Component description for ME-SFI (ME) control unit - GF07.61-P-6000MNA
ENGINE 177.9 in MODEL 205
Front view of engine
Location
The ME-SFI [ME] control unit is located on the right front side of 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
- Engine limp-home mode
- European On-Board Diagnosis
- ECO start/stop function
- Exhaust treatment
- Charging
- 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 and initial parameters are read in and output via 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 components are read in or output over direct lines by the ME-SFI [ME] control unit and are required by the engine management system:
| Input factors over a direct line | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Terminal 15 | - | - |
| Circuit 30 (fused) | - | - |
| Circuit 31 | - | - |
| Circuit 87 (M4) | - | - |
| Knock sensor 1 (A16/1) | - | - |
| Knock sensor 2 (A16/2) | - | - |
| Knock sensor 3 (A16/3) | - | - |
| Knock sensor 4 (A16/4) | - | - |
| Engine oil temperature sensor (B1) | - | - |
| Fuel tank pressure sensor (B4/3) | - | With CODE 494 (USA version) |
| Purging pressure sensor (B4/4) | - | - |
| 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) | - | - |
| Left charge air temperature sensor (B17/14) | - | - |
| Right charge air temperature sensor (B17/15) | - | - |
| 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 left throttle valve (B28/20) | - | - |
| Pressure sensor upstream of right throttle valve (B28/21) | - | - |
| Pressure sensor downstream of left throttle valve (B28/22) | - | - |
| Pressure sensor downstream of right throttle valve (B28/23) | - | - |
| Accelerator pedal sensor (B37) | - | - |
| Oil sensor (oil level, temperature and quality) (B40) | - | - |
| Right fuel pressure and temperature sensor (B42/1) | - | - |
| Left fuel pressure and temperature sensor (B42/2) | - | - |
| Crankshaft Hall sensor (B70) | - | - |
| 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) | - |
| Engine compartment circuit 15 relay (K40/8kG) | - | - |
| - | Starter circuit 50 relay (K40/8kH) | - |
| - | Circuit 87M relay (K40/8kN) | - |
| - | Left exhaust flap actuator motor (M16/53) | For code U78 (AMG Sport exhaust system) |
| - | Right exhaust flap actuator motor (M16/54) | For code U78 (AMG Sport exhaust system) |
| - | Exhaust flap center actuator motor (M16/55) | For code U78 (AMG Sport exhaust system) |
| - | Left and right throttle valve actuator motor (M16/60m1 and M16/61m1) | - |
| Left and right throttle valve actual value potentiometer 1 (M16/60r1 and M16/61r1) | - | - |
| Left and right throttle valve actual value potentiometer 2 (M16/60r2 and M16/61r2) | - | - |
| Supplemental Restraint System control unit (N2/10) | - | - |
| - | Fuel system control unit (N118) | - |
| - | Coolant thermostat heating element (R48) | - |
| - | Cylinder 1 ignition coil (T4t1) | - |
| - | Cylinder 2 ignition coil (T4t2) | - |
| - | Cylinder 3 ignition coil (T4/1t3) | - |
| - | Cylinder 4 ignition coil (T4/1t4) | - |
| - | Cylinder 5 ignition coil (T4/2t5) | - |
| - | Cylinder 6 ignition coil (T4/2t6) | - |
| - | Cylinder 7 ignition coil (T4/3t7) | - |
| - | Cylinder 8 ignition coil (T4/3t8) | - |
| - | Heating system shutoff valve (Y16/2) | - |
| - | Left intake camshaft solenoid (Y49/4) | - |
| - | Right intake camshaft solenoid (Y49/5) | - |
| - | Left exhaust camshaft solenoid (Y49/6) | - |
| - | Right exhaust camshaft solenoid (Y49/7) | - |
| - | Left purging switchover valve (Y58/11) | - |
| - | Right purging switchover valve (Y58/12) | - |
| - | 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) | - |
| - | Cylinder 7 fuel injector (Y76/7) | - |
| - | Cylinder 8 fuel injector (Y76/8) | - |
| - | Boost pressure control pressure transducer (Y77/1) | - |
| - | Left quantity control valve (Y94/1) | |
| - | Right quantity control valve (Y94/2) | - |
| - | Left thrust circulating air switchover valve (Y101/1) | - |
| - | Right thrust circulating air switchover valve (Y101/2) | - |
| - | 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) | - | - |
| Input factors over engine CAN (CAN C) | Initial parameters via engine CAN (CAN C) | 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) | Audio/COMAND control panel (A40/9) | Via telematics CAN (CAN A), head unit (A26/17), user interface CAN (CAN HMI), electronic ignition lock control unit (N73), chassis 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) |
| Radar sensors control unit (N62/1) (for code 23P (Driving Assist package)) | - | 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) | - |
| Diagnostic connector (X11/4) | Diagnostic connector (X11/4) | Via diagnostic CAN (CAN D), electronic ignition lock control unit (N73), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Input factors via drive train CAN (CAN C1) | Initial parameters via drive train CAN (CAN C1) | 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) |
| Climate 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) |
| Active engine mount control unit (N3/42) (for code 466 (Active engine mount)) | Active engine mount control unit (N3/42) (for code 466 (Active engine mount)) | Via AMG CAN (CAN AMG) and AMG suspension control unit (N3/43) |
| AMG suspension control unit (N3/43) (for code 466 (Active engine mount) or code 467 (AMG rear axle electronic limited-slip differential)) | AMG suspension control unit (N3/43) (for code 466 (Active engine mount) or code 467 (AMG rear axle electronic limited-slip differential)) | - |
| Electronic Stability Program control unit (N30/4) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Adaptive damping system control unit (N51/5) (for code 488 (AMG RIDE CONTROL sports suspension) or for code 492 (AMG-Performance chassis)) | - | Via suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Radar sensors control unit (N62/1) (for code 23P (Driving Assist package)) | - | Via suspension FlexRay (Flex E), Electronic Stability Program control unit (N30/4) 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) | - |
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 "circuit 31" ground connection is made via several ground lines to the left major assembly compartment electronics ground point (W16/5).
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.
| ME-SFI [ME] control unit wiring diagram | N3/10 Engine connector | PE07.08-P-2101-97FBD | |
| N3/10 Vehicle connector | PE07.08-P-2101-97FBC |