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Mercedes-Benz S430 4MATIC Problems

Harmonic Balancer May Fail and Damage Timing Cover on Mercedes-Benz S430 4MATIC

Problem Description and Possible Solution

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.

(4 people reported this problem)

Mercedes-Benz S430 4MATIC Vehicles With This Problem

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Average mileage: (–)
4 model years affected: 2003, 2004, 2005, 2006
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