Weird tapping sounds from AC vent during the start

[dimexx3]

Hello,

Just today, i noticed a loud tapping sounds from my AC vent(passager side) every time i start my model S. the sound will last about 10-15seconds and it's gone. can someone tell me what this could be? i recorded a video of the sounds. my car only has 28k miles, 2016. thank you!

 

[2BEnhanced]

Mine just started doing the exact same thing a couple days ago. I have rebooted a few times, with no change.

 

[wwu123]

Not sure if there is a physical fan over on that side, but sounds like when my fridge compressor fan started to go out. The bearings in the fan axle started to fail, and the sound was fan blades hitting the shroud due to physical play. But as the fan speeds up the centrifugal force rebalances so it stops hitting. The bearings eventually then get worse and worse....

Just one guess.

 

[dimexx3]

Mine just started doing the exact same thing a couple days ago. I have rebooted a few times, with no change.

what year is yours?

 

[dimexx3]

Not sure if there is a physical fan over on that side, but sounds like when my fridge compressor fan started to go out. The bearings in the fan axle started to fail, and the sound was fan blades hitting the shroud due to physical play. But as the fan speeds up the centrifugal force rebalances so it stops hitting. The bearings eventually then get worse and worse....

Just one guess.

that makes sense...i’m going to turn off the fan before entering the car and what happens if the fan doesn’t start. at least i’ll be able to isolate the problem.

 

[2BEnhanced]

what year is yours?

Late 2016 P90D. And yours? It does sound like a fan, but strange both of ours started the same time. May just be coincidence...

 

[Gixx1300R]

It is the AC temp and mode actuator assembly. easy fix under warranty. Out of warranty the parts are about $40

 

[TMeister]

That's one of the vent servos hitting the limit of travel. Usually it happens because the positioning sensor has failed or the gear in the servo housing is stripped. If it's happening all the time, then the gear is likely stripped. Some are hard to get to but the part is inexpensive.

Still under warranty? Get tesla to fix it.

 

[T3SLA90D]

I heard the same thing few weeks ago a couple of times but haven’t heard it since. December 2016 90D

 

[dimexx3]

i took the car to tesla and they replaced the replace actuator assembly for mode door. problem solved. btw, i have 2016.5 model s