Lubrication system of a 5-cylinder petrol engine (Audi 100 C4)

1 Oil level indicator
2 Gasket (replace)
3 Oil pressure sensor 0.3 bar, 26 Nm
4 Oil pressure sensor 0.3 bar, 25 Nm
5 Suction pipe
6 Oil receiver
7 Oil pan
8 Bolt, 20 Nm
9 Drain plug, 40 Nm
10 Bolt, 25 Nm
11 Flywheel cover
12 Bolt, 10 Nm
13 Lock washer (replace)
14 Oil pan gasket (does not stick)
15 Oil pressure regulator
16 Adapter, 50 Nm
17 Oil filter
18 Plug