VW / Audi 6-Pin Waterproof Tail Light Connector – OEM 4H0973713C | Male & Female

The OEM 4H0973713C is a 6-pin waterproof connector used in Volkswagen and Audi tail light assembly harnesses. This connector integrates stop light, turn signal, reverse light, tail/position light, LED driver, and ground circuits for multi-function rear light assemblies on VAG Group platforms. Available in Male and Female variants, bare or with 15cm pre-wired leads.

Key Specifications

Why Tail Light Connectors Fail

VW and Audi tail light connectors are exposed to road spray, moisture, vibration, and thermal cycling from LED light assemblies. Terminal corrosion or housing damage causes brake light failures, turn signal faults, reverse light malfunctions, or LED module communication errors. These are safety-critical faults that trigger B-code fault codes on VAG diagnostic systems (VCDS/OBD11). Replacing the connector restores full tail light circuit integrity.

Variant Guide

• Male / Male 15CM – Plug-side connector for the tail light module
• Female / Female 15CM – Socket-side connector for the harness side

Installation Steps

1. Disconnect the vehicle battery
2. Remove the tail light assembly to access the harness connector
3. Release the locking tab and unplug the original 6-pin connector
4. Transfer terminals to the new housing or splice in the pre-wired variant
5. Reinstall the tail light and verify all functions (brake, turn, reverse, position)

Frequently Asked Questions

Q: What VW and Audi models use OEM 4H0973713C?
A: This connector is used on VW Golf (MK7/MK8), Passat B8, Tiguan, and Audi A4 B9, A6 C8, A7, A8, Q5, Q7 tail light harnesses. Cross-reference your vehicle’s wiring diagram to confirm fitment.

Q: What fault codes indicate a tail light connector issue?
A: Common codes include B-codes for brake light circuit faults, turn signal open circuit, and LED module communication errors on VAG diagnostic systems (VCDS/OBD11).

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

Compatible Applications

• VW Golf MK7 / MK8 / Passat B8 / Tiguan – Tail light harness (OEM 4H0973713C)
• Audi A4 B9 / A6 C8 / A7 / A8 / Q5 / Q7 – Rear light assembly connector
• VAG Group LED tail light harness applications