Removing and installing fuel rail with injectors (ME-SFI) - AR07.03-P-1451E
ENGINE 119.981 /982 /985
Fig 1: Identifying Screws, O-Rings, Fuel Distributor, Fuel Return Line, Fuel Supply Line And Fuel Injection Valve
| Removal, installation | |||
| Fuel presents an explosion hazard , fuel vapors are toxic when inhaled or absorbed. Contact with fuel can cause skin and eye injury . | Fire, open lights and smoking prohibited. Fill and store fuel only in containers intended for this purpose and marked accordingly. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| 1 | Release fuel pressure in fuel distributor with service valve | See Diagnosis Manual, Engine, Volume 2, Index 3.1 | |
| Figure | |||
| Figure | |||
| 2 | Remove vacuum line for brake unit | ||
| 3 | Pull off hoses for crankcase ventilation | GF07.61-P-0001-05A | |
| 4 | Disconnect vacuum hose from diaphragm pressure regulator | ||
| 5 | Unscrew fuel supply (17/3) and return line (17/2) | ||
| Routing and mounting of fuel lines for model 210.072 E AMG | GF07.61-P-0001-09A | ||
| 6 | Disconnect connectors for injection valves (Y62) | ||
| 7 | Disconnect connector from engine control module (ME-SFI), (N3/10) and connector (arrows) | ||
| 8 | Remove left ignition coil cover | ||
| 9 | Expose wiring harness | For this purpose, disconnect all electrical connectors on lines leading to intake manifold over fuel distributor | |
| 10 | Unscrew screws (16) | ||
| 11 | Pull fuel distributor (17) out of intake manifold together with injection valves and thread wiring harness through | Cover holes for injection valves | |
| 12 | Replace O-rings (16/8) | ||
| Testing | |||
| 13 | Check fuel injection valves (Y62) | See Diagnosis Manual, Engine, Volume 2, Index 3.1 If necessary, after checking: ↓ |
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| Replace injection valves | AR07.03-P-6520E | ||
| 14 | Reinstall in opposite order |