Further to recent posts regarding this matter, I have looked out my paperwork and can provide the following regarding my engine issues and its replacement. Hopefully this will help other owners with either the same issues, or if they suspect they may encounter issues in the future.
My 180biturbo was registered on 1st March 2010, engine number was CFCA 004478, I do not know what version of EGR it originally had fitted.
My first EGR failed at approx 20000 miles in 2011, I do not know what version of EGR was fitted.
At just under 50000 miles I encountered severe oil consumption issues. VW paid 70% and I paid 30% of the replacement engine etc, works carried out in January 2016. Engine is model 03L 100 092 AX & EGR 03L.115.512.D, which matches the info on the screenshots posted above on 30th October by fyrstyk. I therefore have the latest and correct replacements. These are in accordance with the TPI dated 29th October 2016, variant 3.1, screenshots appear above posted on 29th November by T4WFA.
Regarding the posts by LarsLarsen, his replacement engine fitted in late 2015 came with EGR version 03L.115.512.C, which clearly from the screen shots above is a faulty part. Clearly VW should have recalled his van when version 'D' came out a few weeks after his engine replacement. Somehow they did not. It would seem that the version 'C' EGR was still being fitted in late 2015. I think it wise that all Cali owners with this engine should check what version of EGR they have, there is a plate just to the right of the oil filter which shows this. If you have version 'C' then potentially you are in trouble.
What I do NOT understand is why the latest TPI is dated as late as 29th October 2016, and only has model year 2010 in the top left hand corner of page 1. Also at the bottom of page 10 there is reference to 'T6', I believe that some early T6 vans also had these engines. All very confusing.
Hope all this helps.