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CC-ID-492low severityPowertrain

AdBlue Reserve Low

on 2024 Mini Cooper SE Electric · FWD

What this code means

The DEF (AdBlue) level has dropped into the reserve range and requires refilling soon. Raised by the SCR emissions control system on diesel vehicles.

Symptoms

  • AdBlue low warning on dashboard
  • Countdown of remaining miles displayed
  • Reminder appears at each start

Common causes

  • Low AdBlue fluid level
  • Normal fluid consumption over time
  • Skipped refill at service
  • Faulty AdBlue level sensor

Diagnostic steps

  1. Check AdBlue tank level
  2. Refill with approved AdBlue fluid
  3. Clear warning after refill
  4. Verify level sensor reading

Other Powertrain codes on this vehicle

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