A3 Mk2
| Toothed belt drive - exploded view, engine code BLX, BLY, BLR, BVY and BVZ |
| 1 - | 10 Nm |
| 2 - | Toothed belt cover (top) |
| 3 - | 50 Nm + turn 180° further |
| q | Renew |
| q | Use counterhold tool -3036- to loosen and tighten |
| 4 - | Camshaft sprocket |
| q | Installation position fixed by Woodruff key |
| 5 - | 10 Nm |
| q | Apply locking fluid when fitting |
| 6 - | Toothed belt cover (rear) |
| 7 - | Woodruff key |
| q | Check for firm attachment |
| 8 - | 25 Nm |
| 9 - | Semi-automatic tensioning roller |
| 10 - | Coolant pump |
| q | Removing and installing → Chapter |
| 11 - | O-ring |
| q | Renew |
| 12 - | 25 Nm |
| 13 - | Damper wheel |
| 14 - | 15 Nm |
| 15 - | 35 Nm |
| 16 - | Damper wheel |
| 17 - | Sealing flange |
| 18 - | Crankshaft sprocket |
| q | Contact surface between sprocket and crankshaft must be free of oil |
| q | Can only be installed in one position |
| 19 - | 90 Nm + 90° (1/4 turn) further |
| q | Renew |
| q | Do not lubricate with oil |
| q | Use counterhold tool -3415- to loosen and tighten |
| 20 - | Toothed belt |
| q | Before removing, mark direction of rotation with chalk or felt-tip pen |
| q | Check for wear |
| q | Removing and installing → Chapter |
| 21 - | Toothed belt cover (bottom) |
| 22 - | Engine support |
| 23 - | 45 Nm |
| 24 - | Cap for toothed belt cover |
