CCC Pro Nav

trickadero · 06-21-2016, 08:25 AM

Hi,

I've not long had my 06 330 and am having an intermittent issue with the stereo which I was wondering if anyone had come across previously.

The cars got CCC pro nav. Sometimes the audio will cut out for a brief period - 2-3 seconds or so - before coming back for a slightly longer period - 5 seconds or so. This cycle will then repeat continuously.

This occurs seemingly at random, either from the the beginning of a trip or mid way through. I normally just turn off the radio and everything will be fine the next time I come to drive the car. On a long trip, 3 hours or more, I might turn the stereo back on later in the journey (without having stopped the car) and everything will be fine again.

The audio cuts out on the radio and the aux-in, I've not tested with the CD but assume it'll be the same.

The cars got bluetooth and the issue occurs with bluetooth connected or disconnected to my phone.

Does anyone have any ideas? Is it worth having the car software updated perhaps as I don't think it's ever had an update. Could it be to do with the bluetooth as this seems to be a common source of faults?

Any help appreciated.

kitt1980 · 06-25-2016, 05:03 AM

I know when mine stopped working it was because I had unplugged a cable under the glovebox when getting to the blower fan ( advised on here after posting)

Maybe check to see if its not loose

hondarayblue · 06-25-2016, 10:29 AM

First step would be a system reboot. Press and hold the eject and voume button for 30 seconds. If that doesn't work, get your battery checked.

trickadero · 06-27-2016, 07:24 AM

Thanks both,

I've given it a reboot so will see if that fixes the issue.

The battery is new so I don't suspect that to be the root cause.

MW · 10-11-2016, 12:49 AM

Has the problem been solved?

I am experiencing the same issue. Radio/CD/Aux sound will go away and come back at random. Resetting the CCC does not remedy the problem. In my case the temperature does not seem to play any role. Winter or summer, there is little if any change.

On another thread this problem has been described as a fault in one of the networked audio components. In the specific example the TCU (bluetooth voice command unit) was replaced which sorted out the problem. That sounds like an expensive shot in the dark if you are not 100% certain.

The car starts fine - I have no idea how much power that requires from the battery. Can the battery cause this problem if it still starts the car easily? How do you test that the battery is in good enough condition?

One more possibility I thought of, maybe it is a long-shot: If there is a 90 degree turn in the fibre optic audio cable and the turn radius is too small, could this be causing intermittent loss of audio? At warmer temps this angle might become more acute if the is nowhere for the fibre cable to go when it is expanding length-wise.

Thanks for any feedback.

bytejunkie · 10-11-2016, 08:48 AM

Quote:

Originally Posted by MW

On another thread this problem has been described as a fault in one of the networked audio components. In the specific example the TCU (bluetooth voice command unit) was replaced which sorted out the problem. That sounds like an expensive shot in the dark if you are not 100% certain.

put a most loop terminator in place of the component you suspect is faulty. though a tcu or mulf will usually show its broken when the phone stops working.

trickadero · 10-11-2016, 10:53 AM

Hi,

I've not been using the car much recently, not for long trips anyway, so while I've not had the issue occur recently I couldn't confidently say it has been resolved.

If it has resolved it has done so itself as I've done nothing to remedy it. I tried a reboot of the CCC, but that didn't make a difference.

I do have a new phone so there's a possibility that could have improved things in my instance (went from Sony to Samsung if relevant).

Agreed on a TCU issue being a possibility, my searches probably led me to the same results your's did. If the issue re-surfaces for me the first thing I'm going to try is a software update for the car. If that doesn't work then I'll look into how to diagnose a TCU issue further.

anees · 10-11-2016, 03:06 PM

Exact same issues with mine. My old MULF unit had given up the ghost.

Replaced it with a MULF2 unit, coded car and job done.

Just remembered, it also affected the rear PDC as well.

MW · 10-23-2016, 11:58 AM

I unplugged the MULF unit - all audio now perfect. I do not use the bluetooth functionality, so I will leave it as is. Thanks for the help!!!

