Didn't see a how-to on this, but it's a fairly simple fix. For anyone that hasn't done it yet, the improvement is immediately noticeable, and is how the cars should have been from day 1.
Some background on the issue can be found here
. Basically they either forgot to put a spacer/bushing in (very early builds according to service notes), or they put one in that wasn't tall enough to take up all the slack, resulting in "clicking" or "clunking".
Parts & tools needed:
- T30 torx bit
- 10mm socket (to disconnect battery terminal)
- 24mm socket
- Part # B132U0523F (should be for MY12+)
- Small needle nose pliers
- Small flat blade screwdriver
You'll be removing the airbag from the steering wheel, so take appropriate precautions to avoid any accidental/unintended deployments!
The basic steps for that are outlined in this
how-to by @Chirrowolf;. The key thing is to remove the negative terminal from the battery, and make sure it can't make contact. I left the vehicle disconnected for ~20 minutes before starting on the next steps.
You'll use the T30 to remove to two screws on either side of the steering wheel shroud to remove the airbag/horn. The small flat blade screwdriver should be used to push the connector tabs downward. Disconnect both the airbag and cruise control connectors.
When you set the airbag module aside, make sure it's facing upward, and there's plenty of room around it in case something sets it off. Electrostatic discharges can set these things off, so be careful.
Center the steering wheel, and then using the 24mm socket, remove the central steering wheel retaining bolt. Be careful not to disturb the rotating connector plate behind it. Also, once the wheel is off, do not push on the steering wheel column area (where the bolt came out of), as that could potentially collapse it.
With the wheel off, you should see the aluminum spacer on the inside of the rotating connector plate. Using the pliers, carefully remove it, and replace with the new, taller spacer.
If you haven't disturbed the rotating connector plate, you should still see a red mark in the window near the lower arrow (refer to picture). Otherwise, you'll have to follow the directions that are printed on the connector plate to "reset" its neutral position.
Reattach the steering wheel, and torque the bolt down. I don't recall finding a torque spec (EDIT: apparently it's 50nm/37lbf), so I snugged it up to what I felt was an acceptable amount.
Reconnect the cruise control and airbag connectors. Gently place the airbag module back in and tighten the 2 x T30 screws.
Reconnect the negative terminal on the battery. Reindex the windows, reset your radio presets, your clock, etc. Take it out on a drive and be amazed at how quiet and smooth the steering wheel feels. No more clicking, clunking, small sideways movements, etc.