CLK 550 (209.372) V8-5.5L (273.967) (2008)
Engine Control Module: Description and Operation
GF07.61-P-6000V ME-SFI [ME] Control Unit, Component Description
GF07.61-P-6000V ME-SFI [ME] Control Unit, Component Description
Location
The ME 9.7 control unit is located on the intake manifold supporting the engine.
Task
Controls in line with the input signals the functions of:
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Ignition system/fuel injection system
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Electronic accelerator/cruise control/idle speed control
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Diagnosis/fault storage
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Drive authorization system/immobilizer
Design
Connection is achieved on the engine-side and on-board via two couplings interlocked via slide valves. Cooling fins on the upper side provide the
necessary rejection of heat. Vibrations are suppressed by rubber brackets.
Function
Control of fuel injection system
The ME control unit actuates the fuel injection valves separately corresponding to the firing order (sequentially) according to the input signals and the
performance maps stored in the ME control unit. The ME-SFI control unit calculates the opening times (injection times) of the fuel injection valves.
Control of ignition system
The ME-SFI [ME] control unit actuates the ignition system according to the input signals and performance maps stored in the ME-SFI [ME] control unit.
The ME-SFI control unit calculates the ignition angle values and controls the anti-knock control (AKC).
Control of idle speed control
The throttle valve actuator is actuated on the basis of the input signals and the performance maps stored in the ME control unit.
Control of cruise control
The ME control unit operates the throttle valve actuator for the cruise control function on the basis of the input signals and the position of the cruise