Test sequence

NOTE: Charge Air Pressure Sensor -G31- and its wiring are monitored by engine control unit.

Connect vehicle diagnostic, test and information system VAS 5051 and select vehicle system "01 - Engine electronics". When doing this ignition must be on.
See VEHICLE DIAGNOSTIC, TESTING AND INFORMATION SYSTEM VAS 5051, CONNECTING AND SELECTING FUNCTIONS .
Check fault memory of engine control module.
See FAULT MEMORY, INTERROGATING AND ERASING .

If display shows a malfunction relating to Charge Air Pressure Sensor -G31-:
Open quick-release fasteners -1- and -2- and lift off engine cover panel (arrows).

Fig 1: Opening Quick-Release Fasteners -1- And -2- And Lifting Off Engine Cover Panel

Courtesy of AUDI OF AMERICA, INC.

Fig 2: Releasing Connector On Charge Air Pressure Sensor

Courtesy of AUDI OF AMERICA, INC.