Back to 1997 Audi A3

1997 AUDI A3

1.6L I4FWDAUTOMATICgas
Repairs0Labor472Torque2472Fluid6DTC638Battery0Maintenance0Recalls0
P2306high severityPowertrain

Ignition Coil F Secondary Circuit

on 1997 Audi A3 1.6L I4 · FWD

What this code means

Fault in ignition coil F secondary circuit (typically cylinder 6).

Symptoms

  • Cylinder 6 misfire
  • Check engine light

Common causes

  • Failed coil
  • Worn spark plug
  • Plug wire resistance high

Diagnostic steps

  1. Coil swap test
  2. Check plug
  3. Measure secondary resistance

Repair notes

Replace coil and plug.

Other Powertrain codes on this vehicle

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 →