CDI fuel supply, function - GF07.16-P-2006P
ENGINES 642 in MODEL 203.0, 164.1/8, 221.1/0, 251.0, 203.2, 251.1 up to model year 2008/YoM 07
ENGINES 642.9 in MODEL 463.3
ENGINES 642 in MODEL 461.3
ENGINES 642 in MODEL 211.6, 219.3, 209.4/3, 211.2/0
The fuel supply must provide an adequate quantity of fuel under all operating conditions and at a sufficient pressure.
The fuel supply is subdivided into the 2 following circuits:
- Low pressure circuit
- High-pressure circuit
The following components are involved in the fuel supply process:
- Rail pressure sensor (B4/6)
- Fuel temperature sensor (B50)
- Fuel tank
- Fuel pump (M3)
- Fuel lines
- Fuel main filter
- Pressure regulator valve (Y74)
- Fuel injectors (Y76)
- Quantity control valve (Y94)
- High-pressure pump
- High-pressure lines
- Left rail
- Right rail
Apart from for model 461 and 463, the driver is informed of the fill level in the fuel tank via the fuel level indicator sensor in the left tank half (B4/1), the fuel level sensor, right tank half (B4/2), the fuel reserve warning lamp (A1e4) and the fuel level and reserve indicator (A1p2).
Only for model 461 and 463, the driver is informed of the fill level in the fuel tank via the fuel level sensor (B4), the fuel reserve warning lamp and the fuel level indicator in instrument cluster (A1p2).
In model 211.022 with OM 642.920, in model 164 and in model 251 with code (494) USA version, the fuel main filter is fitted a fuel filter water level sensor (B76) water level detection in the main fuel filter.
Tank protection
The fuel temperature sensor measures the temperature of the fuel delivered to the high-pressure pump. If the fuel temperature is high, the injection quantity and rail pressure are reduced. This reduces the required feed quantity to the high pressure pump elements.
| Component description for high pressure pump | GF07.02-P-3010P | |
| Component description for rail | GF07.03-P-6110P | |
| Component description for fuel injector | Y76 | GF07.03-P-6120P |
| Component description for rail pressure sensor | B4/6 | GF07.04-P-6210P |
| Component description for quantity control valve | Y94 | GF07.05-P-6010P |
| Pressure regulator valve, component description | Y74 | GF07.05-P-6020P |
| Component description for CDI fuel main filter | GF07.16-P-3115P | |
| Component description for fuel filter water level sensor | Engine 642.920 in model 211.022 with code (494) USA version Model 164.1/8, 251.0/1 with code (494) USA version Type 461.3 B76 |
GF47.20-P-2105TU |
| Component description for CDI control unit | Model 203, 209 N3/9 |
GF07.16-P-6000P |
| Model 211, 219 N3/9 |
GF07.16-P-6000T | |
| Model 164, 463 N3/9 |
GF07.16-P-6000GZ | |
| Model 221 N3/9 |
GF07.16-P-6000SX | |
| Model 251 N3/9 |
GF07.16-P-6000RT | |
| Model 461 N3/9 |
GF07.16-P-6000GX | |
| Component description for fuel tank | Model 203, 209 | GF47.10-P-2000P |
| Model 211, 219 | GF47.10-P-2000T | |
| Model 164, 463 | GF47.10-P-2000GZ | |
| Model 221 | GF47.10-P-2000SX | |
| Model 251 | GF47.10-P-2000RT | |
| Model 461 | GF47.10-P-2000GX | |
| Component description for fuel pump | M3 Model 461 |
GF47.20-P-2000GX |
| Component description for the fuel feed module | Model 203, 209 | GF47.20-P-4141P |
| Model 211, 219 | GF47.20-P-4141T | |
| Model 164, 463 | GF47.20-P-4141GZ | |
| Model 221 | GF47.20-P-4141SX | |
| Model 251 | GF47.20-P-4141RT | |
| Component description for fuel temperature sensor | B50 | GF47.50-P-2010P |