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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-257high severityPowertrain

Engine Temperature Too High, Drive Moderately

on 2021 BMW i3 Range Extender · RWD

What this code means

The engine coolant temperature has exceeded normal limits and the driver is warned to drive gently. Raised by the engine control module via coolant temperature monitoring.

Symptoms

  • Temperature warning on dash
  • Reduced engine power
  • Coolant temp gauge in red zone

Common causes

  • Low coolant level
  • Failed coolant pump
  • Stuck thermostat
  • Cooling fan failure

Diagnostic steps

  1. Check coolant level and leaks
  2. Test coolant pump operation
  3. Verify thermostat function
  4. Inspect cooling fan and radiator
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