I reaaaaaaaaaally like those! Do they come for the steering wheel and center caps also??

The trunk roundel, at least on mine, was fixed on with thin black double-sided tape (and it's GOOD). To work it loose, I used a 1" putty knife (plastic one I never thought I'd use, but came in handy) with a thin cloth behind it to protect the paint. The rear took more work than the front, since you can't work from behind it unless you want to remove the inner trunk panel (For a roundel!?!). I used adhesive remover (Goof-Off) to clean up the tape & residue, then replaced it with new double-sided, cut to size. I didn't expect to need it, but it's crucial for the rear... From the looks of it, not only will the roundel not stay seated very well without it, but water getting in there could work it's way inside the rear panel.... Yuck.
Done this way, roundel sits perfect, no water entry, and it's all good. :thumbup: (Another useless mod complete- LOL)
Hope this helps.

Yep, if you like em, they even come for the wheels...

thats hot .

I need this same instruction for the trunk roundel, please.

You can also use dental floss to remove the rear roundel.

i'm afraid the silver part will break in the process. no need to worry?

NICE! Will try the dental floss when I replace mine with CFs. Went with these:

Carbon Fiber Emblem Hood OR Trunk 82mm Roundel FOR BMW | eBay

Just to make sure: the rear roundel on the E53 is 78mm. I didn't see any CF ones in 78mm when I looked for a replacement. Mine, MY04, built 10/03, was affixed with double-sided tape without grommets.

I thought there were the same size...

If you put in your MY, Make and Model on your eBay page, I think you'll see it's only marked for fitment to Hood.