BMW Moisture Ingress / Compromised Enclosure Seal

BMW Wallbox is leaking water from the bottom or shows condensation inside the transparent areas

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Damaged or improperly seated housing gasket, Incorrect mounting orientation allowing water entry, Cracked housing or cable gland, High humidity and lack of ventilation

How to Fix / Troubleshooting

Safety first: If you suspect water inside the Wallbox, turn off the breaker immediately. Do not use the charger until it has been inspected.

  • Visual inspection: Look for cracks in the plastic housing, loose cable glands, or missing sealing plugs.
  • Check mounting: Ensure the Wallbox is mounted vertically and as specified in the BMW installation manual. Incorrect tilt can allow water to pool.
  • Drying: Do not open the unit yourself unless the manual explicitly allows it. Allow the exterior to dry and prevent further water exposure (e.g., fix gutter leaks).

Because moisture can compromise insulation and safety, a BMW-certified technician should open the unit, assess internal damage, replace any corroded components, and renew gaskets or the housing as needed.

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Repair Difficulty

Hard 4/5

Required Part

BMW Wallbox Housing and Cable Gland Seals
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