W07.05-1006-09
1 | Electrical wiring harness | 5 | Check valve | 9 | Screw | ||
2 | Electrical connector | 6 | Flange | 10 | Sealing ring | ||
3 | Fuel return line (rail) | 7 | Low pressure fuel line | Y643 | Quantity control valve | ||
4 | Bracket | 8 | Sealing ring |
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 | ||
| Remove/install | ||
1 | Tilt cab into repair position | ||
2 | Drain off fuel at fuel filter module | ||
Cover for main fuel filter to fuel filter module | |||
3 | Remove compressor resonator | ||
4 | Expose electrical wiring harness | ||
5 | Disconnect electrical connection (2) at quantity control valve (Y643) | ||
6 | Remove fuel return line (3) on bracket (4) on rail and check valve (5) | Counterhold check valve (5). | |
Installation: Replace sealing rings on the banjo bolt. | |||
Union nut, fuel line return flow to rail | |||
Banjo bolt for rail return line to check valve | |||
Bracket, rail return line to charge air housing | |||
7 | Remove flange (6) at fuel system high pressure pump | Installation: Replace sealing rings(8). | |
Flange, low pressure fuel lines to fuel system high pressure pump | |||
8 | Bind low pressure fuel lines (7) with flange (6) to the side | ||
9 | Unscrew screw/bolts (9) | Bolt, quantity control valve to fuel system high pressure pump | |
Torque wrench | |||
10 | Remove the quantity control valve (Y643) | Remove quantity control valve (Y643) by hand out of the housing flange for fuel system high pressure pump 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 Star Diagnosis, start Xentry and perform a quick test | Only if the quantity control valve (Y643) has been replaced. | |
13 | Reset "Adaptation area for quantity control valve" | Only if the quantity control valve (Y643) has been replaced. | |
The process is completely menu-assisted under: | |||
14 | End use of Xentry and remove Star Diagnosis | Only if the quantity control valve (Y643) has been replaced. | |
15 | Fill low-pressure fuel circuit | Fill fuel low-pressure circuit on engine | |
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. | |
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 on engine | |||
17 | Check area of quantity control valve (Y643) for leaktightness and stop engine | Visual inspection. |
001 589 75 21 00
Torque wrench
Referenced documents
- ah0000n500001h Notes on avoiding damage through contamination and foreign objects
- ar0703g146003u Drain fuel at fuel filter module
- ar0716g1007u Fill fuel low-pressure circuit on engine
- ar1310g5840us Remove/install compressor resonator
- ar6080g0005b Overview - Tilt cab to repair position and tilt it back to normal position
- ar6080g0005b
- as0000z000501a 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.
- as4700z000101a 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.