Hi all! Can anyone here tell me the part number for the part that hold the expansion tank? My X is 2004 made 4.8is. I am going to replace my expansion tank/coolant tank, I found that the bracket/carrier that holds the tank is a bit loose on the inner side without a screw to fix it. Is it normal or one screw is missing? Thanks for help!

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--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.