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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-31moderate severityPowertrain

Engine problem, increased emissions

on 2021 BMW i3 Range Extender · RWD

What this code means

The engine management system has detected a fault causing elevated emissions. Raised by the emission control / engine management system.

Symptoms

  • Check engine light
  • Increased emissions warning
  • Possible rough running

Common causes

  • Faulty oxygen sensor
  • Catalytic converter issue
  • Misfire condition
  • EGR or evap fault

Diagnostic steps

  1. Scan ECM for emission codes
  2. Check oxygen sensors
  3. Inspect catalytic converter efficiency
  4. Test EGR and evap systems
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