Tesla Flood/Water/Moisture Ingress Repair Guide

If, you got BMS_a123, BMS_a151, or a BMS_a035 alerts on screen. It need to investigate and correct the low isolation.

In some cases, water/coolant can enter inside high voltage battery pack. Battery/Car safety system detect the contamination and shut down the system to avoid events.

Flood Ports

Guide to remove and replace Link

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Disclaimer: Tesla, Inc. was not involved in the creation of this document. Tesla did not provide us any info. Tesla did not edit, review or authorize us. We gather this information from Tesla official website and other resources.

Note: It is your responsibility to double check and confirm that the procedures/info mentioned in this blog are applicable to your specific car before performing them. Please contact us or our workshop partner to make sure/confirm. We will be happy to help you.