I can't find a technical bulletin specifically for the DTC you have logging, but looking through my DTC reports i've managed to get rid of it in the past with a software update.

The CGGB had a few software issues and the latest software version available for all versions of the 03C906024 software is currently 9971.

So if yours is an ECU with software part number 03C906024 with a couple of letters after it and it has a software version preceeding 9971, I would get it updated.

A VW dealer or independent competent with ODIS would be able to do this update.

Regards,
Jon.