p0302
Moderate
Mercedes-Benz · SUVs
Cylinder 2 Misfire Detected
Quick Answer
Error code P0302 on your Mercedes-Benz SUVs means: Cylinder 2 Misfire Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
X243X247X254V167X167AMG GLB35 4MATIC 2024AMG GLC43 4MATIC 2024AMG GLC63 S 2024AMG GLE53 4MATIC+ 2024AMG GLE63 S 2024AMG GLS63 2024EQB 250+ 2024EQB 300 4MATIC 2024EQB 350 4MATIC 2024GLB250 2024GLB250 4MATIC 2024GLC300 2024GLC300 4MATIC 2024GLE350 4MATIC 2024GLE450 4MATIC 2024GLS450 4MATIC 2024GLS580 4MATIC 2024Maybach GLS600 2024
Likely Causes
How to Fix It
1
Swap the ignition coil from cylinder 2 with an adjacent cylinder and monitor if misfire follows
2
Replace the spark plug on cylinder 2 and check for fouling pattern
3
Test the fuel injector on cylinder 2 for proper spray pattern and flow rate
4
Perform a compression and leak-down test on cylinder 2
5
Inspect the intake manifold gasket area near cylinder 2 for vacuum leaks
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Ignition coil pack
Spark plug
Fuel injector
Intake manifold gasket
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