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Home >> Audi >> 1999 >> A6 Quattro >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Instruments - 2001 And Up) >> Instrument cluster >> Malfunction message "dEF" on trip odometer display

Malfunction message "dEF" on trip odometer display

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If the control module in the instrument cluster detects a malfunction in its permanent memory, the letters "dEF" will appear on the trip odometer display.