A3 Mk2
| Camshaft housing - exploded view |
| 1 - | Guide sleeve |
| 2 - | Seal |
| q | Inserted into cylinder head |
| q | 4x |
| q | Renew |
| 3 - | Oil strainer |
| q | Inserted in cylinder head |
| q | Renew |
| 4 - | Camshaft housing |
| q | With integrated camshaft bearings |
| q | Removing and installing → Chapter |
| q | Remove old sealant residues |
| q | Carefully clean sealing surfaces; they must be free of oil and grease |
| q | Coat with sealant before installing; for sealant refer to → Electronic parts catalogue |
| q | Installing: fit vertically from above onto stud and dowel pins |
| 5 - | O-ring |
| q | Renew |
| 6 - | Camshaft control valve 1 -N205- |
| 7 - | Bolt |
| q | 10 Nm |
| 8 - | High-pressure pump with fuel pressure regulating valve -N276- |
| q | Removing and installing → Rep. Gr.24 |
| 9 - | Bolt |
| q | Tightening torque → Rep. Gr.24 |
| 10 - | O-ring |
| q | Renew |
| 11 - | Roller tappet for high-pressure pump |
| q | Installation position: can only be inserted in one position. |
| 12 - | O-ring |
| q | Renew |
| 13 - | Hall sender -G40- |
| 14 - | Bolt |
| q | 10 Nm |
| 15 - | Bolt |
| q | Renew |
| q | Note correct sequence when loosening → Anchor |
| q | Tightening torque and sequence → Fig. |
| 16 - | O-ring |
| q | Renew |
| 17 - | Sealing cap |
| 18 - | Bolt |
| q | 10 Nm |
| 19 - | Inlet camshaft |
| q | With cam for high-pressure pump |
| q | Before removing, detach roller tappet for high-pressure pump |
| q | Checking axial clearance → Chapter |
| q | Removing and installing → Chapter |
| q | Lubricate with oil before installing (also lubricate collar of axial bearing) |
| 20 - | Exhaust camshaft |
| q | Checking axial clearance → Chapter |
| q | Removing and installing → Chapter |
| q | Lubricate with oil before installing (also lubricate collar of axial bearing) |
Note
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| Stage | Bolts | Tightening torque/angle specification |
| 1. | -1 … 15- | 10 Nm |
| 2. | -1 … 15- | turn 90° further |
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