A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
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Select function "08 - Read Measuring Value Block".
Indication on display of Vehicle Diagnosis, Testing and Information System (VAS 5051A):
‹› Display field - 1 - indicates request to input display group.
‹› Display field - 2 - shows input keyboard.
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Enter the desired display group number "014" in display field - 2 - via the keyboard. Refer to => [ Display Group Overview ] See: Heating and Air
Conditioning/Testing and Inspection/Scan Tool Testing and Procedures/Display Group Overview.
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Press the Q button to confirm the entry.
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Read indications shown in display fields "3" and " 4".
‹› Display field "4" shows the operating condition of the A/C system (fresh air or recirculation mode) and display field "3" shows the signal
condition of the air quality sensor (G238). Explanation of possible displays. Refer to => [ Display Group 014 ] See: Heating and Air
Conditioning/Testing and Inspection/Scan Tool Testing and Procedures/Measured Value Blocks for Display Groups 011 Through 019 and => [
Display Group 014 ] See: Heating and Air Conditioning/Testing and Inspection/Scan Tool Testing and Procedures/Measured Value Blocks for
Display Groups 011 Through 019.
Target value in display field "4"
‹› "00" (no request for "recirculation mode" present, A/C system in the fresh air mode)
Or
‹› "60" ("partial recirculation mode", fresh air and back pressure flap open)
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Place spray head - A - of the test gas bottle over the air inlet of air quality sensor (G238) - B - (in version "1" of the air quality sensor (G238)).