A3 Mk2
| Timing chain covers - exploded view |
| 1 - | Engine speed sender -G28- |
| q | Removing and installing → Rep. gr.28 |
| 2 - | Crankshaft oil seal (gearbox end) |
| q | Renewing → Chapter |
| 3 - | Dowel sleeve |
| 4 - | Bolt |
| q | Tightening torque and sequence → Fig. |
| 5 - | O-ring |
| q | Renew |
| 6 - | Cylinder head gasket |
| 7 - | Centre hex stud |
| q | Tightening torque and sequence → Fig. |
| 8 - | Nut |
| q | 8 Nm |
| 9 - | Bracket |
| q | For engine cover panel, high-pressure line and exhaust gas temperature sender 1 -G235- |
| 10 - | Bolt |
| q | 8 Nm |
| 11 - | Nut |
| q | 8 Nm |
| 12 - | Bracket |
| q | For engine cover panel and electrical connectors |
| 13 - | Centre hex stud |
| q | Tightening torque and sequence → Fig. |
| 14 - | Filler cap for oil filler neck |
| 15 - | Grommet |
| 16 - | Upper cover for timing chains |
| q | Removing and installing → Chapter |
| q | Apply sealant when installing; refer to → Electronic parts catalogue |
| 17 - | Bolt |
| q | Tightening torque and sequence → Fig. |
| 18 - | Oil seal |
| q | Renewing → Chapter |
| 19 - | Sealing sleeve |
| q | Renew |
| 20 - | Timing chain cover (bottom) |
| q | Removing and installing → Chapter |
| q | Apply sealant when installing; refer to → Electronic parts catalogue |
| 21 - | Plug |
| 22 - | Dowel sleeve |
| 23 - | Bolt |
| q | Tightening torque → Rep. gr.28 |
Note
|
|
| Stage | Bolts | Tightening torque |
| 1. | -1 … 12- | Screw in bolts by hand until they make contact |
| 2. | -1 … 12- | 9 Nm |
Note
|
|
| Stage | Bolts | Tightening torque |
| 1. | -1 ... 6- and -arrows- | Screw in bolts by hand until they make contact |
| 2. | -arrows- | 5 Nm |
| 3. | -1 … 6- | 8 Nm in diagonal sequence |
| 4. | -arrows- | 8 Nm |
| 5. | -1 … 6- | 20 Nm in diagonal sequence |
| 6. | -arrows- | turn 90° further |
