Passat L4-1984cc 2.0L DOHC (9A) (1990)
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^ display will appear as shown
^ press buttons 0 and 1 to select "ENGINE ELECTRONICS"
^ display will appear as shown
^ press Q button to enter input
^ display will appear as shown
^ press Q button to enter input
^ display will appear as shown
^ push right arrow button
^ display will appear as shown
^ push button 0 and 4 to select Function 04 "System in basic adjustment"
^ display will appear as shown
^ press Q button to enter input
^ display will appear as shown
^ press 0 button two times
