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Precision Engineered Components

VNCI 6154A Diagnostic Interface Tool CAN FD DoIP Protocol

This is a working diagnostic interface built around the VNCI 6154A chipset, designed as a straightforward alternative to the original equipment. It handles CAN FD and DoIP protocols across VAG vehicles from 1995 through 2023 - which covers a pretty wide span of Audi, Volkswagen and Skoda models if you're deep into that ecosystem.

What matters here is simplicity. The device ships with its own driver, so you're not hunting through driver managers or wrestling with third-party software dependencies. Plug it in via USB and it recognises itself. No faffing about with compatibility layers or wondering whether you've got the right version installed. The firmware sits at version 9.10, which is current enough to handle the protocols these vehicles actually use.

It's a small plastic unit, weighs barely anything, and draws 24W when it's working. The appeal is straightforward: if you're diagnosing or interfacing with VAG vehicles and you want something that just operates without theatre, this does that. It's not a J2534 Passthru device - that's worth noting if you're comparing against other tools - but for direct diagnostic work it's fit for purpose.