Submitted by vgray20 on 05. Juli 2019
I've recently noticed that after an overnight charge to 100% there is a high-frequency noise coming from an area beneath the "frunk". It sounds like it might be coming from a small motor(pump?). The sound is not coming from the charging process since it occurs many hours after charging is finished. It does go away sometime later.
Normally, I charge to about 80% but switch to 100% for a trip of 170-190 miles that I take every couple of weeks. I don't recall hearing the sound when charging to 80%, but I do always charge to 100% in the garage to prepare for the return trip home. At home the car is in a carport and I may have missed the sound when doing a normal 80% charge.
I first started noticing it when I charged inside a very quiet garage.
I have a 2015 85kw Model S with about 77k miles