How to Replace the Rear Timing Chain & Tensioner on an Audi /Volkswagen (2004-08) FSI / Chain Noise 

$$$ Audi A4 (2004-2008) Timing Chain Tensioner Replacement: Full How-To Guide
Torque specs
Head cover 10Nm (7 ft-lb) Tighten from center out in a clockwise direction
Rear housing bolt 10Nm (7 ft-lb)
N205 mounting bolt 4Nm (35 in-lb)
Vacuum pump bolt 10Nm (7 ft-lb)
Camshaft adjuster (Phaser) 20Nm plus additional 45deg
Chain Tensioner 10Nm (7 ft-lb)
Cam Bearing bracket ( Cam Girdle ) 8Nm plus additional 90deg