A4 Mk1
| Turbocharger - exploded view |
| Turbocharger, oil pipes |
| 1 - | Bolt |
| q | Use only genuine bolt → Electronic parts catalogue |
| q | 40 Nm |
| 2 - | Gasket |
| q | Renew |
| 3 - | Catalytic converter |
| q | Removing and installing → Chapter |
| 4 - | Nut |
| q | Renew |
| q | 30 Nm |
| 5 - | Threaded connection |
| q | 30 Nm |
| 6 - | Threaded connection |
| q | 35 Nm |
| 7 - | Bolt |
| q | 20 Nm |
| 8 - | Oil supply pipe |
| q | Tighten union nut to 25 Nm |
| q | From oil filter bracket → Item |
| 9 - | Heat shield |
| 10 - | Exhaust manifold |
| q | Removing and installing → Chapter |
| 11 - | Bolt |
| q | Renew |
| q | Coat threads and contact surface of bolt head with high-temperature paste; for high-temperature paste refer to → Electronic parts catalogue |
| q | 35 Nm |
| 12 - | Bolt |
| q | 10 Nm |
| 13 - | Gasket |
| q | Renew |
| q | Note installation position |
| 14 - | Coolant return hose/pipe |
| q | Tighten union nut to 30 Nm |
| 15 - | Nut |
| q | Renew |
| q | 25 Nm |
| 16 - | Gasket |
| q | Renew |
| q | Note installation position |
| 17 - | Banjo bolt |
| q | 35 Nm |
| 18 - | Coolant supply pipe |
| 19 - | Securing clip |
| 20 - | Vacuum unit for charge pressure regulating valve |
| 21 - | Bolt |
| q | 10 Nm |
| 22 - | Bolt |
| q | Apply locking fluid when installing; refer to → Electronic parts catalogue |
| q | 10 Nm |
| 23 - | Gasket |
| q | Renew |
| 24 - | Oil return pipe |
| q | To sump |
| 25 - | Gasket |
| q | Renew |
| 26 - | Bolt |
| q | 10 Nm |
| 27 - | Bolt |
| q | 10 Nm |
| 28 - | Nut |
| q | Do not alter setting |
| q | Apply locking fluid when installing; refer to → Electronic parts catalogue |
| q | 10 Nm |
| 29 - | Turbocharger |
| q | Checking: engine codes AEB, AJL → Chapter |
| q | Checking: engine codes ANB, APU, ARK, ATW → Chapter |
| q | Removing and installing → Chapter |
| 30 - | Bolt |
| q | 45 Nm |
| 31 - | Support |
| q | For turbocharger |
| Air hoses, solenoid valves |
| 1 - | Vacuum hose |
| q | To intake manifold |
| 2 - | Mechanical air recirculation valve |
| q | Checking → Chapter |
| 3 - | Hose |
| q | To turbocharger air recirculation valve |
| 4 - | Air hose |
| q | To turbocharger |
| q | Must be free of oil or grease when installing |
| 5 - | Hose |
| q | To activated charcoal filter solenoid valve 1 -N80- |
| 6 - | Crankcase breather pipe |
| 7 - | Bolt |
| q | 10 Nm |
| 8 - | Panel bolt |
| 9 - | Hose |
| q | To crankcase breather pipe |
| 10 - | Pressure control valve for crankcase breather system |
| 11 - | Hose |
| q | To turbocharger |
| 12 - | Hose |
| q | To vacuum unit for charge pressure regulating valve |
| 13 - | Charge pressure control solenoid valve -N75- |
| 14 - | Elbow |
| 15 - | Air hose |
| q | From turbocharger |
| q | Must be free of oil or grease when installing |
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