It can be very frustrating trying to put the H7 bulb back, that spring is hard to put back. Here is the procedure from the owners manual. You just have to see how it works, once you figure it out it should not take you too long to get that spring back.
Changing the low beams makes changing the high beams super exciting since the 9005 are super easy. I'd have killed for some 9006's for the lows or a less retarded retaining clip!