The Mystro S4

<center><img src="http://pictureposter.audiworld.com/9514/wheel_cap_mod.jpg"></center><p>I recieved my new 19" Forged DTM 7spoke wheels from Hartmann the other day. I also ordered the OEM RS4 center caps. I have noticed that some center caps are nightmare to pull off.
The problem is the newer center caps have a stronger larger retaining ring that pushes the sharp clip out into the grove in the wheel.
The trick is to round down the sharp edge off of the clip on all 4 corners so it gives it a little ramp when pulling off the center cap.
You still will have to use a special tool for removing the center caps(see pic). But you wont have to pull so hard.