Just a review:
I purchased the above interior kit for my 2012 X5 35D. Problems: the 9-LED (2515362) will not work in the c-pillar, wouldn't turn on. However, the 5 LED (2526289) one does. I put the 9-LED (per the install instructions) into the glove box and it blew the fuse. I tried to put the 5-LED into the center dome light but it wouldn't fit (I'm also gunshy since I'm afraid it may also blow the fuse). All the other lights work fine. I contacted ECS Tuning through this forum and had a good response. However, when I did email them through the website, I received no response. Their solution was to send me more bulbs. But, I told them I already had enough bulbs and wished to trade in the 9s for the 5s. So for those wishig to change, just be aware of these glitches....I'm satisfied with the lighting (Better than stock), but not really happy with them.