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 QUATTROREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 72 (ON BOARD DIAGNOSTIC (OBD) - RADIO, NAVIGATION, STEERING & TELEMATICS)
1999 Audi A8 Quattro
Section 72 (On Board Diagnostic (OBD) - Radio, Navigation, Steering & Telematics)
1999 Audi A8 QuattroSECTION Section 72 (On Board Diagnostic (OBD) - Radio, Navigation, Steering & Telematics)
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
- Radio, On Board Diagnostic (OBD)
- General information
- Radio On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Read Measuring Value Block, initiating
- Summary of display groups - through m.y. 2001
- Summary of display groups - from m.y. 2002
- Display Group Tables
- Notes
- Display group 001 - through m.y. 2001
- Display group 001 - from m.y. 2002
- Display group 002 - through m.y. 2001
- Display group 002 - from m.y. 2002
- Display group 003
- Display group 004 - through m.y. 2001
- Display group 004 - from m.y. 2002
- Display group 005 - through m.y. 2001
- Display group 005 - from m.y. 2002
- Display group 006 - through m.y. 2001
- Display group 007 - through m.y. 2001
- Adaptation (function 10)
- Navigation system III (NS-Low) through m.y. 2001, On Board Diagnostic (OBD)
- General information
- Navigation system III On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Read Measuring Value Block (function 08)
- Function status register
- Adaptation (function 10)
- Navigation system IV (BNS 4.0) from m.y. 2002, On Board Diagnostic (OBD)
- General information
- Navigation system IV On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Read Measuring Value Block (function 08)
- Function status register
- Adaptation (function 10)
- Notes
- Adaptation, initiating
- Adaptation table:
- Tire circumference, adapting
- Impulse number/wheel rotation (GALA), checking
- Production diagnostic function (function status register), enabling/disabling
- Speaker connection, adapting
- Country selection, adapting
- Dynamic route guidance (where applicable), adapting
- Multi-function steering wheel, On Board Diagnostic (OBD)
- General information
- Multi-function steering wheel On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Telematics, On Board Diagnostic (OBD)
- General information
- Telematics On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) Table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Read Measuring Value Block, initiating
- Display group overview:
- Display group 001
- Display group 002
- Display group 003
- Display group 004
- Display group 005
- Display group 020
- Display group 021
- Display group 022
- Display group 023
- Display group 024
- Display group 025
- Display group 026
- Display group 027
- Display group 028
- Display group 029
- Display group 030
- Display group 078
- Display group 079
- Display group 080
- Display group 125
- Display group 126
- Adaptation (function 10)
- Notes
- Adaptation (function 10), initiating
- Adaptation table:
- Transport Mode, activating/deactivating
- Example: Deactivate Transport Mode
- Emergency (back-up) battery, switch on/off, reset time register
- Emergency (back-up) battery adaptation examples:
- Example: Switch off emergency (back-up) battery
- Example: Switch on emergency (back-up) battery
- Example: Reset emergency (back-up) battery time register
- VAS 5051 tester or VAG 1551/1552 Scan Tool (ST), connecting
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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.