Component Description For ME-SFI (ME) Control Unit - GF07.61-P-6000MMT
Engine 276.8 in model 217, 222
Engine top front view
Location
The ME-SFI [ME] control unit is located on top of the engine between the air filters.
Tasks
The ME-SFI [ME] control unit fulfills the following tasks:
- Controlling the engine basic functions
- Reading in of signals
- Evaluation of input factors
- Output of signals and actuation of components
The ME-SFI [ME] control unit also acts as an interface (Gateway) between the attached CAN bus systems.
Controlling the engine basic functions
- Ignition ON
- Start
- Ignition OFF
- Fuel supply
- Injection control
- Ignition system
- Synchronization of injection and firing order
- Start, post-start phase and warm-up enrichment
- Engine speed control
- Alternator interface
- Lambda control
- Smooth running control
- Heat management
- Torque coordination
- Inertia fuel shutoff
- Knock sensor system
- Camshaft adjustment
- Engine limp-home mode
- European On-Board Diagnosis
- ECO start/stop function
- Charging
- Exhaust treatment
- Electronic accelerator
- Purge control
- Purge system with leak test
Reading in of signals
Input factors are read in over the following connections:
- Direct line
- Drive-LIN (LIN C1)
- Engine CAN (CAN C)
- Drive train CAN (CAN C1)
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the affected components are then actuated.
Output of signals and actuation of components
Initial parameter are output over the following connections:
- Direct line
- Drive train LIN
- Engine CAN
- Drive train CAN
The electronic ignition lock control unit (N73) is the central interface (Gateway) for exchanging the function-relevant data of the control units that are connected to the various CAN bus systems.
Input factors and initial parameters for the following assembly parts are read in or output over direct lines by the ME-SFI [ME] control unit and are needed by the engine management:
| Input factors over a direct line from | Output factors over a direct line to | Supplemental information |
|---|---|---|
| Terminal 15 | - | - |
| Circuit 30 (fused) | - | - |
| Circuit 31 | - | - |
| Circuit 87M4 | - | - |
| Knock sensor 1 (A16/1) | - | - |
| Knock sensor 2 (A16/2) | - | - |
| Fuel tank diagnostic module (A101) | Fuel tank diagnostic module (A101) | With code 494 (USA version) from model year 2016 |
| Fuel tank pressure sensor (B4/3) | - | Model 217, 222 (except 222.163) up to model year 2016 with code 494 (USA version) |
| Purging pressure sensor (B4/4) | - | With CODE 494 (USA version) |
| Fuel pressure and temperature sensor (B4/25) | - | - |
| Fuel tank pressure sensor 1 (B4/48) | - | Model 222.163/173 from model year 2016 with code 494 (USA version) |
| Fuel tank pressure sensor 2 (B4/49) | - | Model 222.163/173 from model year 2016 with code 494 (USA version) |
| Left intake camshaft Hall sensor (B6/4) | - | - |
| Right intake camshaft Hall sensor (B6/5) | - | - |
| Left exhaust camshaft Hall sensor (B6/6) | - | - |
| Right exhaust camshaft Hall sensor (B6/7) | - | - |
| Coolant temperature sensor (B11/4) | - | - |
| Charge air temperature sensor (B17/8) | - | - |
| Pressure sensor downstream of air filter, left cylinder bank (B28/4) | - | - |
| Pressure sensor downstream of air filter, right cylinder bank (B28/5) | - | - |
| Pressure sensor upstream of throttle valve (B28/6) | - | - |
| Pressure sensor downstream of throttle valve (B28/7) | - | - |
| Accelerator pedal sensor (B37) | - | - |
| Crankshaft Hall sensor (B70) | - | - |
| Engine compartment circuit 15 relay (K40/8kG) | - | - |
| - | Starter circuit 50 relay (K40/8kH) | - |
| Circuit 87M relay (K40/8kN) | Circuit 87M relay (K40/8kN) | - |
| On-board electrical system battery (G1) | - | - |
| Left oxygen sensor element upstream of CAT (G3/3b1) | - | - |
| - | Left oxygen sensor heater upstream of CAT (G3/3r1) | - |
| Right oxygen sensor element upstream of CAT (G3/4b1) | - | - |
| - | Right oxygen sensor heater upstream of CAT (G3/4r1) | - |
