VW 12-Pin Halogen-to-LED Headlight Upgrade Connector – Male & Female OEM

This 12-pin connector is used in Volkswagen headlight harness upgrade applications — specifically for retrofitting LED headlights onto vehicles originally equipped with halogen headlights. The 12-pin configuration provides the additional circuits required by LED headlight assemblies (LED driver CAN bus, DRL control, AFS stepper motor, headlight leveling) that are not present in the original halogen headlight harness. Available in Male and Female variants, bare or with 15cm pre-wired leads.

Key Specifications

• Pin count: 12-pin
• Gender options: Male / Female
• Housing material: High-temp nylon (PA66)
• Available as: Bare connector or 15cm pre-wired leads
• Application: Halogen-to-LED headlight upgrade harness
• Compatible brands: Volkswagen

Halogen vs. LED Headlight Connector Requirements

Halogen headlights use a simple 3–5 pin connector (low beam, high beam, position light, ground). LED headlights require significantly more circuits:

• LED driver power and ground (2 pins) — not present in halogen harness
• LED driver CAN bus (2 pins) — not present in halogen harness
• AFS stepper motor (2 pins) — not present in halogen harness
• Headlight leveling motor (2 pins) — may be present in halogen harness (electric leveling)
• DRL circuit (1 pin) — may be present in halogen harness
• Turn signal (1 pin) — present in halogen harness

The 12-pin upgrade connector provides all circuits required by the LED headlight assembly, including the additional CAN bus and AFS circuits not present in the original halogen harness.

Compatible VW Models (LED Retrofit)

• VW Golf Mk7 (5G, 2012–2019): Halogen to LED headlight retrofit
• VW Golf Mk7.5 (5G facelift, 2017–2019): Halogen to full LED retrofit
• VW Polo Mk6 (AW, 2017–present): Halogen to LED retrofit
• VW Passat B8 (3G, 2014–2023): Halogen to LED retrofit
• VW Tiguan Mk2 (AD1, 2016–present): Halogen to LED retrofit

VCDS Coding After LED Retrofit

After installing LED headlights on a vehicle originally equipped with halogen headlights, VCDS coding is required to:

• Enable the LED headlight module in the BCM (Body Control Module)
• Activate AFS (Adaptive Front-lighting System) if the LED headlights include AFS
• Enable automatic headlight leveling
• Disable halogen-specific fault codes that would otherwise be triggered

Frequently Asked Questions

Q: Do I need to modify the vehicle harness for a LED headlight retrofit?
A: Yes. The original halogen harness does not have all the circuits required by LED headlights. This 12-pin upgrade connector is used to extend the harness with the additional circuits (CAN bus, AFS, LED driver power) required by the LED headlight assembly.

Q: Are terminals included?
A: Yes, terminals are included with all variants.