Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSAUDI1999A8 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSON BOARD DIAGNOSTIC (OBD) - RADIO, NAVIGATION, STEERING & TELEMATICSNAVIGATION SYSTEM III (NS-LOW) THROUGH 01.01, ON BOARD DIAGNOSTIC (OBD)DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, ERASING (FUNCTION 05)REQUIREMENTS

1999 Audi A8 Base

Diagnostic Trouble Code (DTC) Memory, erasing (function 05): Requirements

1999 Audi A8 BaseSECTION Requirements

DTC memory checked. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING (FUNCTION 02) .
All malfunctions repaired.

After successful DTC memory check:

Indicated on display

Fig 1: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (1 Of 6)

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Press buttons -0- and -5- to select "Erase DTC memory", function 05.

Indicated on display

Fig 2: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (2 Of 6)

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Press -Q- button to confirm input.

Indicated on display

Fig 3: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (3 Of 6)

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DTC memory is erased.

Press --> button.

Indicated on display

Fig 4: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (4 Of 6)

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Test sequence is faulty if this message is displayed.

Fig 5: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (5 Of 6)
Courtesy of AUDI OF AMERICA, INC.
Test sequence is faulty if this message is displayed.

Fig 6: Identifying Scan Tool Display - Erasing DTC Memory (Function 05) (6 Of 6)
Courtesy of AUDI OF AMERICA, INC.

Follow test sequence exactly: first check DTC memory, repair malfunction(s) if necessary, then erase.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.