W07.05-1007-09
Shown on engine 471.9. as of engine end number 032691 |
1 | Fuel filter module | 5 | Electrical connector | 9 | Bolts | ||
2 | Bracket | 6 | Coolant line | 10 | Sealing rings | ||
3 | Fuel lines | 7 | Bracket | Y642 | Quantity control valve | ||
4 | Fuel lines | 8 | Fuel system high pressure pump |
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. | |
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. | |
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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Notes on self-locking nuts and bolts | ||
| Remove/install | ||
1 | Drain fuel at fuel filter module (1) | ||
2.1 | Drain the refrigerant on engine radiator and engine | Engine up to engine end number 032690 | |
2.2 | Drain coolant at engine | Engine as of engine end number 032691 | |
3 | Remove fuel filter module (1) |
| |
4 | Remove bracket (2) on fuel filter module (1) | Only for engine as of engine end number 032691 | |
5 | Remove fuel lines (3, 4) | Only for engine as of engine end number 032691 | |
Installation: Install new sealing rings. | |||
Flange, low pressure fuel line to fuel high-pressure pump | |||
Screw, fuel line to flange for fuel high-pressure pump | |||
Bolt, flange for fuel line to fuel filter module | |||
6 | Disconnect electrical connection (5) at quantity control valve (Y642) | ||
7 | Remove coolant line (6) on crankcase | Installation: Replace sealing ring for coolant line (6). | |
8 | Remove bracket (7) on the fuel system high pressure pump (8) and on the crankcase | Engine 471.9Screw/nut, holder to fuel high-pressure pump | |
Engine 471.9Screw, fuel high-pressure pump holder to crankcase | |||
9 | Remove screw/bolts (9) | Engine 471.9Screw, quantity control valve to fuel high-pressure pump | |
Torque wrench | |||
10 | Remove the quantity control valve (Y642) | Remove quantity control valve (Y642) by hand out of the housing flange for fuel system high pressure pump (8) using turning movements. Collect escaping fuel. | |
Installation: Replace sealing rings (10). Wet sealing rings (10) with fuel before installing. | |||
11 | Install in the reverse order | ||
12 | Connect diagnostic system and perform quick test | Only if the quantity control valve (Y642) has been replaced. | |
See information from body manufacturer. | |||
13 | Reset "Adaptation area for quantity control valve" | Only if the quantity control valve (Y642) has been replaced. | |
The process is completely menu-assisted under: | |||
14 | Remove diagnostic system | Only if the quantity control valve (Y642) has been replaced. | |
15 | Fill fuel low-pressure circuit | ||
16 | Start engine and perform an engine test run | Allow engine to run at a higher rotational speed. | |
If engine fails to start or only runs for a brief period. | |||
| |||
Fill fuel low-pressure circuit again. | |||
17 | Check area around quantity control valve (Y642) for leaktightness and stop engine | Visual inspection. |
001 589 75 21 00
Torque wrench
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