You need someone to hold it level and push on it torward the way it needs to pop in while you take a mini sledge and long sturdy flathead and tap on it. If it doesnt want to go in, disengage, rotate a few times and try again. I couldnt get it past the clip on my own till i had someone do that.

If you dont have someone put pressure on it and push it mostly rebounds off.

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2006 X5 4.8is Fully Loaded