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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-518high severityBody

Convertible Top Not Locked

on 2021 BMW i3 Range Extender · RWD

What this code means

The convertible top has not reached its fully locked position. Raised by the convertible top control module.

Symptoms

  • Top not locked warning
  • Wind noise while driving
  • Roof may not seal fully

Common causes

  • Incomplete roof cycle
  • Locking mechanism fault
  • Hydraulic pressure loss
  • Roof position sensor fault

Diagnostic steps

  1. Cycle roof fully open and closed
  2. Inspect locking mechanism
  3. Check hydraulic system pressure
  4. Scan module for lock sensor faults
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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