Suspension corrosion on 2017 Model X

[EarlyAdopter]

I was checking on the brake rotors on my 2017 Model X and took a look back behind the rotor and noticed that one of the suspension components, the spindle knuckle I think, is showing a surprising amount of corrosion. It's the same on both driver and passenger side. It looks crusty and shriveled. I've never seen anything like this before. My 2014 Model S, for comparison (the last photo with the red caliper), doesn't look anything like this.

Does this corrosion look normal to folks or like a problem? What do your spindle knuckles look like on your 5+ year old Model X? Should I be concerned about safety and potential failure on this component?

 

[thesmokingman]

Got road salt? G'damn that's a lot of corrosion!

 

[EarlyAdopter]

I'm the Seattle area, so we occasionally see some road salt maybe once or twice a year but not that much. It's not like I'm in Minnesota or Norway or something. And even in those places, I've never seen anyone post anything like this.

 

[ngng]

Can you scrape it off? It it really dirty, or is that the actual corrosion? I've not seen that before.

 

[EarlyAdopter]

Can you scrape it off? It it really dirty, or is that the actual corrosion? I've not seen that before.

Good call. I jacked up the car and took the wheel off so I could get at it, and sure enough it's just dirt! Wow, had me fooled from the photos. Weird that it just accumulated on that part and no others.

Whelp, false alarm. Good reminder though to check on these parts from time to time.