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System overview

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The following graphic shows the system overview of the knock control with the engine N55:

Fig 1: Knock Control With Engine N55 - Circuit Diagram
G09909935Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Digital engine electronics (DME)
2 Knock sensor (cylinders 1 through 3)
3 Knock sensor (cylinders 4 through 6)
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