P2301high severityPowertrain
Ignition Coil A Secondary Circuit
on 2007 Mercedes-Benz S65 AMG 6.0L V12 BiTurbo M275 · RWD
What this code means
Fault detected in the secondary winding circuit of ignition coil A (cylinder 1).
Symptoms
- Misfire
- Check engine light
- Poor performance
Common causes
- Failed ignition coil
- Cracked coil boot
- Spark plug gap too wide
Diagnostic steps
- Swap coil to different cylinder
- Check spark plug
- Inspect coil boot for carbon tracking
Repair notes
Replace ignition coil. Check spark plug condition.
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