E46 and E53 housing is the same IIRC. You just get a plastic pry tool and pry at the seam behind the dome light switches and it pops right out. Really easy.

Can you share a Link of those LEDs? or PM it to me? I realy like those, but I don't have pano/sunroof, so I need less/different?

just google for T10 LED.

Are all the interior lamps T10's?

there are also some 36mm tubular LED lamps - most for the "bottom" lighting, for trunk lighting, puddle light, .......

But only these 2 types.

Ok, thanks.

how many of T10 LEDs and 36mm s should I get? 10 each will be enought?

So far I have replaced 9 tubular and 10 T10 until now.
2 are still missing and I will not replace them. These are the 2 above the sun shades.

I would also order some spares.

Good luck

I just replaced mine bulbs to LED in the doom. I don't know if it is exact same as yours, but this is how mine worked. First, I must say......be careful taking out anything plastic in colder weather as it is more brittle.

So push the whole unit towards the rear of the vehicle. Then pry/pull lightly on the front. The front is placed in with two tabs and the rear has a "L" plastic piece the keeps it flush with the headliner.

Good luck. If you run into problems let me know and Ill take mine out and take a picture. It is a 30 job to take out when done correctly. Remember whole assembly. No trim pieces pulled.

Thanks.