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Home >> BMW >> 2015 >> 535i Standard Trans >> Repair and Diagnosis >> General Information >> OEM General Information >> Functional Description - F10 - Engine Performance >> Engine Performance - Functional Description >> Detection of engine speed variations >> Engine speed variations
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Engine speed variations

Fig 1: Engine Speed Variations Graph
G09908287Courtesy of BMW OF NORTH AMERICA, INC.
  1. Y axis engine speed
  2. Y axis actuator position feedback
  3. x-axis time
  4. Measured engine speed with excessive fluctuations indicating a sooted intake area.
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