| Left oxygen sensor element downstream of CAT (G3/5b1) | - | - |
| - | Left oxygen sensor heater downstream of CAT (G3/5r1) | - |
| Right oxygen sensor element downstream of CAT (G3/6b1) | - | - |
| - | Right oxygen sensor heater downstream of CAT (G3/6r1) | - |
| - | Actuator motor (M16/6m1), throttle valve | - |
| Actual value potentiometer 1 (M16/6r1), throttle valve | - | - |
| Actual value potentiometer 2 (M16/6r2), throttle valve | - | - |
| Supplemental Restraint System control unit (N2/10) | - | - |
| - | Fuel system control unit (N118) | - |
| - | Coolant thermostat heating element (R48) | - |
| Oil level check switch (S43) | - | - |
| - | Cylinder 1 ignition coil (T1/1) | - |
| - | Cylinder 2 ignition coil (T1/2) | - |
| - | Cylinder 3 ignition coil (T1/3) | - |
| - | Cylinder 4 ignition coil (T1/4) | - |
| - | Cylinder 5 ignition coil (T1/5) | - |
| - | Cylinder 6 ignition coil (T1/6) | - |
| - | Left intake camshaft solenoid (Y49/4) | - |
| - | Right intake camshaft solenoid (Y49/5) | - |
| - | Left exhaust camshaft solenoid (Y49/6) | - |
| - | Right exhaust camshaft solenoid (Y49/7) | - |
| - | Purging switchover valve (Y58/1) | - |
| - | Activated charcoal canister shutoff valve (Y58/4) | Model 217, 222 (except 222.163) up to model year 2016 with code 494 (USA version) |
| - | Fuel tank shutoff valve (Y58/5) | Model 222.163/173 from model year 2016 with code 494 (USA version) |
| - | Fuel vapor shutoff valve (Y75/1) | Model 222.163/173 from model year 2016 with code 494 (USA version) |
| - | Cylinder 1 fuel injector (Y76/1) | - |
| - | Cylinder 2 fuel injector (Y76/2) | - |
| - | Cylinder 3 fuel injector (Y76/3) | - |
| - | Cylinder 4 fuel injector (Y76/4) | - |
| - | Cylinder 5 fuel injector (Y76/5) | - |
| - | Cylinder 6 fuel injector (Y76/6) | - |
| - | Boost pressure control pressure transducer (Y77/1) | - |
| - | Exhaust flap switchover valve (Y93) | - |
| - | Quantity control valve (Y94) | |
| - | Left thrust circulating air switchover valve (Y101/1) | - |
| - | Right thrust circulating air switchover valve (Y101/2) | - |
| - | Left switchable engine mount (Y123) | - |
| - | Right switchable engine mount (Y123/1) | - |
| - | Engine oil pump valve (Y130) | - |
| Temperature sensor upstream of left gasoline particulate filter (B163/1) | - | Model 222 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
| Temperature sensor upstream of right gasoline particulate filter (B163/2) | - | Model 222 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
| Left gasoline particulate filter differential pressure sensor (B163/5) | - | Model 222 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
| Right gasoline particulate filter differential pressure sensor (B163/6) | - | Model 222 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
Input parameters and initial parameters for the following assembly parts and control units are transmitted or received by the ME-SFI [ME] or CDI control unit via the LIN or CAN and are needed by the engine management system:
| Input factors via the drive LIN (LIN C1) from | Output factors via the drive LIN (LIN C1) to | Supplemental information |
|---|---|---|
| Alternator (G2) | Alternator (G2) | - |
| Input factors over engine CAN (CAN C) from | Initial parameters over engine CAN (CAN C) to | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | Via user interface-CAN (CAN HMI), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Supplemental Restraint System control unit (N2/10) | - | Via user interface-CAN (CAN HMI), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Front SAM control unit (N10/6) | - | Over the interior CAN (CAN B), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Electronic Stability Program control unit (N30/4) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Active Body Control, control unit (N51/2) (with CODE 487 (Active Body Control (ABC))) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| AIRmatic control unit (N51/3) (except CODE 487 (Active Body Control (ABC))) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Radar sensors control unit (N62/1) (code P20 (Driving Assistance package Plus)) | - | Via suspension FlexRay (Flex E), Electronic Stability Program control unit (N30/4) and powertrain control unit (N127) |
