WUA

The first three characters of every VIN are the World Manufacturer Identifier (WMI). The code WUA is assigned to quattro GmbH, with the country of manufacture Germany.

So any 17-character VIN that begins with WUA was produced by quattro GmbH:

WUAZZZ0000000000000

The WMI only identifies the maker. To read the year, engine, plant and serial number, decode the complete 17-digit VIN with our free tool — then check which ECU it uses and what tuning services (DPF, EGR, AdBlue, DTC off, Stage) are available.