S 550 (221.171) V8-5.5L (273.961) (2007)
Adaptive accelerator pedal
The ME-SFI [ME] control unit evaluates how the accelerator pedal is being actuated and switches between characteristic curves. After a 50% pedal
travel, about 80% of the engine load is released for a sporty driver and 40% of the engine load is released for a quiet driver.
There is no further difference felt above a pedal travel of about 90%.
If, for example, the characteristic curve for a quiet driver is active after a long drive on the freeway then the accelerator pedal must be pressed down
unusually hard to obtain a higher acceleration level.
Additional functions of the electronic accelerator pedal:
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Idle speed control
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Cruise control (CC [TPM])
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Torque interface
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Emergency running
If the brake pedal is operated, this always means idle speed input.