Remove/Install Left Fuel Rail With Injectors - AR07.03-P-1050MNP
Engine 177 in model 167
MODIFICATION NOTES
| 19.05.2022 | Work procedure adapted. |
| 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. Do not carry out any work on system when it is pressurized. | AS07.16-Z-0001-01A | |
| 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 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 | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | AH00.00-P-0015-01CW | ||
| General information on work on gasoline direct injection system | AH07.00-P-2000-01A | ||
| Remove | |||
| 1 | Remove left air filter housing. | AR09.10-P-1151MNP | |
| 2 | Remove bracket of purge valves. | AR47.30-P-1500MNP | |
| 3 | Remove left high-pressure line. | AR07.03-P-1001MNP | |
| Clean | |||
| 4 | Clean environment of service connection (4). | Assembly cleaner | *BR00.45-Z-1028-04A |
| 5 | Remove fuel line (3) from service connection (4). | Fig 2 | |
| Fig 5 | |||
| 6 | Remove left low-pressure line with service connection (4) and place with connected hose connection to one side. | AR07.03-P-1121MNP | |
| 7 | Remove engine lifting lug at the rear left (9). | AR01.20-P-5010-02MNP | |
| 8 | Disconnect engine wiring harness. | AR15.18-P-1000-07MNP | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| 9 | Remove sound proofings (2) at rail (7). | ||
| 10 | Remove bleed line (6) from cylinder head cover. | ||
| 11 | Remove screws (10). | Remove screw/bolts (10) alternately each by half a revolution. Start in center of the rail (7), and work outwards. Otherwise, damage to the rail (7) occurs. |
|
| 12 | Remove the left fuel pressure and temperature sensor (B42/2). | AR07.04-P-0201MNO | |
| 13 | Mark fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) relative to the corresponding cylinder. | When reusing fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). | |
| 14 | Pull fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) together with rail (7) out of the cylinder head and seal injector shaft bores with suitable stop plugs. | AR07.03-P-0004-03MM | |
| Fig 1 | |||
| Fig 4 | |||
| Check | |||
| 15 | Check fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) for external damage. | When reusing the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). If damage is present: ↓ Replace respective fuel injector for cylinders 5 to 8 (Y76/5 to Y76/8). |
|
| 16 | Check connection of the fuel line on the rail (7) for damage. | If the connection on the rail (7) is damaged ↓ replace rail (7). |
|
| 17 | Check left high-pressure line for damage. | AR07.03-P-1010-03MNA | |
Feeler Gauge |
|||
| Assembly cleaner If damage is present: ↓ replace left high-pressure line. |
*BR00.45-Z-1028-04A | ||
| AR07.03-P-1001MNP | |||
| Install | |||
| 18 | Read off injector injection quantity adjustment coding on the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) and note down. | When installing new fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). | |
| 19 | Clean fuel connections on the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). | For cleaning the fuel connections, hold downwards. Otherwise, the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) will fail. Install fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) immediately after removing the transport protective cap. Leaks can occur otherwise. |
|
| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| 20 | Install new sealing packages of the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) in the rail (7). | AR07.03-P-0004-02MM | |
| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| Fig 6 | |||
| 21 | Install new sealing rings (12, 13, 14) on the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). | AR07.03-P-0004-01MM | |
| Assembly cleaner | *BR00.45-Z-1028-04A | ||
| Fig 3 | |||
| Clean | |||
| 22 | Assign fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) to the respective cylinders and clean injector shaft holes. | When reusing, insert the fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) into the cylinders, in which they were previously installed. Engine damage can occur otherwise. |
|
| 23 | Attach fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) to the rail (7) and fasten with clips | On replacing rail (7). | |
| 24 | Remove stop plugs and insert rail (7) with fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8) into left cylinder head. | Fig 1 | |
| 25 | Install left fuel pressure and temperature sensor (B42/2). | AR07.04-P-0201MNO | |
| 26 | Tighten screws (10). | Screw in screw/bolts (10) alternately each by half a revolution. Start in center of the rail (7), and work outwards. Otherwise, damage to the rail (7) occurs. |
|
| *BA07.52-P-1001-01J | |||
| 27 | Connect engine wiring harness. | AR15.18-P-1000-07MNP | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| *BA15.10-P-1003-05F | |||
| *BA15.18-P-1003-01G | |||
| *BA15.18-P-1008-01G | |||
| 28 | Install bleed line (6) at cylinder head cover. | *BA01.20-P-1001-01J | |
| 29 | Install soundproofings (2) at rail (7). | ||
| 30 | Install rear left engine lifting lug (9). | AR01.20-P-5010-02MNP | |
| *BA01.30-P-1003-01N | |||
| 31 | Install left low-pressure line with service connection (4). | AR07.03-P-1121MNP | |
| 32 | Attach fuel line (3) to service connection (4). | *BA07.03-P-1006-01H | |
| Fig 2 | |||
| Fig 5 | |||
| 33 | Turn and tighten dust cap on the service connection (4). | *BA07.03-P-1005-01H | |
| 34 | Install left high-pressure line. | AR07.03-P-1001MNP | |
| 35 | Install bracket of purge valves. | AR47.30-P-1500MNP | |
| 36 | Install left air filter housing. | AR09.10-P-1151MNP | |
| 37 | Store injector injection quantity adjustment coding in motor control module (N3/10). | When replacing fuel injectors for cylinders 5 to 8 (Y76/5 to Y76/8). | |
| AD00.00-P-2000-06ME | |||
| Concluding tasks | |||
| 38 | Check high-pressure fuel circuit for leak tightness. | AR07.03-P-1010-04MM | |
| AD00.00-P-2000-06ME | |||
| 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 | |
| 39 | Perform engine test run. While doing so, check engine for proper operation and leak tightness | ||
| 40 | Install upper engine cover. | ||
| AP01.10-P-2405-01E |
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA01.20-P-1001-01J | Bolt, vent line to cylinder head cover/turbocharger | Nm | 9 |
CYLINDER HEAD
| Number | Designation | Engine 177 | ||
|---|---|---|---|---|
| BA01.30-P-1003-01N | Bolt, heat shield/rear lifting eye to cylinder head | M6 | Nm | 9 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA07.03-P-1005-01H | Dust protection cap to service connection | Nm | 1 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA07.03-P-1006-01H | Union nut, fuel hose to diagnostic socket/fuel line | Nm | 24 |
FUEL DISTRIBUTOR
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA07.52-P-1001-01J | Bolt, fuel distributor to cylinder head cover | Nm | 9 |
GROUND STRAP
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA15.10-P-1003-05F | Bolt, engine wiring harness ground to cylinder head cover | Nm | 9 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA15.18-P-1003-01G | Screw, cable duct to cylinder head cover/charge air cooler/heat shield, right | Nm | 9 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA15.18-P-1008-01G | Screw, engine wiring harness to charge air cooler holder | Nm | 8 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |