I took mine off with a lot of dental floss and a towel covered screw driver to pry it gently. It isn't as simple as the hood roundel with the 2 pins.

On the trunk one there are the 2 pins and adhesive (3M type tape) all the way around. That's what you will need the dental floss for. You need to go slow. You will end up breaking a ton of floss, but if you are patient it will come off.

Good luck.

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ON HER WAY OUT: 2009 X5 xDrive48i - Black Sapphire Metallic - Saddle Brown Nevada Leather - Dark Bamboo Wood

ALMOST HERE: 2007 M5 - Silver Grey Metallic (more to come)