Legend of electrical function schematic for common rail diesel injection (CDI), driving mode - PE07.16-P-2755-60MAB
Model 164.1 with ENGINE 642.8 with CODE (U42) BLUETEC diesel exhaust gas cleaning (SCR) with AdBlue/DEF as of model year. 09/AEJ 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/AEJ 08
| Code | Designation | Coordinates |
|---|---|---|
| A1 | Instrument cluster | 28B |
| A8/1 | Transmitter key | 31J |
| B2/6 | Left hot film MAF sensor | 2J |
| B2/6b1 | Intake air temperature sensor | 12L |
| B2/7 | Right hot film MAF sensor | 3J |
| B2/7b1 | Intake air temperature sensor | 12L |
| B4/6 | Rail pressure sensor | 4C |
| B5/1 | Charge pressure sensor | 8B |
| B11/4 | Coolant temperature sensor | 8K |
| B16/14 | Exhaust gas recirculation temperature sensor | 2G |
| B16/15 | Temperature sensor upstream of SCR catalytic converter | 5B |
| B17/8 | Charge air temperature sensor | 10B |
| B19/7 | Temperature sensor upstream of catalytic converter | 7B |
| B19/9 | Temperature sensor upstream of diesel particulate filter | 13K |
| B19/11 | Temperature sensor upstream of turbocharger | 11B |
| B28/5 | Pressure sensor downstream of air filter | 10L |
| B28/8 | Pressure differential sensor (DPF) | 14B |
| B37 | Accelerator pedal sensor | 9J |
| B50 | Fuel temperature sensor | 6K |
| B70 | Crankshaft Hall sensor | 7K |
| Code 581 | Convenience automatic air conditioning | 21J |
| G2 | Alternator | 13B |
| G3/2 | O2 sensor upstream of catalytic converter | 5J |
| N3/9 | CDI control unit | 9D |
| N14/3 | Glow time output stage | 3E |
| N22 | AAC [KLA] control and operating unit | 23J |
| N22/7 | Comfort AAC [KLA] control and operating unit | 23K |
| N37/7 | NOx control unit downstream of diesel particulate filter | 17C |
| N37/7b1 | NOx sensor downstream of diesel particulate filter | 15C |
| N37/8 | NOx control unit downstream of SCR catalytic converter | 21C |
| N37/8b1 | NOx sensor downstream of SCR catalytic converter | 19C |
| N47-5 | ESP control unit | 31A |
| N73 | EIS [EZS] control unit | 31H |
| N93 | Central gateway control unit | 18G |
| N118/5 | AdBlue® control unit | 24B |
| R9 | Glow plugs | 1F |
| Y3/8n4 | Fully integrated transmission control (VGS) control unit | 26J |
| Y74 | Pressure control valve | 9B |
| Y76 | Fuel injectors | 2C |
| Y94 | Quantity control valve | 3E |
| CAN B | Interior CAN | 23H |
| CAN C | Engine compartment CAN | 14F |
| CAN C | Engine compartment CAN | 14G |
| CAN C | Engine compartment CAN | 15H |
| CAN C | Engine compartment CAN | 20F |
| CAN C | Engine compartment CAN | 20G |
| CAN C | Engine compartment CAN | 26F |
| CAN C | Engine compartment CAN | 26G |
| CAN I | Drive train sensor CAN | 14E |
| CAN I | Drive train sensor CAN | 20E |
| LIN C1 | Drive train LIN | 5F |
| LIN C1 | Drive train LIN | 11C |
| 1 | ESP control unit, request | 12E |
| 2 | Air conditioning, status | 12G |
| 2 | Air conditioning, status | 19G |
| 3 | Temperature sensor upstream of SCR catalytic converter, signal | 7D |
| 4 | Glow, request | 4E |
| 5 | Glow plugs, actuation | 2E |
| 6 | Transmission control, request | 12F |
| 7 | Alternator, request | 12B |
| 8 | Circuit 50, status | 31H |
| 9 | O2 sensor heater, actuation | 5J |
| 10 | Intake air temperature sensor, signal | 10H |
| 11 | Rail pressure sensor, signal | 6D |
| 12 | Differential pressure sensor (DPF), signal | 11D |
| 13 | Fuel temperature sensor, signal | 7H |
| 14 | Exhaust gas recirculation temperature sensor, signal | 5F |
| 15 | Temperature sensor upstream of diesel particulate filter, signal | 11H |
| 16 | Temperature sensor upstream of turbocharger, signal | 10C |
| 17 | Charge air temperature sensor, signal | 10D |
| 18 | Boost pressure sensor, signal | 8C |
| 19 | Coolant temperature sensor, signal | 8H |
| 20 | Crankshaft Hall sensor, signal | 7H |
| 21 | Hot film mass air flow sensor, signal | 5G |
| 22 | Hot film mass air flow sensor, signal | 6G |
| 23 | Pressure sensor downstream of air filter, signal | 9H |
| 24 | O2 sensor, signal | 6H |
| 25 | Accelerator pedal sensor, signal | 9H |
| 26 | Temperature sensor upstream of CAT, signal | 8C |
| 27 | Quantity control valve, actuation | 4D |
| 28 | Pressure regulator valve, actuation | 10C |
| 29 | NOx sensor, signal | 12D |
| 29 | NOx sensor, signal | 17C |
| 29 | NOx sensor, signal | 20C |
| 30 | Fuel injectors, actuation | 2C |
| 31 | Alternator, status | 11D |
| 32 | Instrument cluster, message | 29D |
| 33 | AdBlue® injection, request | 23D |
| 34 | AdBlue® fill level, message | 12D |
| 34 | AdBlue® fill level, message | 29D |