A4 Mk2
Toothed belt drive - exploded view of components |
1 - | Toothed belt cover (bottom) |
q | Unbolt vibration damper prior to removing |
2 - | 10 Nm |
q | Install using locking fluid; for locking fluid refer to → Parts catalogue |
3 - | Toothed belt cover (centre) |
q | Unbolt poly V-belt tensioner prior to removing |
4 - | Toothed belt cover (top) |
q | Engage carefully in centre toothed belt cover when installing |
5 - | 10 Nm |
6 - | Toothed belt |
q | Before removing, mark direction of rotation with chalk or felt-tipped pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage. |
q | Check for wear |
q | Do not kink |
q | Removing and installing → Chapter |
q | Detaching from camshaft sprocket → Chapter |
7 - | 40 Nm |
8 - | 50 Nm + turn 90° further |
q | Renew |
q | Use counterhold tool -3036- when loosening and tightening |
9 - | Camshaft sprocket |
q | Remove toothed belt from camshaft sprocket prior to removing → Chapter |
10 - | Tensioning roller |
11 - | Washer |
12 - | Retaining plate for tensioning roller |
13 - | 9 Nm |
q | Install using locking fluid; for locking fluid refer to → Parts catalogue |
14 - | Idler roller |
15 - | 40 Nm |
16 - | O-ring |
q | Renew |
q | Lubricate with coolant prior to installing |
17 - | Coolant pump |
q | Removing and installing → Chapter |
18 - | 15 Nm |
19 - | 40 Nm |
20 - | 15 Nm |
21 - | Retaining plate for tensioner/damper |
22 - | 15 Nm |
23 - | Tensioner/damper |
24 - | Idler roller |
25 - | 25 Nm |
26 - | Crankshaft sprocket |
q | Contact surface between sprocket and crankshaft must be free of oil |
q | Can only be installed in one position |
27 - | 90 Nm + 90° (1/4 turn) further |
q | Renew |
q | Do not lubricate with oil |
q | Use counterhold tool -3415- when loosening and tightening |