I've been trying to upgrade the bulbs on my 2007 Z4 M and was going off a previous list I could find. I felt it was very vague and some bulbs were incorrect (especially the brake bulbs).
This is everything I have used and have completed everything except for the interior headlight bulbs (turn signal, angel eye, and parking light).
Bulb Type - Color - Qty - Location - Link
194 - white - 5x: (2x license plate, 3x map/dome light)
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 NOTES: center map tight to put in. also, these might be a little too bright to have as map/dome (they are BLINDING). Buy 3 packs, you will have 1 bulb extra
194 - amber -4x: (2x side marker roundrel, 2x headlight -parking- light)
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
BA9S - warm white <5000k - 2x: halo/angel eyes
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 NOTES: anything cooler than 5000k and the light will look blue due to the actual ring having a blue tint
BAY9S - amber - 4x: front turn signals (2x on each side)
https://www.aliexpress.com/item/3284...73e64c4dzFc5zm
1156 - red - 2x: brake lights
https://www.amazon.com/gp/product/B0...KG5BQMBR&psc=1
7507 - amber - 2x: rear turn signals
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
921 - white - 7x: (2x reverse lights, 2x footwell, 1x glove compartment, 1x center console, 1x trunk/cargo)
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 NOTES: buy 4 packs, you will have 1 bulb extra. I used a 921 INSTEAD of the normal 194 in the footwell, glove compartment, center console, trunk/cargo. it fits if you decide not to use the black heat-shielding piece on some of them (i forget which ones had it)
BAY9S - red - 2x: brake force display bulbs (comes on under hard braking)
https://www.aliexpress.com/item/3284...73e64c4dzFc5zm
