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P0303 Fault on Smart Fortwo Diesel - Cylinder 3 Misfire Diagnosis

Model: SMART FORTWO DIESEL Fault Code: P0303 Posted: 2007-01-31 16:39

Hi everyone, I'm looking for help with a P0303 fault on my Smart Fortwo diesel model. The check engine light is illuminated, and after using an OBD2 scanner, the diagnostic result shows 'Cylinder 3 Misfire Detected'. I recently performed a DIY oil change and replaced the K&N air filter, but the issue persists. Can anyone provide insight into possible causes of cylinder misfires in this model? Thanks for any advice or suggestions on troubleshooting steps or common issues related to this fault code.

Related fault codes
P0303
Comments (1)
Anonymous 2007-01-31 17:37

The P0303 code could indicate an injector issue or low cylinder pressure. While I haven't worked on a Smart Fortwo diesel myself, it's worth checking for known common causes or technical service bulletins (TSBs). Consulting the dealership might be helpful to review warranty coverage and potential factory-related fixes.