P07.16-2678-08
1 | High pressure pipe | 4 | Connector | 6 | Union nut | ||
2 | Connector | 5 | Cable duct | Y74 | Pressure regulator valve | ||
3 | Connector |
| Remove/install | ||
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
Danger | Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure | Keep all ignition sources out of hazard area. | |
1 | Remove water collector | ||
2 | Remove vacuum reservoir | ||
3 | Detach plugs (2, 3, 4) | ||
4 | Remove high-pressure line (1) | ||
Notes about Common-Rail components | |||
Installation: Replace high-pressure line (1). | |||
Bolt, pressure line bracket to cylinder head cover | |||
Nut, pressure line on high pressure pump | |||
Nut, pressure line to rail | |||
5 | Remove screws of the cable duct (5) | The cable duct (5) is fastened with three screws. | |
6 | Remove union nut (6) of the pressure regulating valve (Y74) and remove pressure regulating valve (Y74) with sealing ring | ||
Notes about Common-Rail components | |||
Installation: Install new sealing ring of the pressure regulating valve (Y74). | |||
Pressure regulator valve on rail | |||
7 | Install in the reverse order | ||
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
8 | Perform engine test run and check leak tightness of the fuel system in the area of the pressure regulating valve (Y74) | ||
9 | Read out fault memory | STAR DIAGNOSIS diagnosis system | |
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