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2004-2006 AUDI A8
4.2L V8•AWD•AUTOMATIC•gas•BAS
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor488Torque2164Fluid10DTC1049Battery1Maintenance0Recalls3
P2302high severityPowertrain

Ignition Coil B Secondary Circuit

on 2004-2006 Audi A8 4.2L V8 · AWD

What this code means

Fault in ignition coil B secondary circuit (typically cylinder 2).

Symptoms

  • Cylinder 2 misfire
  • Check engine light
  • Rough idle

Common causes

  • Failed coil
  • Bad spark plug
  • Carbon tracking on boot

Diagnostic steps

  1. Swap coil to test
  2. Replace spark plug
  3. Inspect boot

Repair notes

Replace coil and/or spark plug.

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