TT Quattro Coupe L4-1.8L Turbo (AMU) (2001)
To help determine if an air leak exists on vehicles with Electronic Throttle Control (Drive by Wire only):
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Check Measuring Value Block Display groups 032 (for 2.7L BiTurbo and 1.8L Turbo) and Display group 204 (Biturbo only) with the VAS 5051 or
VAS 5052 Diagnostic tool as follows:
For 2.7L BiTurbo and 1.8L Turbo
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From VAS 5051 Start-up screen, select "Vehicle self diagnosis".
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Select Diagnosis function "01-Engine electronics".
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Select Diagnosis function "04-Basic settings".