Legend of electrical function schematic for common rail diesel injection (CDI), charging/boost pressure control - PE09.40-P-2051-60MAB
Model 164.1 with ENGINE 642.8 with CODE (U42) BlueTEC diesel exhaust gas cleaning (SCR) with AdBlue/DEF as of model year. 09/YoM 08 model refinement package
Model 164.8 with ENGINE 642.8 with (U42) BLUETEC (SCR) diesel exhaust gas cleaning with AdBlue/DEF as of model year 09/YoM 08
| Code | Designation | Coordinates |
|---|---|---|
| B4/6 | Rail pressure sensor | 9C |
| B5/1 | Charge pressure sensor | 5K |
| B11/4 | Coolant temperature sensor | 9K |
| B17/8 | Charge air temperature sensor | 10D |
| B19/11 | Temperature sensor upstream of turbocharger | 10G |
| B28/5 | Pressure sensor downstream of air filter | 10F |
| B60 | Exhaust back pressure sensor | 7C |
| B70 | Crankshaft Hall sensor | 7J |
| N3/9 | CDI control unit | 7E |
| Y76y1 | Cylinder 1 fuel injector | 3E |
| Y76y2 | Fuel injector (2nd cylinder) | 3E |
| Y76y3 | Fuel injector (3rd cylinder) | 3E |
| Y76y4 | Fuel injector (4th cylinder) | 3F |
| Y76y5 | Cylinder 5 fuel injector | 3F |
| Y76y6 | Cylinder 6 fuel injector | 3F |
| Y77/1 | Charge pressure positioner | 5C |
| 1 | Rail pressure sensor, signal | 8D |
| 2 | Boost pressure sensor, signal | 6H |
| 3 | Coolant temperature sensor, signal | 8H |
| 4 | Temperature sensor upstream of turbocharger, signal | 9F |
| 5 | Pressure sensor downstream of air filter, signal | 9F |
| 6 | Exhaust back pressure sensor, signal | 7D |
| 7 | Crankshaft Hall sensor, signal | 7H |
| 8 | Charge air temperature sensor, signal | 9E |
| 9 | Fuel injectors, actuation | 4E |
| 10 | Boost pressure positioner, actuation | 6D |