CDI fuel supply, function - GF07.16-P-2006P
ENGINE 642 in MODEL 164.1 /8, 203.0 /2, 209.3 /4, 211.0 /2 /6, 219.3, 221.0 /1, 251.0 /1
ENGINE 642 in MODEL 463.3
ENGINE 642 in MODEL 461.3
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 circuits:
- Low pressure circuit
- High pressure circuit
The following components are involved in the fuel supply:
- 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).
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. In this way the required feed quantity to the high pressure pump elements is reduced.
| Component description for the high pressure pump | GF07.02-P-3010P | ||
| Component description for the rail | GF07.03-P-6110P | ||
| Component description for fuel injectors | Y76 | GF07.03-P-6120P | |
| Component description for the rail pressure sensor | B4/6 | GF07.04-P-6210P | |
| Component description for the quantity control valve | Y94 | GF07.05-P-6010P | |
| Component description for the pressure regulator valve | Y74 | GF07.05-P-6020P | |
| Component description for the 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 Model 461.3 B76 |
GF47.20-P-2105TU | |
| Component description for the 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 the 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 the 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 the fuel temperature sensor | B50 | GF47.50-P-2010P |