| Left front door control unit (N69/1) | - | Over the interior CAN (CAN B), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Electronic ignition lock control unit (N73) | Electronic ignition lock control unit (N73) | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Powertrain control unit (N127) | Powertrain control unit (N127) | - |
| Diagnostics connection (X11/4) | Diagnostics connection (X11/4) | Via diagnostic CAN (CAN D), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Input factors over drive CAN (CAN C1) from | Initial parameters over drive CAN (CAN C1) to | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | Via user interface-CAN (CAN HMI), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Audio/COMAND control panel (A40/9) (with code 448 (Touchpad)) | - | Via the telematics CAN (CAN A), COMAND controller unit (A40/3) (up to model year 2018) or head unit (A26/17) (from model year 2018), user interface CAN (CAN HMI), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Climate control, control unit (N22/1) | - | Over the interior CAN (CAN B), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Electronic Stability Program control unit (N30/4) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Active Body Control, control unit (N51/2) (with CODE 487 (Active Body Control (ABC))) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| AIRmatic control unit (N51/3) (except CODE 487 (Active Body Control (ABC))) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Radar sensors control unit (N62/1) (code P20 (Driving Assistance package Plus)) | - | Via suspension FlexRay (Flex E), Electronic Stability Program control unit (N30/4) and powertrain control unit (N127) |
| Lower control panel (N72) (with code 446 (Touchpad only)) | - | Via LCP LIN (LIN A3), touchpad (A105), telematics CAN (CAN A), head unit (A26/17), user interface CAN (CAN HMI), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Steering column tube module control unit (N80) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Fuel system control unit (N118) | Fuel system control unit (N118) | - |
| Powertrain control unit (N127) | Powertrain control unit (N127) | - |
| Fully integrated transmission control unit (Y3/8n4) | Fully integrated transmission control unit (Y3/8n4) | - |
Structure
The ME-SFI [ME] control unit housing is made out of diecast aluminum and the cover is made out corrosion-protected steel sheet. The ME-SFI [ME] control unit is water and dust protected. The inside contains the 32-bit measuring and control electronics for the engine management.
Voltage supply
The ME-SFI [ME] control unit is supplied with voltage from "circuit 30 secured" and also with ignition ON from "circuit 87 M4". In the control voltage range, it has both short-circuit protection and reversed polarity protection. Power is supplied through several engaged parallel pins connected in parallel to relieve the electrical connections.
Variants
The engine management variants, such as country and exhaust variants, are activated with a vehicle diagnosis system via variant coding. Exchange of the ME-SFI [ME] control unit is not necessary.
| Wiring diagram for gasoline-DI control unit | Engine 276.8 in model 222 up to model year 2018Vehicle side | PE07.08-P-2101-97SEG | |
| Engine 276.8 in model 222 up to model year 2018 Engine side, sheet 1 | PE07.08-P-2101-97SEH | ||
| Engine 276.8 in model 222 up to model year 2018 Engine side, sheet 2 | PE07.08-P-2101-97SEI | ||
| Engine 276.8 in model 217, 222 as of model year 2018Vehicle side | PE07.08-P-2101-97SEQ | ||
| Engine 276.8 in model 217, 222 as of model year 2018 Engine side | PE07.08-P-2101-97SER |