A8L Quattro Sedan V8-4.2L (BVJ) (2007)
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5 - Wheel electronics
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Battery service life approx. 7 years
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Must always be replaced completely
6 - Micro-encapsulated bolt (Torx(R) T20)
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Tightening torque 4 Nm
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Always replace bolt
7 - Union nut
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Tightening torque 4 Nm
8 - Chamfered washer
Removing and installing metal valve body
