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 MANUALSAUDI1999A6 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSON BOARD DIAGNOSTIC (OBD) - UP TO 2000
1999 Audi A6 Base
On Board Diagnostic (OBD) - Up To 2000
1999 Audi A6 BaseSECTION On Board Diagnostic (OBD) - Up To 2000
- Instrument cluster, On Board Diagnostic (OBD)
- Notes
- General information
- On Board Diagnostic (OBD), initiating program
- Check DTC Memory (scan tool function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (scan tool function 03)
- Erase DTC Memory (scan tool function 05)
- End Output (scan tool function 06)
- Code Control Module (scan tool function 07)
- Read Measuring Value Block (scan tool function 08)
- Adaptation (scan tool function 10)
- Instrument cluster
- Initiating "Adaptation" function 10
- Resetting Service Reminder Indicator (SRI) after a service
- Adapting fuel consumption indicator
- Adapting driver information display language version
- Adapting Service Reminder Indicator (SRI), oil change service interval (distance in km)
- Adapting Service Reminder Indicator (SRI), inspection service interval (distance in km)
- Adapting Service Reminder Indicator (SRI), inspection service interval (time in days)
- Adapting odometer display (kilometers, miles)
- Adapting Service Reminder Indicator (SRI), after replacing instrument cluster (distance remaining until next oil change service)
- Adapting Service Reminder Indicator (SRI), after replacing instrument cluster (distance remaining until next inspection service)
- Adapting Service Reminder Indicator (SRI), after replacing instrument cluster (time remaining until next inspection service)
- Adaptation of fuel gauge sender resistance range
- Replacement of instrument cluster, input values
- Resetting Service Reminder Indicator (SRI) after a service without using VAG1551/1552 ST
- Instrument cluster with maintenance interval extension (MIE), On Board Diagnostic (OBD)
- General information
- On Board Diagnostic (OBD), initiating program
- Safety Precautions
- Check DTC Memory
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode
- Erase DTC Memory
- End Output
- Code Control Module
- Measuring Value Block, reading
- Initiating "Read Measuring Value Block"
- Measuring value block 001
- Read Measuring Value Block 2
- Measuring value block 3
- Measuring value block 10
- Measuring value block 11
- Measuring value block 12
- Measuring value block 13
- Measuring value block 14
- Measuring value block 15
- Measuring value block 50
- Measuring value block 125
- Measuring value block 126
- Measuring value block 130
- Measuring value block 140
- Adaptation
- Notes
- Adaptation table:
- Initiating "Adaptation" function 10
- Resetting SRI after service
- Adaptation of fuel consumption display
- Language version of driver information display
- Odometer display
- Adaptation of auxiliary heater
- Adaptation of fuel gauge sender resistance range
- Adaptation of the engine speed threshold
- Distance driven since service
- Time since service
- Minimum mileage
- Maximum mileage
- Maximum time interval
- Adaptation of oil quality
- Adaptation of total consumption quantity
- Adaptation for powertrain data-BUS
- Adaptation for comfort system data-BUS
- Adaptation for information data-BUS
- Replacement of instrument cluster, input values
- Resetting Service Reminder Indicator (SRI) after a service without using VAG1551/1552 ST
- Data exchange between control modules, checking
- Cruise control system, On Board Diagnostic (OBD)
- Acoustic Parking System (APS), On Board Diagnostic
- Automatic vertical headlight aim control system (>m.y. 1999), On Board Diagnostic (OBD)
- Only for vehicles with Xenon headlights
- On Board Diagnostic (OBD), initiating
- Check DTC Memory (scan tool function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (scan tool function 03)
- Basic Setting
- Erase DTC Memory (scan tool function 05)
- End Output (scan tool function 06)
- Code Control Module (scan tool function 07)
- Read Measuring Value Block (scan tool function 08)
- List of display groups
- Automatic vertical headlight aim control (m.y. 2000 >), On Board Diagnostic (OBD)
- VAS 5051 vehicle diagnostic, measuring and information system or VAG1551 Scan Tool, connecting and selecting functions
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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.