A8 Quattro Sedan V8-4.2L (AUX) (2001)
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Remove outer ring for viscous fan -arrows-.
Remove electric fan.
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Hold fan pulley with pin wrench 3212 and unscrew fan with open-end wrench 3312 (left-hand thread).
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Remove viscous fan together with outer ring.
Notes:
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Mark direction of rotation of the ribbed belt with chalk or felt pen before removing. A used belt can break if it rotates in the wrong direction.
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When re-installing a used ribbed belt, be sure the belt runs in the right direction and seats correctly on the belt pulleys.