Harmonic Balancer May Fail and Damage Timing Coveron Mercedes-Benz CL55 AMG

The rubber bond in the harmonic balancer can decay, which causes the balancer to move and work its way toward the timing cover. If the balancer comes into contact with the timing cover while the engine is running, it will fracture and damage the cover and potentially other surrounding parts. The harmonic balancer should be inspected at every service.

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Average mileage : (–)
6 Years Affected: 2001, 2002, 2003, 2004, 2005, 2006
8 people reported this problem
1 person shared problem details
it is separating at the rubber. the belt is now riding on the edge of the pulley. i will replace with a new unit.
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