Thread by @Nidhggr2

#Tesla #Model3 #squeak
Why does the wishbone start to squeak?
The transverse control arm consists of several plates, from above water partially penetrates through a gap and washes the grease out of the ball joint, which then starts to squeak.
Sealing area red lined.

There is a service bulletin for sealing this gap,this also applies after the warranty. The gap is simply sealed from above with a body adhesive. Tesla does not re-grease the joint or remove the water from it.

As long as you are under warranty, Tesla will replace squeaky control arms, out of warranty you have to pay yourself.

Ball joint before cleaning.
Rust, water, rancid grease

To clean the ball joint, jack up the car, remove the front wheel. Then you can unscrew the nut and remove the bolt to loosen the ball joint.
The bellows is secured with a spring washer. Remove it carefully without penetrating the bellows.
Then you can simply fold the bellows down

The ball and bellows are best cleaned with brake cleaner and WD40, alternating until everything is clean. Always wiggle the ball back and forth vigorously.

Before cleaning, it is important to cover the brake disc so that it does not drip full of grease.

Then grease the ball while moving it back and forth. Fold up the bellows and fill it completely with grease. Then pull it cleanly over the collar and fix it with the spring washer.

Now you can reattach the ball joint with bolt and nut, mount the wheel and do a test drive. Divine silence now reigns again.

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