Subject: Here is what was reported on the bmwnav group.... Author: ucrewx5 : member since August, 2004 : 478 posts Posted on: 2005-04-13 20:29:49

From: "Geoff Allison"
Date: Tue Apr 12, 2005 5:04 pm
Subject: Coding of Cars for split screen NAV and BMW Assist

For info, I have been trying to solve the issue of some NAVs that do not run split screen radio and that display BMW Assist when the car is equipped with a Bluetooth ULF (and that does not have BMW Assist), what I found out with the co-operation of BMW:

(1) The NAV split screen issue occurs when the NAV computer is coded in a car that would have been originally manufactured with a 4:3 non split screen system, should it have had one fitted at the time it was made.

(2) The BMW Assist menu option appears when a BT ULF is fitted for the
same reason, because such a car would have been equipped with a standard fixed phone that could be used for BMW Assist.

The only way to correctly fix this is to get a completely new ZCS code
from BMW Germany, they are not easy to obtain and you have to fight for this. It has taken me a week and three attempts to get this, the dealer incurred 600 UK pounds of cost and only charged 188 pounds in the end. It is NOW fixed!!!! (Two new ZCS codes did not work, DIS could not produce one as standard, and could not "convert" the car, hence it had to be issued and typed in by hand).

The quick and dirty way is to code your NAV computer in a later car and re-fit to your car, but it will display the chassis number of that car.

However, we did try a downgrade and upgrade in a later car, and that
also worked and it did not have any chassis number in the system, this is better, but if it is ever re-coded in the older car the function is reverted !!

So the best way is a new ZCS number, but hard to get.

Here's the post - http://autos.groups.yahoo.com/group/bmwnav/message/13278?expand=1

• split screen question - verhagke 2005-04-13 15:28:40 (1746 views)
  • Here is what was reported on the bmwnav group.... (url) - ucrewx5 2005-04-13 20:29:49 (722 views)
    • excellent post, thanks! (nt) - verhagke 2005-04-13 21:59:53 (305 views)
    • This is Depressing - Brian 2005-04-13 21:32:11 (320 views)
  • Side question... (url) - Brian 2005-04-13 17:43:11 (332 views)
    • nope, that was texaspaul, I used 65-12-6-927-910 (nt) - verhagke 2005-04-13 18:25:40 (300 views)
      • I'm Confused - Brian 2005-04-13 19:09:25 (276 views)
        • I hear ya... - verhagke 2005-04-13 21:51:34 (237 views)
  • I know what you mean! I lost my CD/Radio/Tape split screen when my car was coded (pic) - silber98 2005-04-13 16:30:29 (517 views)
    • does it come back if I switch to Euro mode? (nt) - verhagke 2005-04-13 18:29:00 (287 views)
      • No it does not come back in Euro mode. Due to the info jcarey posted not too - silber98 2005-04-13 22:39:11 (344 views)
  • There is nothing wrong and you're not missing anything. that's how the newer - LA-Sean 2005-04-13 15:49:55 (355 views)