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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 575 (Functional Descriptions - F25 - Cooling System, Engine Performance) >> Engine Performance - Functional Description >> Detection of engine speed variations >> Engine speed variations in the case of sooting

Engine speed variations in the case of sooting

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If the intake area is sooted, increasing engine speed variations occur as the engine speed increases.