Mennekes Intermittent CP/PP Connection or Thermal Derating

Vehicle intermittently stops charging and then resumes without user interaction.

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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

Loose CP or PP contact in Type 2 socket, Damaged tethered cable, Temperature sensor triggering derating, Vibration causing intermittent contactor drop-out

How to Fix / Troubleshooting

Safety first: De-energize before internal inspection.

  • Check plug fit: Ensure the Type 2 plug fits snugly and locks properly. Excessive play can cause intermittent CP contact.
  • Inspect cable: Flex the tethered cable gently along its length while monitoring charging; if interruptions correlate, replace the cable.
  • Socket contacts: Inspect the CP and PP contacts in the Mennekes socket for wear or loss of spring tension. Replace the socket insert if necessary.
  • Temperature monitoring: Review logs (if available) for thermal derating events. Improve ventilation or reduce configured current if the unit is regularly overheating.
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Repair Difficulty

Medium 3/5

Required Part

Type 2 Socket Insert / Tethered Cable Assembly
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