I though I'd post my notes from an attempt to upgrade my 2014 M135 S606 6.5 inch business nav to an 8.8 inch screen.
For your education, amusement and ideally some advice!
I had read enough to know that the pre-LCI cards use a different system to post-LCI units. From Marco's posts I understood my busnav was likely to be a CIC CHAMP_2 (APX1) head unit, just a few months before. Seeing the name MOVE on the map data status screen was also a dead givaway.
I see that mine is the later type glass-to-edge display part#: 9292244 (RHD)
![M135 6.5 inch original L7 CID Mid screen 800.jpg]( "M135 6.5 inch original L7 CID Mid screen 800.jpg")
I used real OEM to determine I wanted an 8.8 display (up to 03/2015) 65509292246 (RHD)
I found a very rare one come up on ebay so I took a chance. Here it is for comparison:
![M135 8.8 inch pronav L7 CID High screen 800.jpg]( "M135 8.8 inch pronav L7 CID High screen 800.jpg")
I reconnected the battery and used Bimmercode and v-link wifi OBD adapter to code entrynav, but of course only the CIC entry, not entrynav or NBT modules are available. I was able to code COMBOX DISPLAY_VARIANTE to breites_display (I did change it after this screenshot then clicked Code):
View attachment 1
The screen burst in to life, but sadly just to display NO SIGNAL:
![IMG_3185 8.8 No Signal - can't set DISPLAY_RESOLUTION on CIC CHAMP2.jpg]( "IMG_3185 8.8 No Signal - can't set DISPLAY_RESOLUTION on CIC CHAMP2.jpg")
So, I have a lovely 8.8 inch APX1 screen in perfect condition, but now what do I do?
I see that there are many NBT headunits are available, but will they work with this with this 2015 APX1 screen?
Will my other options still be available?
674 Harmon Kardon Hi-Fi (£600)
6WA Black panel display full (£125)
8TH Speed limit display (£200)
Also I believe the replacement headunit needs detailed coding and activation to match the car or an NBT emulator/harness.
I'm no longer hung-up about the £1000 that I should have spend when I specced the car 7 years ago!
(at least the 6.5 inch is back in working with no dash scratches)
Your advice appreciated.
Rob.
For your education, amusement and ideally some advice!
I had read enough to know that the pre-LCI cards use a different system to post-LCI units. From Marco's posts I understood my busnav was likely to be a CIC CHAMP_2 (APX1) head unit, just a few months before. Seeing the name MOVE on the map data status screen was also a dead givaway.
I see that mine is the later type glass-to-edge display part#: 9292244 (RHD)
I used real OEM to determine I wanted an 8.8 display (up to 03/2015) 65509292246 (RHD)
I found a very rare one come up on ebay so I took a chance. Here it is for comparison:
I reconnected the battery and used Bimmercode and v-link wifi OBD adapter to code entrynav, but of course only the CIC entry, not entrynav or NBT modules are available. I was able to code COMBOX DISPLAY_VARIANTE to breites_display (I did change it after this screenshot then clicked Code):
View attachment 1
The screen burst in to life, but sadly just to display NO SIGNAL:
So, I have a lovely 8.8 inch APX1 screen in perfect condition, but now what do I do?
I see that there are many NBT headunits are available, but will they work with this with this 2015 APX1 screen?
Will my other options still be available?
674 Harmon Kardon Hi-Fi (£600)
6WA Black panel display full (£125)
8TH Speed limit display (£200)
Also I believe the replacement headunit needs detailed coding and activation to match the car or an NBT emulator/harness.
I'm no longer hung-up about the £1000 that I should have spend when I specced the car 7 years ago!
(at least the 6.5 inch is back in working with no dash scratches)
Your advice appreciated.
Rob.
