Remove/Install Low-Pressure Fuel Line - AR07.03-P-1120MRI
Engine 264 in Model 205, 253
MODIFICATION NOTES
| 25.02.2019 | "Remove purging switchover valve (Y58/1)" added. | Operation step 6 | |
| 09.04.2019 | Tightening torque of holder screws (2b) changed. | Operation step 4 | |
| 09.04.2019 | Loosening of the purging switchover valve (Y58/1) described more precisely. | Operation steps 6-8 |
| 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 | |
| Topical note | Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | |
| Topical note | 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/Install | |||
| 1 | Relieve fuel pressure using diagnostic system. | ||
To do so, select following menu items: ME-SFI [ME] control unit → Actuation → Actuate the fuel pump |
AD00.00-P-2000-04B | ||
| 2 | Remove charge-air distributor. | Do not install Engine cover until after the leak test. |
AR09.41-P-8683MRI |
| 3 | Remove fuel high-pressure pump shielding (2a). | Do not install Engine cover until after the leak test. |
AR07.02-P-1028MRI |
| 4 | Remove holder (2b). | Screw, rear Engine cover holder to cylinder head |
*BA01.10-P-1001-01F |
| 5 | Remove center and rear Engine compartment lining. | Only install Engine compartment lining after leak test. |
AR61.20-P-1105LW |
| 6 | Remove screw (3). | Screw, purge valve holder to crankcase |
*BA07.03-P-1005-01I |
| 7 | Loosen line bracket (4). | Dismantling tool |
Fig 1 |
| 8 | Remove purging switchover valve (Y58/1) from the crankcase and place to one side with connected lines. | Do not disconnect purge line (1b) from the purging switchover valve (Y58/1). |
|
| 9 | Remove fuel hose (2d) from low-pressure line (2c), collect escaping fuel using a suitable container, and seal openings with suitable stop plugs. | Install new fuel hose (2d). |
|
Record plug |
Fig 3 | ||
Pliers for click clamps |
Fig 4 | ||
| 10 | Remove screws (2e). | Screw, low-pressure line holder to cylinder head/crankcase/holder |
*BA07.03-P-1002-01I |
| 11 | Remove low-pressure line (2c) from fuel high-pressure pump and seal openings with suitable stop plugs. | Union nut, fuel line to high-pressure pump/fuel distributor |
*BA07.03-P-1001-01I |
Box wrench bit |
Fig 2 | ||
Record plug |
Fig 3 | ||
| Check | |||
| 12 | Check low-pressure line (2c). | AR07.03-P-1120-01MNE | |
| Assembly cleaner If damage is present, ↓ replace low-pressure line (2c). |
*BR00.45-Z-1028-04A | ||
| 13 | Install in the reverse order. | ||
| 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 o the hazard area. | AS49.00-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 i 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 | |
| 14 | Carry out Engine test run and check Engine for proper operation and leak tightness. | ||
| 15 | Install Engine compartment lining. | AR61.20-P-1105LW | |
| 16 | Install Engine cover. | AR01.10-P-2405MRI |
Engine COVER
| Number | Designation | Engine 264 | ||
|---|---|---|---|---|
| BA01.10-P-1001-01F | Screw, rear Engine cover holder to cylinder head | M6 | Nm | 8 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 264 | ||
|---|---|---|---|---|
| BA07.03-P-1001-01I | Union nut, fuel line to high-pressure pump/fuel distributor | Stage 1 | Nm | 15 |
| Stage 2 | ∠° | 75 | ||
| Stage 3 | ∠° | 25 | ||
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 264 | |
|---|---|---|---|
| BA07.03-P-1002-01I | Screw, low-pressure line holder to cylinder head/crankcase/holder | Nm | 8 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 264 | |
|---|---|---|---|
| BA07.03-P-1005-01I | Screw, purge valve holder to crankcase | Nm | 8 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |