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Pedestrian Noise like sound on 2018 Model 3

shiv987

Member
Sep 27, 2019
33
10
Alabama
Today tesla service came out to replace my spoiler and do some test for grinding noise from front end motors. When he left, I got in the model 3 to reverse park into my driveway, I notice a loud flying saucer type noise from front end when backing into parking spot at home. it's a Sept 2018 Model so it doesn't have the Pedestrian Noise Maker installed, what is that noise. I think its either the motors up front or heating/cooling system or perhaps the new update?. Its around 35 degrees tonight. Also FYI i just updated to the new software last night and haven't driven it since after MObile Service left tonight.
 

SammichLover

Banned
Dec 8, 2018
2,618
1,542
Yup
I occasionally hear a motor whine under some undetermined conditions, although I'm not sure I'd ever call it "loud". Post tomorrow if it is still there.

P.S. If it is there's a YouTube video on how to get to the sound box on the off chance that the tech installed it. I don't know if it can be retrofitted in?
 

boaterva

Supporting Member
Apr 2, 2016
7,564
3,736
Northern Virginia, USA
If you had the real pedestrian sound it would be there in reverse (and forward) when stopped. One way to exclude the motors.

And why would they install it? There is no retrofit for any of these rega going back to seat belts.
 

NJM3

Member
Aug 28, 2018
12
9
Central NJ
If it’s less than ~55-60F the car puts the motor in an “inefficient” mode to generate heat for the battery. I’ve noticed that the motor “whines” a lot more when the car is in this inefficient mode, especially during regen braking. My car is RWD so obviously I only hear it from the rear motor.
 

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