Front sealing flange and oil pump drive chain, removing and installing: Removing

Remove ribbed belt. See RIBBED BELT, REMOVING AND INSTALLING
Remove toothed belt. See TOOTHED BELT, REMOVING AND INSTALLING .
Drain engine oil.
NOTE: Use a separate container to collect the engine oil.
Remove lower section of oil pan.
Unbolt cover plate for oil pump sprocket (-2-).
NOTE:
- When loosening bolt -2- securing cover plate, counter-hold at welded nut.
- When installing, make sure that the plate engages in position -arrows-.
Fig 1: Removing Lower Section Of Oil Pan
Courtesy of AUDI OF AMERICA, INC.
Unbolt both oil supply lines -1- and -3- from upper section of oil pan and pull longer of two lines away downward.

Fig 2: Removing Oil Supply Lines
Courtesy of AUDI OF AMERICA, INC.
Remove 4 bolts from upper section of oil pan.

Fig 3: Removing 4 Bolts From Upper Section Of Oil Pan
Courtesy of AUDI OF AMERICA, INC.
Remove following components before unbolting front sealing flange:
1. Tensioning roller for toothed belt: 20 Nm
2. Idler wheel: 45 Nm
3. Toothed belt tensioner: 10 Nm
4. Lever for toothed belt tensioner: 20 Nm
Fig 4: Removing Toothed Belt Tensioning Components
Courtesy of AUDI OF AMERICA, INC.
Unbolt front sealing flange and take off gasket for front sealing flange M6 bolts: 10 Nm M8 collar bolt: 30 Nm.

Fig 5: Removing Front Sealing Flange
Courtesy of AUDI OF AMERICA, INC.