N54 N55 Water Pump Replacement

BMW N54/N55 E-Series Electric Water Pump Replacement DIY (Video)

Jake Mayock

Meet Jake

Jake currently owns two N54 powered BMW’s – an E60 535i and E82 135i. Jake has 10 years of experience maintaining, repairing, and upgrading his BMW’s. The 135i features a single turbo Precision 6266 conversion capable of 700+whp; Jake completed the entire project on his own. With over 200 automotive articles published, Jake brings a balance of writing skill, hands-on BMW experience, and technical knowledge to the table.

Signs of N55 Water Pump Failure:

  • Engine overheating significantly – usually rapid over-heating once the pump fails
  • Cooling Fan running full speed (noisy)
  • Coolant boiling out of coolant cap

N55 CEL Codes for Failing Water Pump:

  • 2E81, 2E82, 2E83, 2E84, 2E85
  • 377A
  • Remember to check fuses

Replacement Part

Water Pump for E-series N55 – $389

Water Pump for F-Series N55 – $449

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