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E92 PLAKA VE KAPI LAMBALARININ LED'E DÖNÜŞÜMÜ

Since the ECU is monitoring the current of any exterior light, changing to a LED bulb will trigger the error message.
In order to avoid the error message, you will need to fool the ECU that you are using the correct power consumption.
This is what I used in my LED licence plate light mod...

1. An extra pair of Licence plate light housing (less than US$6 for a pair)
2. Three 25W 220 Ohm resistor w/ metal heat shink. (pls note the resister value will vary with different LED bulbs)
3. Some Telfon coated cables and Telfon tubes
4. A few Nylon ties
5. A soldering iron and some solder
6. Two 37mm 6LED bulbs

I bought a new pair of the licence plate light housing, so that I can easily reverse the process when I bring my car into service, they won't even know I did anything to the lights.

For the telfon cablesvactually, you can use regular cables. I only use it for added protection.
First, you have to take out the licence light housing. Just put a flat screwdriver into the hole to the left of the plastic lens push to the right & pull the housing down.

Then just pull off the plugs.

Then you need to solder the 3 resistors to the housing. I am running them in parallel. Since the two lights are running in parallel, it doesn't matter where you install the 3 resisters. For the cable length, 30cm is good enough.

I put two to the left housing and one to the right housing. In first photo, you can see a small resister at the right. It is actually good enough to just use this one. However, it will gets very hot. For safety, I divided the load to 3 extra large resisters.

Now, install the modified light housing back to the trunk lid. and secure the 3 resister with nylon ties.
I found there are 3 good places to put this inside the trunk lid...

Now put the trunk lid lining back and it is done!
Also noticed that my blacklines has no white lights leaking at the edges?....just replace all four P21W bulbs with a red color bulbs. Not only will there be no white light leaking out, the blackline also looks cooler at night!

For the door entrance lights, it is not being monitored by the ECU....so you don't need anything to fool it.
For this mod, I am using a 6 LED plate. On the passenger side door, I put the LED plate right behind the plastic diffusor, so doesn't really get to be diffused. The result is 6 bright LED squares projected to the ground (with three dimmer ones as bonus). Looks kind of cool.

On the Driver side, I put the 6 LED plate with a clearance of approx 1cm to the diffusor. I get one large bright lights. This illuminate the floor very well make sure I don't step on any shXT when exiting the car...