BMW G20 LCI Left LED Headlight Assembly 63115A4F751 - Used Original Parts

Diagnosis and Common Symptoms

From the workshop floor, a faulty G20 LCI headlight isn't just a cosmetic issue; it's a critical system failure. Diagnosis typically begins with reading the Body Domain Controller (BDC) module. You'll often find fault codes such as 8041B2 (Daytime running light, left, faulty), 8041A8 (Turn indicator, front left, short circuit), or LIN bus communication errors pointing to the internal headlight electronics.

On the dashboard, the driver will see iDrive messages like "Left dipped beam failure," "Left daytime/parking light malfunction," or "Adaptive Headlight Malfunction." Physical symptoms we observe include a flickering or completely extinguished "angel eye" DRL, intermittent turn signal operation, moisture ingress leading to internal condensation, or a total loss of the main LED beam. These issues often stem from internal circuit board failure or water damage, not just a failed bulb.

Introduction

Restore the signature road presence and safety of your BMW 3 Series with this Genuine Used Left LED Headlight Assembly. Sourced directly from a donor vehicle, each unit undergoes rigorous bench testing by our technicians to validate every function—from the DRL to the main beam. This assembly offers a reliable and cost-effective solution to restore factory lighting performance without the expense of a brand-new part.

Product Details

• Brand: BMW

• Model Compatibility: BMW 3 Series Sedan (G20 LCI), 2022 onwards

• Part Name: Left Side LED Headlight Assembly (Passenger Side - LHD / Driver Side - RHD)

• Condition: Genuine Used (Tested Working)

• Notes: This is a bare headlight assembly. Control modules are typically not included and must be transferred from your original unit. The part number 63115A4F751 corresponds to the standard LED headlight; verify compatibility if your vehicle is equipped with Adaptive LED Headlights.