I have been looking on here and other forums for what, I hope, is a simple answer.

I am looking for a Skoda version of RNS 510 unit for my Octavia but cannot find any information on the part revision suffix. What is the actual difference between the A, B, C and D parts (3TO 035 680). Are there newer 'better' versions?

Also, what do the first three characters tell about the unit? Does 1Z0 = Skoda, 3C0 = VW, etc.?

Want to make sure I buy the right version for my pre-FL '07 Octavia, so any advice or guidance on this will be appreciated.

Thanks in advance.

Edited 7 August, 201114 yr by KBPhoto

I think that you will be stuck with the a & B revision units, the later units cause battery drain, if you search on here you'll find lots of info, also a lot on VWNAVI.com as well

I think that you will be stuck with the a & B revision units, the later units cause battery drain

Thanks, I had heard about that and, as mine is a pre-MY08 / FL vehicle, I thought that the only way of fitting a newer RNS-510 was to upgrade the CAN Gateway to a newer (L or later revision) to prevent the battery drain and other issues.

I've been looking at a 3TO 035 680A unit, would this be a good choice for my vehicle?

Are 'A' and 'B' units newer versions than 'C' or 'D'?

What is the differences between the units?

If you search on here you'll find lots of info, also a lot on VWNAVI.com as well

I have tried searching and come up with a few very useful articles but none (that I can find) that actually address the differences between the revisions.

Thank you for you comments and information.