P07.16-4410-09
Shown on model 177 |
1 | Electrical connectors | 4 | Clamping claw | Y76/2 | Cylinder 2 fuel injector | ||
2 | Leak oil pipes | 5 | Sealing ring | Y76/3 | Cylinder 3 fuel injector | ||
3 | Screw | Y76/1 | Cylinder 1 fuel injector | Y76/4 | Cylinder 4 fuel injector |
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. | |
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. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Notes on safety-relevant components | |||
Notes about Common-Rail components | |||
| Remove/install | ||
1 | Remove air intake pipe upstream of the air filter housing. | ||
2 | Remove upper engine cover. | ||
| |||
Installation: Only install upper engine cover after the leak test. | |||
3 | Remove leak oil lines (2) from the fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) and place to one side. | ||
4 | Release and disconnect electrical connectors (1) from fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4), unclip from the oil separator and low-pressure line of the fuel system on the engine side, and place to one side. | ||
5 | Remove direct Injection common rail injection lines from rail and from fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4). | ||
6 | Unscrew screws (3) and remove with clamping claws (4). | Installation: Replace screw/bolts (3). | |
Bolt, injector clamping claw to cylinder head | |||
7 | Mark fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) relative to the corresponding cylinders. | If the fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) continue to be used. | |
8 | Remove fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) and seal exposed openings with suitable stop plugs. | The stop plugs are available as a replacement part of the fuel injection system, see EPC group 07. Multiple use is not permissible. | |
Installation: Coat injector shafts of fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) with special grease. | |||
Special grease | |||
9 | Remove sealing rings (5) from injector wells. | Installation: Replace sealing rings (5). | |
10 | Clean fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4). | If the fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) continue to be used. | |
Cylinder brush | |||
11 | Clean injector wells. | Round brush | |
12 | Install in the reverse order. | ||
13 | Perform commissioning of CDI control unit (N3/9). | If one or several of the fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) were replaced. | |
| |||
Write the "injector quantity compensation code" for the respective fuel injectors for cylinders 1 to 4 (Y76/1 to Y76/4) in the CDI control unit (N3/9). | |||
| Check | ||
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 burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
14 | Perform an engine test run; when doing so, check the engine for proper operation and the fuel system for leaks. |
668 589 00 68 00
Cylinder brush
651 589 01 68 00
Round brush
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