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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-448moderate severityPowertrain

Fuel Filter Service Required

on 2021 BMW i3 Range Extender · RWD

What this code means

The message indicates the fuel filter requires service or replacement, typically on diesel models. Raised by the engine/fuel management system monitoring filter condition and service intervals.

Symptoms

  • Warning message in cluster
  • Possible reduced engine performance
  • Rough running under load

Common causes

  • Clogged or saturated fuel filter
  • Water accumulation in diesel filter
  • Service interval reached
  • Contaminated fuel

Diagnostic steps

  1. Read fault memory with diagnostic tool
  2. Inspect fuel filter condition
  3. Drain water separator if diesel
  4. Replace fuel filter and reset service
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