Control Unit Card Compatible with Valeo b003809.2 LED BMW X3 f25 For Stop Light Repair

The solution for flickering/faulty taillights on your BMW X3 F25:

When LED taillights stop working properly, 95% of the time it's caused by a broken PCB that needs to be replaced. Simply plug in the old PCB, plug in the new one, and you're done!

The b003809.2 control unit is used to control the LEDs of the left and right rear lights of the BMW X3 F25 (model produced from 2010 to 2017). In particular, it manages the following functions:

Switching the LEDs on and off: The control unit receives a signal from the car's electrical control unit and switches the LEDs of the left rear light on or off.

Light intensity adjustment: The control unit can adjust the light intensity of the left rear light LEDs according to the instrument panel settings.

Management of the different lighting modes: the control unit manages the different lighting modes of the left rear light, such as the position light, the brake light, the reversing light and the direction indicator.

Fault diagnosis: The control unit is able to diagnose any faults in the LEDs of the left rear light and report the error to the vehicle's electrical control unit.

Symptoms of malfunction:

If the LEDs on the left rear light do not light up or if they are flashing, there could be a problem with the control unit b003809.2.

If the light intensity of the LEDs in the left rear light is too low or too high, there could be a problem with the control unit.

If the different lighting modes of the left rear light do not work properly, there could be a problem with the control unit.

Repair:

If the control unit b003809.2 malfunctions, it can be repaired or replaced. Repair is generally the cheapest option, but it's not always possible. Replacing the control unit is more expensive, but it guarantees a permanent repair.

Where to buy the control unit:

The control unit b003809.2 can be purchased online or from a BMW parts dealer. It's important to purchase a control unit that's compatible with your vehicle model.

Other reference numbers:

7212677

63127212677

0263127212677

Compatible car models:

BMW X3 F25 (2010-2017)

But what exactly is a PCB (Printed Circuit Board)?

Well, it's a small board inside the taillight that stabilizes the flow of LED lights.

Unfortunately, there comes a time when your BMW's taillights stop working. Many people think the only solution is to buy a completely new one. As we all know, this is a very expensive replacement (>$200). That's why we've done extensive research and created our own PCB, which has the same components as the original (VALEO b003809.2). However, we've made some changes to ensure a long-lasting product (up to 10 times longer!).

Our board is compatible with taillights including the following part numbers:

63217217311, 63217217312, 63217217313, 63217217314