1 Oil filler neck
2 Camshaft drive gear
3 Timing belt cover
4 Timing belt tensioner
5 Toothed belt
6 V-belt
7 Intermediate shaft gear
8 Crankshaft pulley
9 Water pump pulley
10 Oil pan
11 Piston
12 Thermostat
13 Intermediate shaft
14 Crankshaft with counterweights
15 Oil pump
16 Oil pump and distributor drive shaft
17 Oil filter
18 Connecting rod
19 Fuel pump
20 Distributor
21 Inlet valve of the third cylinder
22 Spark plug
23 Pusher with valve spring
24 Camshaft
25 Engine crankcase ventilation
(Content source: the specified website: «AudiManual»)
