Single click sound when turning right; who can ID it?

[sti2relaxxin]

Car: 2008 RS4

So after a few weeks of scouring the internet and hanging out underneath my car most nights, I figured I'd post a video and ask for help. You will clearly hear the very distinct solitary "click" that comes from my front left wheel area as I back out of my driveway, and then again as I pull in.

FYI- I didn't apply the brakes at all as I went back and forth, and I even separated the pads from the rotor and tried this last night just to verify the pads aren't the culprit. I have inspected the bushing on the upper and lower control arms and they all look okay, but who knows what they may be hiding underneath. The suspension is completely stock.

The clicking sound prompted me to replace the aftermarket axle the previous owner installed with one from Raxles, so I'm pretty sure the axle is not the culprit either.

Please take a listen and chime in if you recognize this click : )

[Bonz099]

Steering rack, you'll need to remove the battery to get to the bolt one on the passenger side. and the one in the middle is under the car above the shift linkage. Its a 10mm 12-point socket if i remember correctly.

[sti2relaxxin]

Steering rack, you'll need to remove the battery to get to the bolt one on the passenger side. and the one in the middle is under the car above the shift linkage. Its a 10mm 12-point socket if i remember correctly.

Thanks for your feedback Bonz099. I was researching how to adjust the steering rack last night as I had heard it can make a clicking noise. I just received two sets of triple square bits today from Amazon so I think I'll take a look tonight. Do these two bolts just need to be tightened?

[badger.]

Thanks for your feedback Bonz099. I was researching how to adjust the steering rack last night as I had heard it can make a clicking noise. I just received two sets of triple square bits today from Amazon so I think I'll take a look tonight. Do these two bolts just need to be tightened?

FYI you need a 10mm 12pt socket not bit. This is what you need for the steering rack:

[sti2relaxxin]

FYI you need a 10mm 12pt socket not bit]

Thanks for clarifying badger. I was excited to use one of my new bits but they'll have to wait. I do have a socket set that will work so I'm good to go. I'll post an update most likely in a few hours : )

[sti2relaxxin]

Well the two top steering rack bolts were properly torqued to 49lbs., so they aren't the issue. While I was out there I figured I'd do my nightly wheel removal to poke around the wheel well and I torqued all of the bolts I could find in there. The bolt that holds the upper control arm closest to the driver was slightly loose, but other than that they were all nice and tight.

Keep the suggestions coming if you recognize the sound!