Im thinking of Getting the tmc box to put on my 1.4T... If I was to transfer this to the 1.6 multijet diesel would this still work on it as it says transfer to your next car on the website?

It will be transferable but you need it re programmed and a different wiring harness for the diesel.

Would you guys need to reprogram it or can I? The harness much? Thanks to, rapid response!

We have to re prog it, looms are £65 +vat and postage.