I asked my dealer .. they told me that u should remove the whole bumper to uninstall the lower grill. and U cannot do it by your self because it have a sensitive plastic clips, which can be broken so easily.

thank you

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08' X5 4.8i with all the options,aerokit,25mm rear wheels spacers,meisterschaft Exhaust GT racing performance level,Hamann lowering kit,LUMMA headlights eyebrows.

MY X5 PICS