Shown on engine 471.9 |
1 | Rail |
2 | Electrical connector |
B622 | Rail pressure sensor |
G07.04-3112-11
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. | |
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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Clean engine in the area of the rail pressure sensor (B622) | ||
2 | Disconnect electrical connection (2) | ||
3 | Remove rail pressure sensor (B622) from rail (1) | Counterhold rail (1) at front on flange with an open end wrench. | |
Engine 470.9, Engine 471.9, Engine 473.9Rail pressure sensor at rail | |||
Open end wrench attachment, 27_mm | |||
Torque wrench | |||
4 | Install in the reverse order | ||
5 | 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. | |||
6 | Check the area around the rail pressure sensor (B622) for leaktightness | Visual inspection. | |
7 | Turn off engine |
001 589 67 21 00
Torque wrench
000 589 10 99 22
Open end wrench attachment, 27_mm
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