Component Description For ME-SFI (ME) Control Unit - GF07.61-P-6000MNG
ENGINE 276.9 in MODEL 166 as of model year 2016
View of engine from the front top
Location
The ME-SFI [ME] control unit is located at the left side on the engine.
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
- Rpm control
- Alternator interface
- Lambda control
- Smooth running control
- Thermal management
- Torque coordination
- Deceleration fuel shutoff
- Knock control
- Camshaft adjustment
- Intake manifold switchover
- Engine limp-home mode
- European On-Board Diagnosis
- ECO start/stop function
- Exhaust treatment
- EGR (for code 920 (Gasoline direct injection with stratified charge))
- Electronic accelerator
- Capturing fueling gases (for code 494 (USA version))
- Purging
- Purge system with leak test (with CODE 494 (USA version))
Reading in of signals
Input factors are read in over the following connections:
- Direct line
- Drive-LIN (LIN C1)
- Drive train CAN (CAN C)
- Chassis CAN 1 (CAN E1)
- Drive train sensor CAN (CAN I) (for code 920 (Gasoline direct injection with stratified charge))
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
- Drive train CAN
- Chassis CAN 1
- Drive train sensor CAN (for code 920 (Gasoline direct injection with stratified charge))
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 components 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 | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Terminal 15 | - | - |
| Circuit 30 (fused) | - | - |
| Circuit 31 | - | - |
| Circuit 87M4 | - | - |
| Knock sensor 1 (A16/1) | - | - |
| Knock sensor 2 (A16/2) | - | - |
| Hot film MAF sensor (B2/5) | - | For code 920 (Gasoline direct injection with stratified charge) |
| Intake air temperature sensor (B2/5b1) | - | For code 920 (Gasoline direct injection with stratified charge) |
| Fuel tank pressure sensor (B4/3) | - | With CODE 494 (USA version) |
| Fuel pressure and temperature sensor (B4/25) | - | - |
| 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) | - | - |
| Temperature sensor upstream of the right NOx storage catalytic converter (B16) | - | For code 920 (Gasoline direct injection with stratified charge) |
| Temperature sensor upstream of left NOx storage catalytic converter (B16/1) | - | For code 920 (Gasoline direct injection with stratified charge) |
| Intake air temperature sensor (B17) | - | except code 920 (Gasoline direct injection with stratified charge) |
| Intake manifold intake air temperature sensor (B17/1) | - | - |
| Pressure sensor downstream of throttle valve (B28/7) | - | - |
| Accelerator pedal sensor (B37) | - | - |
| Crankshaft Hall sensor (B70) | - | - |
| - | Starter circuit 50 relay (F58kM) | - |
| Circuit relay87M (F58kN) | Circuit relay87M (F58kN) | - |
| Circuit 15 relay (F58kR) | - | - |
| 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) | - |
| - | Fan motor (M4/7) | - |
| - | 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 exhaust gas recirculation valve Hall sensor (Y27/11b1) | - | For code 920 (Gasoline direct injection with stratified charge) |
| - | Left exhaust gas recirculation valve rotating solenoid (Y27/11y1) | For code 920 (Gasoline direct injection with stratified charge) |
| Right exhaust gas recirculation valve Hall sensor (Y27/12b1) | - | For code 920 (Gasoline direct injection with stratified charge) |
| - | Right exhaust gas recirculation valve rotating solenoid (Y27/12y1) | For code 920 (Gasoline direct injection with stratified charge) |
| - | 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) | 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) | - |
| - | Intake manifold resonance flap switchover valve (Y77/2) | - |
| - | Intake manifold selector drum switchover valve (Y77/3) | - |
| - | Radiator shutters actuator (Y84) | |
| - | Quantity control valve (Y94) | - |
| - | Engine oil pump valve (Y130) | - |
Input parameters and initial parameters for the following components 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) | Initial parameters via the drive-LIN (LIN C1) | Supplemental information |
|---|---|---|
| Alternator (G2) | Alternator (G2) | - |
| Input factors via the drive train CAN (CAN C) | Initial parameter via the drive train CAN (CAN C) | Supplemental information |
|---|---|---|
| Fuel system control unit (N118) | Fuel system control unit (N118) | - |
| Fully integrated transmission control unit (Y3/8n4) | Fully integrated transmission control unit (Y3/8n4) | - |
| Input factors via chassis CAN 1 (CAN E1) | Initial parameters via chassis CAN 1 (CAN E1) | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | via chassis CAN 2 (CAN E2) and electronic ignition lock control unit (N73) |
| Supplemental Restraint System control unit (N2/10) | - | - |
| SAM control unit (N10) | - | via interior CAN (CAN B) and electronic ignition lock control unit (N73) |
| AAC control and operating unit (N22/7) | - | via interior CAN (CAN B) and electronic ignition lock control unit (N73) |
| Electronic Stability Program control unit (N30/4) | - | - |
| AIRmatic control unit (N51/3) (for code 489 (AIRmatic)) | - | - |
| Radar sensors control unit (N62/1) (for code 23P (Driving assistance package PLUS)) | - | Via chassis FlexRay (Flex E) and chassis gateway control unit (N93/7) |
| Left front door control unit (N69/1) | - | via interior CAN (CAN B) and electronic ignition lock control unit (N73) |
| Upper control panel control unit (N72/1) | - | over the battery sensor LINE (LINE B15) to the SAM control unit (N10) and via the interior CAN (CAN B) and electronic ignition lock control unit (N73) |
| Electronic ignition lock control unit (N73) | Electronic ignition lock control unit (N73) | - |
| Steering column tube module control unit (N80) | - | - |
| Chassis gateway control unit (N93/7) (with CODE 23P (Driving assistance package PLUS)) | - | - |
| Diagnostic connector (X11/4) | Diagnostic connector (X11/4) | via diagnostic CAN (CAN D) and the electronic ignition lock control unit (N73) |
| Input factors over drive train sensor CAN (CAN I) (with CODE 920 (Gasoline direct injection with stratified charge)) | Initial parameters over drive train sensor CAN (CAN I) (with CODE 920 (Gasoline direct injection with stratified charge)) | Supplemental information |
|---|---|---|
| Left NOx sensor control unit (N37/5) | Left NOx sensor control unit (N37/5) | For code 920 (Gasoline direct injection with stratified charge) |
| Right NOx sensor control unit (N37/6) | Right NOx sensor control unit (N37/6) | For code 920 (Gasoline direct injection with stratified charge) |
Body
The ME-SFI [ME] control unit housing is made out of diecast aluminum and the cover is made out corrosion-protected sheet steel. 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.
Ground connection
The ground connection "circuit 31" is made over a number of ground lines to the front right ground point for lamp unit (W2).
Power supply
The ME-SFI [ME] control unit is supplied with a voltage from "circuit 30 secured" and also for 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.
Information for partial function "no-load current shutoff" is documented in the function description "Engine OFF energy management function".
Variants
The variants of the engine management, for exampled country and exhaust variants, are activated with XD over the variant coding. Exchange of the ME-SFI [ME] control unit is not necessary.
| Wiring diagram for gasoline-DI control unit | N3/10, vehicle connector, engine-side, sheet 1 | PE07.08-P-2101-97NBD | |
| N3/10, vehicle connector, engine-side, sheet 2 | PE07.08-P-2101-97NBE | ||
| N3/10, vehicle connector, body-side | PE07.08-P-2101-97NBA |