$$$ Audi A4 (20042008) Timing Chain Tensioner Replacement: Full HowTo Guide
Torque specs
Head cover 10Nm (7 ftlb) Tighten from center out in a clockwise direction
Rear housing bolt 10Nm (7 ftlb)
N205 mounting bolt 4Nm (35 inlb)
Vacuum pump bolt 10Nm (7 ftlb)
Camshaft adjuster (Phaser) 20Nm plus additional 45deg
Chain Tensioner 10Nm (7 ftlb)
Cam Bearing bracket ( Cam Girdle ) 8Nm plus additional 90deg