[mgoldade]

Help! I was driving the other day, and all of a sudden, my NAV screen went red and I lost all audio. Then about 2 minutes later, the screen went black. I have restarted the car several times and it is still black with no audio, and I have the SOS warning error on my dash console. It this a fuse? Is it a cable? Is it something much more expensive? I have pulled apart the center console and removed the radio and climate controls to check the wires, and nothing seems out of order. Do I need to remove the screen? Is this a common issue?
Any and all feedback is welcome.

2011 328i xdrive / e90 LCI

[ctuna]

If you have a good voltage to the NAV the most likely thing is the Nav.

How's your battery?
The IBS system in this car can cause all kinds of odd
problems if the battery is low.

electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU

Anything in the Most Loop can cause an SOS error .
Such as Sat Module , Telecomunications module, Head Unit
and Logic 7 amplifier.

I would start with the Head Unit since it is essentially the server for
the Most Bus.

Check for the correct voltage to the Head Unit.
Also there is a fuse at both the back of the unit and the Cabin Fuse
Board behind the glove box.

georges links
https://www.bimmerfest.com/forums/at...9&d=1539905743

[Nickco43]

Originally Posted by mgoldade

Help! I was driving the other day, and all of a sudden, my NAV screen went red and I lost all audio. Then about 2 minutes later, the screen went black. I have restarted the car several times and it is still black with no audio, and I have the SOS warning error on my dash console. It this a fuse? Is it a cable? Is it something much more expensive? I have pulled apart the center console and removed the radio and climate controls to check the wires, and nothing seems out of order. Do I need to remove the screen? Is this a common issue?
Any and all feedback is welcome.

2011 328i xdrive / e90 LCI

The CIC head unit is not working. Check the fuse in the fuse box and on the back of the head unit.

[mgoldade]

Ok, fuse on the back of the head unit (15a) is ok. What fuse# is it behind the glove box?

[ctuna]

georges links
https://www.bimmerfest.com/forums/at...9&d=1539905743

download the first link inside the above link and look it up
if you can't decipher the fuse card on the back of the glove compartment.

also

https://www.newtis.info/tisv2/a/en/

[mgoldade]

ctuna,
The Bentley manual in that link is up to 2010. I have a 2011, and the wiring is different on the back of the head unit. Any chance you have the link for the e90 2011?

Marcus

[ctuna]

You can try the tis

https://www.newtis.info/tisv2/a/en/


I wouldn't think they would change anything but I could be wrong.
I don't think it is different even on the F30's
Technic uses the same harnesses he always did I believe.

https://www.google.com/url?sa=t&rct=...9c6jxCse4lPbHN

There is and additional channel on the new Hi Fi system but I think that is it.

[mgoldade]

Ok, isolated the issue to the head unit. I ordered one off of eBay. I made sure the model was identical. I have installed it and the screen came alive. Now, I don't have functioning SiriusXM or Nav/GPS. Do these need to be coded to the vehicle?

[ctuna]

Yes it has to be coded . ( to tell it what options you have)
Look in the idrive subforum and coding subforum for details.
there are enabling codes for Nav and Sirius has a subscription
after you get it enabled.

[mgoldade]

I actually took the car to the local BMW and asked them to code it. They had it for 4+ hours and gave it back to me saying it cannot be coded to my car. Is this a thing? They said it is locked to the vin it came out of.

[ctuna]

There idiots
The Vin's in every module can be coded the with proper software.
If something is not on the BMW list of boxed procedures
they won't do it and have no idea of how to do it
(The BMW Engineering software that all the coders use can do this.)
(and it would take no longer than an hour if there is no further
problem)
and if they could they would charge you a fortune to do it.
The car has a copy of the default factory settings in the
Cas and Frm modules.
Any coder can use the codes to program that hardware to
your car.(might need a ICOM cable since its and after 3/07 build)
Or you could go to the coding subforum and learn to do it
yourself.
There should be a lot of coders in the LA area that can do this

for you if you are not Technical or maybe someone could
remote code it for you.
You might want to give Bimmertech a call if you want a known
entity to do it.

Also there are idrive and coding subforums here that can help you.

Never take your car to a dealer if its not a warranty issue.
Find an Indy if you can't do it yourself.

Lots of people have done idrive installs, replacements and upgrades
here. Its not done by using what the dealership has software wise.