Bmw e92 coupe 2007 - Repair of the rear lamp, removing the plate from the led

Hello,
The rear lamp in the BMW e92 has a parking led light. Mine stopped shining, I decided to explain the plate and check.
The plate is under the plastic housing. LEDs are still good cables also 12v power supply. Can't find what smd 4001 is? Or maybe fix it differently. Thanks for helping fix this lamp.

Start by checking the tile power supply from the car.

The lamp is already working. One diode burned out. I founded a similar led, looking for the same. greetings

Maybe someone will need this information, this mysterious "4001" is a regulated current source, full type NUD4001.

link to full catalog data:
https://www.tme.eu/pl/Document/417d48571df91e35b49aa00385833c05/NUD4001.PDF

I am digging up for a topic related topic, @ daros6, did you find the same LED? Do you have a model of this diode on hand?

I see in the pictures that this replacement what you installed is much darker than the others and I would like to avoid it - I have the same problem and I will face the lamp soon

Hi everyone,
I have a question, also the same barrel as in this post. The LED tail lights in E70 hit the tailgate (standard on this model). I dismantled the whole layout with 4 LEDs, unfortunately it was impossible to recover. I made a cottage system with a resistor in the 150Om series, 4 diodes that have a 3V voltage drop. All in all, everything works only shines fainter than the original. I checked the electricity and on a switched off car it is not more than 12V, but a fired car is about 14.5V. If I threw out the resistor, it would shine stronger but probably the trail will shoot quickly. How can I correct the max diode power. Maybe some clever layout will be dropped by someone?
Greetings