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Home >> BMW >> 2009 >> 528xi Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2259 (Self Diagnosis - Theory & Operation (N54)) >> 1.6 Fuel System Monitoring >> 1.6.3 Diagnosis of Injector Aging >> 1.6.3.1 Monitoring function

1.6.3.1 Monitoring function

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A small proportion of the short term fuel deviation is used for diagnostic injector aging and is stored as injector adaptation value in a separate map. The values of the separate map will be renewed every time the mileage achieves 497 miles.

A fault is stored if the injector adaptation exceeds a calibratible minimum or maximum threshold.

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