I recorded a video (some time ago) of what happens before and after the "clink" you hear as the car settles in. It doesn't appear to do anything at all before the golf tee mod. You can clearly see the difference after the mod.
2010 135i - TiAg Coral Red 6MT ///M-Sport
2013 X3 28i - N20 Mineral Silver / Sand Beige / Premium, Tech