F60 How does Active Sound Design work?
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Sport Mode does not in any way impact the timing of the engine, fuel delivery, etc. When activated, it tightens the steering, stiffens the suspension (if the car is equipped with Dynamic Damper Control), adjusts the transmission shift points (if the car is an auto), and enables the “pops and burbles” from the exhaust. Those occur because it is a direct injection engine, and it overfuels the cylinders to cool them when in Sport Mode. The pops and burbles are the burning off of the excess fuel.
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The electronic throttle pedal position vs throttle body opening is mapped differently for each of the 3 modes.
Sport - mapped to more aggressively open the throttle body relative to throttle pedal position.
Normal - nominal throttle pedal/throttle body mapping
Green - opens the throttle body less aggressively for better fuel consumption and that lazy feeling throttle response.
Sport - mapped to more aggressively open the throttle body relative to throttle pedal position.
Normal - nominal throttle pedal/throttle body mapping
Green - opens the throttle body less aggressively for better fuel consumption and that lazy feeling throttle response.
#16
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