A6 Quattro Sedan V8-4.2L (ART) (2000)
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First hand-tighten bolts for valve body -arrows-.
Note: The bolts have different lengths. Be sure to use the correct ones when installing.
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Arrow A-: 5 bolts M6 x 30
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Arrow- 15 bolts M6 x 60
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Arrow B-: 1 bolt M6 x 55 (chromated, silver)
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Now tighten bolts for valve body from inside-out with 8 Nm (71 inch lbs.) to final torque.
Tightening torque