Test requirements for operations with engine running

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No DTCs stored in DTC memory
Coolant temperature at least 80 °C
Electrical consumers switched off (coolant fan must not run during test)
A/C switched off

Connect vehicle diagnostic, testing and information system VAS 5051 or VAG1551 scan tool and select engine electronics control module by entering address word "01". See VEHICLE DIAGNOSTIC, TESTING AND INFORMATION SYSTEM VAS5051 OR VAG1551 SCAN TOOL, CONNECTING AND SELECTING FUNCTIONS . Engine must be idling.
Check and erase DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . There should be no malfunctions stored in DTC memory. (If necessary, repair malfunctions, erase DTC memory and switch off engine. Start engine again, road test vehicle and check DTC memory again).
Continue to run engine at idle.

Indicated on display

Fig 1: VAG 1551 Scan Tool Display - Basic Setting Mode (1 Of 5)

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Press buttons -0- and -4- to select function "Basic Setting"

Indicated on display

Fig 2: VAG 1551 Scan Tool Display - Basic Setting Mode (2 Of 5)

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Confirm entry by pressing -Q- button.

Indicated on display

Fig 3: VAG 1551 Scan Tool Display - Basic Setting Mode (3 Of 5)

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NOTE: Display Group 000 is used here as an example to illustrate the procedure.

Press buttons -0- three times.

(000 is to select Display Group 000)

NOTE: When the display group is selected the EVAP valve is closed and the air conditioner compressor is switched off.

Indicated on display

Fig 4: VAG 1551 Scan Tool Display - Basic Setting Mode (4 Of 5)

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Confirm entry by pressing -Q- button.

Indicated on display

Fig 5: VAG 1551 Scan Tool Display - Basic Setting Mode (5 Of 5)

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Fig 6: Display Group 000 (Indicated Value Decimal) Chart

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¹⁾ Up-to-date specifications:

Allow engine to idle for a few minutes: Coolant temperature at least 80 °C.
NOTE:
- When the PRINT button is pressed the current display will be printed out.
- Press C button before selecting further display groups.
If readouts in all display fields match specifications, press right arrow button.

Indicated on display

Fig 7: VAG 1551 Scan Tool Display - Basic Setting Mode, End Output (1 Of 3)

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Press buttons -0- and -6- to select function "End Output".

Indicated on display

Fig 8: VAG 1551 Scan Tool Display - Basic Setting Mode, End Output (2 Of 3)

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Confirm with -Q- button.

Indicated on display

Fig 9: VAG 1551 Scan Tool Display - Basic Setting Mode, End Output (3 Of 3)

Courtesy of AUDI OF AMERICA, INC.