This harness adapts MK6 GLI models that came with factory LED tails to work with Eurolabs clear LED tails. It reconfigures the factory 5-pin LED wiring so the new tails function correctly, including proper brake and turn separation.
Key Features
Built specifically for Eurolabs clear LED tails on MK6 GLI
Converts factory 5-pin LED wiring to the Eurolabs layout
Separates combined brake/turn signals for correct function
Uses proper gauge wiring and OEM-style connectors
Installation guide available as a PDF download
Fitment & Compatibility
MK6 Jetta (non-GLI) 2011–2014 — Compatible with Eurolabs clear LED tails, no harness required
MK6 GLI (halogen tails, 4-pin) — Compatible with Eurolabs clear LED tails, no harness required
MK6 GLI (factory LED tails, 5-pin) — Requires this harness, needed to adapt wiring for proper function
MK6.5 / Facelift models — Not compatible, different tails and wiring
Important: To confirm which tail setup your car has, remove a tail light and check the connector.
Large 4-pin plug with thicker wires = halogen, no harness required
Small 5-pin plug with thinner wires = factory LED, this harness is required
If you’re unsure, send me a photo of your connector or your VIN and I’ll confirm before you order.
Why Use This Harness
Eurolabs clear LED tails require separate brake and turn channels, unlike the factory combined LED output. This harness cleanly re-routes the signals so the tails work correctly without splicing or guesswork.