belt has chunks missing from the ribs, a new drive belt should be installed.

Install a new drive belt if any of the following conditions exist: rib chunk-out, severe glazing, frayed cords or other concerns.
Inspect for drive belt cracking/chunking/wear.

Fig 2: V-Ribbed Serpentine Drive Belt With Cracks Across Ribs
Courtesy of MAZDA MOTORS CORP.

Fig 3: V-Ribbed Serpentine Drive Belt With Chunks of Rib Missing
Courtesy of MAZDA MOTORS CORP.