Jedi2155
Model 3 has Arrived.
I get the sound every time I supercharge. It’s actually the same sound you get if you stomp on the floor in the rear seat. Seems Tesla designed the car with a hollow floor
It sounds to me like the thermal expansion of the thin metal of pack top or bottom
This actually seems like the most likely case. Elon did mention that they use to add insulation between the battery and the car but realized it was unnecessary. This hollow-less might be a result of that production design change.
The Absurd Reason Why Tesla’s Model 3 Assembly Line Kept Getting Delayed
Musk gave the public an amusing peek into that hell on the company’s quarterly earnings call Wednesday. “We did go too far on the automation front and automated some pretty silly things,” he said. Musk proceeded to offer the following example, about a fiberglass mat that was designed to insulate noise from the battery pack:
We had these fiberglass mats on the top of the battery pack. They’re basically fluff. So we tried to automate the placement and bonding of fluff to the top of the battery pack. Which is ridiculous.
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Musk said he asked his team whether the fluff was really necessary. The company tested a car both with and without the fiberglass battery insulation and found “no change in the noise in the cabin.” They concluded that the part was unnecessary and did away with the flufferbot.