Alientech144300K265 KESSv2 – VAG DSG DL501 16 pin Connector

This is a specialized 16‑pin diagnostic + programming cable/connector designed for use with VAG group vehicles (Volkswagen, Audi, etc.) equipped with the DSG DL501 transmission control module (TCU). It lets ECU/tuning tools communicate directly with the gearbox ECU.

Summary

This connector isn’t just an ordinary OBD‑II lead — it’s a dedicated 16‑pin cable for accessing and tuning the DL501 transmission controller in VAG vehicles. It’s an essential accessory for professional and enthusiast tuners working with DSG gearboxes on supported vehicles.

If you’re planning to do DSG tuning, flashing, or advanced diagnostics on a VW/Audi with a DL501 gearbox, this cable is what connects your tuning interface to the TCU.