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2000 BMW 525I
2.5L I6 M54•RWD•AUTOMATIC•gas•M54B25
1 active safety recall on this vehicle — view recalls
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Repairs0Labor496Torque2182Fluid8DTC1244Battery1Maintenance0Recalls1
P1349high severityPowertrain

Misfire Cylinder 5 With Fuel Cut-Off

on 2000 BMW 525i 2.5L I6 M54 · RWD

What this code means

The DME detected a severe misfire on Cylinder 5 and has activated fuel cut-off for catalyst protection. This code appears on inline-6 and V8 BMW engines.

Symptoms

  • Check Engine Light flashing
  • Rough running
  • Loss of power
  • Vibration

Common causes

  • Faulty ignition coil Cylinder 5
  • Worn spark plug Cylinder 5
  • Injector failure
  • Low compression Cylinder 5
  • VANOS issue affecting cylinder 5 timing

Diagnostic steps

  1. Read misfire counters
  2. Swap coil from Cylinder 5
  3. Inspect spark plug
  4. Test injector
  5. Compression and leak-down test

Repair notes

Replace faulty ignition coil or spark plug on Cylinder 5.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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