A8L Quattro Sedan W12-6.0L (BSB) (2005)
Harmonic Balancer - Crankshaft Pulley: Service and Repair
Vibration Damper
Special tools, testers and auxiliary items required
‹› Counter-holder tool (T10069)
Removing
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Bring lock carrier into service position => [ Lock Carrier, Moving into Service Position ] See: Service and Repair/Lock Carrier, Moving into
Service Position.
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Carefully pull engine cover at the rear and middle upward and off - arrows 1 -.
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Then, pull the engine cover forward and off from intake manifold - arrows 2 -.
‹› Before removing ribbed belt, mark the turning direction on it with chalk or a felt tip pen. A reversed direction of rotation can cause damage to the
belt under operating conditions.
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To relieve tension on the ribbed belt, pivot the tensioner in direction of - arrow -, using a 30 mm box-end wrench.
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Remove ribbed belt and release tensioning device.
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Loosen center bolt - 1 - of the vibration damper, thereby holding the vibration damper with the counter-holder (T10069).