BMW F20 F21 LCI DRL LED Module 63117428425 7428425 6 Pin With Heatsink

Replace a diagnosed faulty DRL light-source component with this HIDS-DIRECT 6-pin LED module with heatsink, intended for selected BMW 1 Series F20/F21 LCI LED headlights using application reference 63117428425.

The module supplies the LED light source for the matching daytime running light / angel eye arrangement. It is supplied with the metal heatsink shown in the photographs, allowing the affected component to be replaced while retaining a serviceable headlamp assembly and its other components.

Product overview

Vehicle compatibility

The supplier catalogue lists F20/F21 applications for 2015–2018. Treat this as a guide, not a fitment guarantee. BMW lists LED (05A2) and Adaptive LED (0552) headlamp applications under the OE reference, but the actual module and headlamp must still match. Later registrations and any application outside the supplier range require individual confirmation.

Not a universal F20/F21 part: do not assume compatibility with pre-facelift, halogen or other headlamp designs. This is not a halogen-to-LED conversion kit.

What is included?

• 1 × 6-pin LED DRL light-source module
• Metal heatsink as pictured, with the assembled light-source components and connector

Not included: the companion 3-pin module, a second module, complete headlamp, main headlight control unit, wiring adaptor, tools or separate fitting materials. The screws visible within the module are assembly components; additional headlamp mounting hardware is not promised.

Why replace the DRL light-source module?

A failure of the LED light source does not necessarily mean the entire headlight needs replacing. Where testing confirms this module is responsible, replacing the affected unit can retain the existing serviceable housing, light guides and control electronics.

Symptoms that may warrant investigation include:

• A daytime running light or angel eye section that does not illuminate
• Intermittent operation or flickering
• Uneven or reduced brightness compared with the other side
• A lighting warning or stored diagnostic fault code

These symptoms do not identify the module on their own. Check the supply, wiring, connectors, moisture damage, control electronics and light guides before ordering. A replacement LED source cannot restore a burnt, discoloured or otherwise damaged light guide.

3-pin and 6-pin: what is the difference?

Both versions are associated with the same OE application reference, but they have different electrical connector arrangements. They are not interchangeable alternatives, and the pin count does not mean left versus right.

This listing covers only the 6-pin component. Compare the original unit's connector width and pin count, housing shape, mounting ears and LED-board layout with the product photographs. Do not order a different connector type because the reference number looks the same.

Installation and diagnostic notes

1. Confirm the fault and part match. Read relevant fault codes and compare the removed component with the replacement before fitting.
2. Follow the vehicle repair procedure. Isolate electrical power as specified by BMW and allow headlamp components to cool. Access requirements depend on the headlamp installation.
3. Check the surrounding headlamp. Inspect for water ingress, corrosion, damaged wiring, worn seals and heat damage. Correct the underlying cause before fitting the replacement.
4. Protect the light-source assembly. Avoid touching or damaging the LED emitters, circuit board or connector pins. Keep mating surfaces clean and follow any applicable sealing or thermal-interface instructions.
5. Refit correctly. Use the appropriate hardware and manufacturer-specified fastening procedure; no generic torque or sealant specification is supplied here.
6. Test after installation. Check DRL and other headlamp functions, clear stored faults where appropriate and investigate any remaining warning.

HF describes these modules as plug and play. This does not replace fault diagnosis or the vehicle-specific repair procedure. Professional installation by an automotive lighting specialist is recommended.

Frequently asked questions

Before ordering

1. Reference: compare 63117428425 / 63 11 7 428 425 / 7428425.
2. Connector: confirm the original component has 6 pins.
3. Physical design: match the housing, fixing points and LED-board arrangement.
4. Headlamp specification: confirm the matching F20/F21 LCI LED application.
5. Quantity: this purchase supplies one module with heatsink.

HIDS-DIRECT aftermarket replacement. Vehicle manufacturers and OE references are named for compatibility identification only. No genuine BMW or Hella manufacture is claimed.