Your car has been built in the factory to a precise set of specifications.  Sometimes it is necessary to refer to these specifications, Identified as PR-Code or Engine-Number in order to correctly supply a replacement part.

This video will explain where the codes can be found on your car.

To browse a full list of Engine codes, Click on the link below

http://parts.firstforseatcars.com/img/cms/vw-engines.pdf