P2304high severityPowertrain
Ignition Coil D Secondary Circuit
on 2010 Mini Cooper 1.6L I4 · FWD
What this code means
Fault in ignition coil D secondary circuit (typically cylinder 4).
Symptoms
- Cylinder 4 misfire
- Check engine light
- Engine shaking
Common causes
- Failed coil
- Spark plug fouled
- Carbon tracking
Diagnostic steps
- Coil swap test
- Plug inspection
- Check for oil in spark plug well
Repair notes
Replace coil. Check valve cover gasket if oil in plug well.
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Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1