2021 Model S - Underchassis clunk

[dmurphy]

I know there've been more than a fair share of suspension clunk/bump sounds, but this one is fairly unique to me.

I can't tell exactly what's clunking; anyone recognize this particular clunk sound? It almost sounds like a "bouncing" metal on metal sound.

I've been waiting for my round steering wheel to be installed so I can get this looked at by service - can only have one service ticket open at a time, and don't want to add this to the same ticket as my wheel....

So I figured I'd ask the Hivemind and see if anyone recognizes this bouncing-metal-on-metal sound?

edit: Check :11-20 seconds and then :32-36 seconds in the video.

 

[buckets0fun]

Sounds sway bar endlink, ish.

Can you see anything out of place when turning the wheel side to side and looking at the suspension / struts?

 

[dmurphy]

Sounds sway bar endlink, ish.

Can you see anything out of place when turning the wheel side to side and looking at the suspension / struts?

Everything “looks” good under there - I don’t see anything obviously loose, but that doesn’t mean much as the sound isn’t consistent either. It doesn’t reproduce as loudly on rainy days, for example.

 

[beatle]

Sounds sway bar endlink, ish.

Can you see anything out of place when turning the wheel side to side and looking at the suspension / struts?

My thoughts as well. Can remove a wheel and see if the endlink fasteners are tight. If they are, give it a good yank back and forth to see if it moves/rattles.

Could also be a swaybar mount, though that's not particularly accessible on the S.

 

[dmurphy]

My thoughts as well. Can remove a wheel and see if the endlink fasteners are tight. If they are, give it a good yank back and forth to see if it moves/rattles.

Could also be a swaybar mount, though that's not particularly accessible on the S.

Thank you both @beatle and @buckets0fun! I'm with you -- 95% sure it's the sway bar. Checking other videos and sounds and yep -- that's very much what I'm hearing.

I'm just stuck right now waiting for mobile service to finish the steering wheel swap... then I can open a new ticket for this.

Really appreciate the guidance and direction - sure sounds like a bad link. I've got a crazy-busy weekend coming up, but if I get some time next week, I'll throw the car up on stands and play with the links - see if I can hear something.

 

[philip295]

I had a knocking sound on my 2014S. It was the towing hook bouncing under the frunk carpet. After I packed it with cloth, the knock was gone.

 

[bhzmark]

Services Centers are replacing rear toe links to fix this sort of noise on refresh Model Ss