http://www.bmwusa.com/Standard/Content/Owner/BMWCenterServices/GlassRepair.aspx

For clear vision: Glass Repair from BMW
Even when it's minor, damage to your BMW's windshield is more than just a distraction. Damage from road debris can reduce the integrity of your windshield, impair your vision and jeopardize your safety.

You can rely on your BMW center for help with Glass Repair from BMW. We use the high quality materials and tools you've come to expect-and your car is usually ready within the hour.

Most windshield damage is repairable, but if it is beyond repair, the windshield can be replaced using Original BMW Parts.

フロントガラスの傷うち、70％が修理可能らしい。
直せない箇所は、ドライバーの正面（安全のため？）と縁（工具が入らない？）。
作業時間は1時間くらい。
それにしても、綺麗になおりますね。

BMW Glass Repair keeps you in the picture when glass damage occurs and lets you profit from the experience and know-how of specially trained BMW Service experts. This is how it works.

BMW glass repair
http://www.youtube.com/watch?v=bWp-Kh-uhTY