2019 Audi A3 Quattro Premium Plus, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE

Electrical Testing

Step Procedure Result / Action to Take
1
  • CONNECT: Scan Tool.
  • IGNITION: ON.
  • CHECK: For stored or related DTCs.
-- Were any other DTCs stored?
-- YES: -- NO:
2Β 
  • Repair these DTCs first before performing any of the following steps.
  • GO TO: Proper Diagnostic procedure per the stored DTC. Refer to ENGINE DTC TABLES .
3Β  -- Does DTC return? -- YES: -- NO:
4Β 
  • Perform the diagnostic procedure for that DTC.
  • GO TO: Proper Diagnostic procedure per the stored DTC. Refer to ENGINE DTC TABLES .
5Β 
  • FAULT: Intermittent or a sporadic condition.
  • CHECK: Suspected components.
  • PERFORM: Visual Inspection of wiring and components.
  • CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
  • REPAIR: Faulty wiring or connector.
  • Perform a road test to verify the repair.
  • Generate readiness code. Refer to READINESS CODEΒ .
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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