What does "Front Lower Control Arm Washer" Installation?? refer to? I had

[Msolomi]

my car serviced this week and that reference was noted in the service report. It was done pursuant to a service bulletin. Thanks.

 

[brianman]

my car serviced this week and that reference was noted in the service report. It was done pursuant to a service bulletin. Thanks.

It's a relatively new service bulletin. Mine had that done recently as well. I was told what it meant and my brain only registered as "yet another minor improvement that is only good for us". I'm sure this doesn't help much, but it's all I've got for now.

 

[brandonmbeard]

I had this done in December. I have no idea what it meant.

 

[Msolomi]

From Tesla SC: "The front lower control arm washer installation is a proactive service repair, where we installed lock washers on your front suspension, to prevent the suspension from loosening."

 

[scott2613]

From Tesla SC: "The front lower control arm washer installation is a proactive service repair, where we installed lock washers on your front suspension, to prevent the suspension from loosening."

Some have been found loose.

 

[EarlyAdopter]

Perhaps it's related to this:
Tire Wear Post-Mortem - 2013 Tesla Model S Long-Term Road Test

Edmumds mentions concern about the eccentric cams loosing over time, causing the alignment to drift. Something similar front and back.