2017 AUDI A6

3.0L Supercharged V6FWDAUTOMATICgassupercharged
3 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
P0304high severityPowertrain

Cylinder 4 Misfire Detected

on 2017 Audi A6 3.0L Supercharged V6 · FWD

What this code means

Misfire detected in cylinder 4.

Symptoms

  • Check Engine Light
  • Rough idle
  • Vibration
  • Loss of power

Common causes

  • Worn spark plug #4
  • Faulty ignition coil #4
  • Faulty injector #4
  • Low compression cyl 4

Diagnostic steps

  1. Swap coil #4
  2. Inspect spark plug #4
  3. Test injector #4
  4. Check compression

Repair notes

Swap coil to diagnose.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2017 Audi A6 repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Audi A6 — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →