Remove/Install Left Fuel Rail With Fuel Injectors - AR07.03-P-1050XGA
Engine 176 in model 463
as of model year 2019
| 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 contact with fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| 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. | AS00.00-Z-0005-01A | |
| 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. | AS00.00-Z-0002-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| General information on work on gasoline direct injection system | AH07.00-P-2000-01A | ||
| Remove | |||
| 1 | Remove high-pressure line on left | AR07.03-P-1001XGA | |
| 2 | Remove the low-pressure line with service connection from the left cylinder head cover, fuel high-pressure pump and fuel supply line and place to one side with a connected hose connection | AR07.03-P-1121XGA | |
| 3 | Remove the engine suspension lug (2) | ||
| 4 | Remove noise insulation (1) | ||
| 5 | Release and disconnect the electrical connector of the CAMTRONIC cylinder 8 intake actuator (Y49/17) | ||
| 6 | Release and disconnect the electrical connectors (8) of the fuel injectors of cylinders 5, 6, 8 (Y76/5, Y76/6, Y76/8) | ||
| 7 | Remove holders (10) between rail (6) and fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) | ||
| 8 | Mark fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) in relation to the respective cylinder | When reusing the fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8). | |
| 9 | Unscrew the screws (7) on the rail (6) | Unscrew the screws (7) alternately by half a revolution in each case. Start in center of rail (6) and work outwards. Rail (6) will otherwise be damaged. |
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| 10 | Remove rail (6) of fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) and seal openings with suitable stop plugs | Fig 3 | |
| 11 | Remove fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) from cylinder head and seal injector well bores with suitable stop plugs | AR07.03-P-0004-03MM | |
| Fig 1 | |||
| Fig 2 | |||
| 12 | Check fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) for external damage and replace if necessary | When reusing fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8). | |
| Install | |||
| 13 | Clean fuel connections on fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) | For cleaning the fuel connections, hold downwards. Otherwise, the fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) will fail. If the fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) are replaced, they must be installed immediately after the transport protection caps have been removed. Leaks can occur otherwise. |
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| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| 14 | Replace sealing package of fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) on rail (6) | AR07.03-P-0004-02MM | |
| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| Fig 4 | |||
| 15 | Replace sealing rings (11, 12) on fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) | ||
| 16 | Replace sealing rings (13) on fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) | AR07.03-P-0004-01MM | |
| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| Fig 5 | |||
| 17 | Install fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) in the rail (6) and attach with holders (10) | If reusing fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8), these must be inserted into the cylinder in which they were installed before. Engine damage will occur otherwise. |
|
| 18 | Read off and note down injector injection quantity adjustment coding on fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) | When replacing the fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8). | |
| 19 | Insert rail (6) with fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8) in left cylinder head | ||
| 20 | Tighten the screws (7) on the rail (6) | Screw in the screws (7) alternately by half a revolution in each case. Start in center of rail (6) and work outwards. Otherwise, damage to the rail (6) may occur. |
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| *BA07.52-P-1001-01J | |||
| 21 | Install the left pressure and temperature sensor (B42/2) in the rail (6) | When installing a new rail (6). | AR07.04-P-0201XGA |
| 22 | Connect the electrical connectors (8) to the fuel injectors of cylinders 5, 6, 8(Y76/5, Y76/6, Y76/8) until they lock | ||
| 23 | Connect the electrical connector of the CAMTRONIC cylinder 8 intake actuator (Y49/17) until it locks | ||
| 24 | Install noise insulation (1) | ||
| 25 | Install the engine suspension lug (2) | *BA01.30-P-1003-01N | |
| 26 | Attach the low-pressure line with service connection at the left cylinder head cover, fuel high-pressure pump, and fuel supply line | AR07.03-P-1121XGA | |
| 27 | Install high-pressure line on left | AR07.03-P-1001XGA | |
| 28 | Read out and erase fault memory | ||
| AD00.00-P-2000-04B | |||
| 29 | Store injector injection quantity adjustment coding in engine management control unit | When replacing the fuel injectors of cylinders 5 to 8 (Y76/5, Y76/6, Y76/7, Y76/8). | |
| AD00.00-P-2000-04B | |||
| 30 | Check fuel high-pressure circuit for leaktightness | AR07.03-P-1010-04MM | |
| AD00.00-P-2000-04B | |||
| 31 | Perform an engine test run, and check engine for functionality and leaktightness |
CYLINDER HEAD
| Number | Designation | Engine 176 | ||
|---|---|---|---|---|
| BA01.30-P-1003-01N | Bolt, heat shield/rear lifting eye to cylinder head | M6 | Nm | 9 |
FUEL DISTRIBUTOR
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA07.52-P-1001-01J | Bolt, fuel distributor to cylinder head cover | Nm | 9 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |