18 31 Exhaust system
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TIGHTENING TORQUE SPECIFICATIONS - EXHAUST SYSTEM
| Type | Thread | Tightening specifications | Dimension | ||
|---|---|---|---|---|---|
| 1AZ | Exhaust system to diesel particle filter | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1 | Clamp | 51 Nm | |
| N57 D30 S 1/N57 D30 O 1/N57 D30 S 1 | nut M8 | 19 Nm | |||
| 2AZ | Exhaust system to turbocharger | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | Clamp | Replace bolt and clamp. | 13 Nm |
| 3AZ | Exhaust manifold to cylinder head | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1 | M7 nut | 1. Perform tightening from inside outwards | |
| 2. Initial torque | 11 Nm | ||||
| 3. Final torque | 13 Nm | ||||
| N57 D30 S 1 | nut M8 | 1. Perform tightening from inside outwards Observe repair instructions. | |||
| 2. Initial torque | 11 Nm | ||||
| 3. Final torque | 15 Nm | ||||
| 4AZ | Pressure hose to the exhaust backpressure sensor or exhaust backpressure pipe | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | Screw clamp | 3 Nm | |
| 5AZ | Diesel particle filter to holder | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | M8 | 19 Nm | |
| 6AZ | Banjo bolt, exhaust backpressure pipe | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0 | 35 Nm | ||
| N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | 30 Nm | ||||
| 7AZ | Heat shield to exhaust manifold | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | nutM6 | 8 Nm | |
| 8AZ | Exhaust-gas recirculation to exhaust manifold | N57 D30 U 0/N57 D30 O 0/N57 D30 T 0/N57 D30 O 1/N57 D30 T 1/N57 D30 S 1 | M8 | 30 Nm | |
| 9AZ | Stud to cylinder head | N57 D30 S 1 | M8 | 19 Nm | |
| 10AZ | Metering unit to diesel particulate filter | N57 D30 O 1/N57 D30 T 1 | Clamp | 10 Nm | |