Warning light functions table

If the On Board Diagnostic (OBD) detects a malfunction in the system, it will be displayed by the warning lights when the ignition is switched on. Warning lights are located in the instrument cluster.

Instrument cluster without driver information display

The illustration shows ABS warning light -K47- (right arrow), warning light for brake system -K118- (center arrow, red symbol "brake system malfunction(" and the traction control indicator light -K86- (left arrow).

Fig 1: Identifying ABS Warning Indicator Light - Instrument Cluster Without Driver Information Display

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Courtesy of AUDI OF AMERICA, INC.

Instrument cluster with driver information display

Warning light for brake system -K118- is not installed for instrument clusters with driver information display. The red symbol "brake system malfunction" appears on the display.
If the brake system is not fully functional, but the ABS warning light -K47- and the brake system warning symbol do not come on, this means the malfunction must be sought in the conventional braking system (mechanical/hydraulic components).

Fig 2: Identifying ABS Warning Indicator Light - Instrument Cluster With Driver Information Display

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Courtesy of AUDI OF AMERICA, INC.

Fig 3: ABS With ESP Warning Light Problem Diagnostic Chart (1 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

Fig 4: ABS With ESP Warning Light Problem Diagnostic Chart (2 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

For electrical testing, see ELECTRICAL TESTING .

Fig 5: ABS With ESP Warning Light Problem Diagnostic Chart (3 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

For electrical testing, see ELECTRICAL TESTING .
To check DTC memory, see ESP DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING .
For read measuring value block display group 2, see READ MEASURING VALUE BLOCK: DISPLAY GROUP 2 .
To check zero position of steering angle sensor -G85-, see READ MEASURING VALUE BLOCK (FUNCTION 08) .
For read measuring value block display group 5, see READ MEASURING VALUE BLOCK: DISPLAY GROUP 5 .

Fig 6: ABS With ESP Warning Light Problem Diagnostic Chart (4 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

To check DTC memory, see ESP DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING .
To check basic setting, see ESP, CHECKING VIA ROAD TEST .
For electrical testing, see ELECTRICAL TESTING .

Fig 7: ABS With ESP Warning Light Problem Diagnostic Chart (5 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

To check DTC memory, see ESP DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING .
To check basic setting, see ESP, CHECKING VIA ROAD TEST .

Fig 8: ABS With ESP Warning Light Problem Diagnostic Chart (6 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

To check DTC memory, see ESP DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING .

Fig 9: ABS With ESP Warning Light Problem Diagnostic Chart (7 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

To check DTC memory, see ESP DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING .
For electrical testing, see ELECTRICAL TESTING .

Fig 10: ABS With ESP Warning Light Problem Diagnostic Chart (8 Of 8)

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Courtesy of AUDI OF AMERICA, INC.

For electrical testing, see ELECTRICAL TESTING .