06-21-2016, 08:25 AM	#1
trickadero New Member 1 Rep 9 Posts Drives: e90 330i M Sport (06) Join Date: Jun 2016 Location: Preston, UK iTrader: (0)	CCC Pro Nav - Audio intermittently cutting out? Hi, I've not long had my 06 330 and am having an intermittent issue with the stereo which I was wondering if anyone had come across previously. The cars got CCC pro nav. Sometimes the audio will cut out for a brief period - 2-3 seconds or so - before coming back for a slightly longer period - 5 seconds or so. This cycle will then repeat continuously. This occurs seemingly at random, either from the the beginning of a trip or mid way through. I normally just turn off the radio and everything will be fine the next time I come to drive the car. On a long trip, 3 hours or more, I might turn the stereo back on later in the journey (without having stopped the car) and everything will be fine again. The audio cuts out on the radio and the aux-in, I've not tested with the CD but assume it'll be the same. The cars got bluetooth and the issue occurs with bluetooth connected or disconnected to my phone. Does anyone have any ideas? Is it worth having the car software updated perhaps as I don't think it's ever had an update. Could it be to do with the bluetooth as this seems to be a common source of faults? Any help appreciated.
	Appreciate 0 Tweet Quote

06-25-2016, 05:03 AM	#2
kitt1980 New Member 1 Rep 18 Posts Drives: E91 320d M Sport 2007 Join Date: Oct 2013 Location: Bolton iTrader: (0)	I know when mine stopped working it was because I had unplugged a cable under the glovebox when getting to the blower fan ( advised on here after posting) Maybe check to see if its not loose
	Appreciate 0 Quote

06-25-2016, 10:29 AM	#3
hondarayblue Private 5 Rep 60 Posts Drives: E90 330i M Sport Join Date: Sep 2015 Location: Greenford, England iTrader: (0)	First step would be a system reboot. Press and hold the eject and voume button for 30 seconds. If that doesn't work, get your battery checked.
	Appreciate 0 Quote

06-27-2016, 07:24 AM	#4
trickadero New Member 1 Rep 9 Posts Drives: e90 330i M Sport (06) Join Date: Jun 2016 Location: Preston, UK iTrader: (0)	Thanks both, I've given it a reboot so will see if that fixes the issue. The battery is new so I don't suspect that to be the root cause.
	Appreciate 0 Quote

10-11-2016, 12:49 AM	#5
MW New member 0 Rep 6 Posts Drives: E90 330i Exclusive Join Date: Oct 2016 Location: Cape Town iTrader: (0)	Has the problem been solved? I am experiencing the same issue. Radio/CD/Aux sound will go away and come back at random. Resetting the CCC does not remedy the problem. In my case the temperature does not seem to play any role. Winter or summer, there is little if any change. On another thread this problem has been described as a fault in one of the networked audio components. In the specific example the TCU (bluetooth voice command unit) was replaced which sorted out the problem. That sounds like an expensive shot in the dark if you are not 100% certain. The car starts fine - I have no idea how much power that requires from the battery. Can the battery cause this problem if it still starts the car easily? How do you test that the battery is in good enough condition? One more possibility I thought of, maybe it is a long-shot: If there is a 90 degree turn in the fibre optic audio cable and the turn radius is too small, could this be causing intermittent loss of audio? At warmer temps this angle might become more acute if the is nowhere for the fibre cable to go when it is expanding length-wise. Thanks for any feedback.
	Appreciate 0 Quote

10-11-2016, 10:53 AM	#7
trickadero New Member 1 Rep 9 Posts Drives: e90 330i M Sport (06) Join Date: Jun 2016 Location: Preston, UK iTrader: (0)	Hi, I've not been using the car much recently, not for long trips anyway, so while I've not had the issue occur recently I couldn't confidently say it has been resolved. If it has resolved it has done so itself as I've done nothing to remedy it. I tried a reboot of the CCC, but that didn't make a difference. I do have a new phone so there's a possibility that could have improved things in my instance (went from Sony to Samsung if relevant). Agreed on a TCU issue being a possibility, my searches probably led me to the same results your's did. If the issue re-surfaces for me the first thing I'm going to try is a software update for the car. If that doesn't work then I'll look into how to diagnose a TCU issue further.
	Appreciate 0 Quote

10-11-2016, 03:06 PM	#8
anees Second Lieutenant 60 Rep 207 Posts Drives: E90 330i Sport Join Date: Jul 2005 Location: Woking, England iTrader: (0)	Exact same issues with mine. My old MULF unit had given up the ghost. Replaced it with a MULF2 unit, coded car and job done. Just remembered, it also affected the rear PDC as well. Last edited by anees; 10-11-2016 at 03:08 PM.. Reason: added in PDC information
	Appreciate 0 Quote

10-23-2016, 11:58 AM	#9
MW New member 0 Rep 6 Posts Drives: E90 330i Exclusive Join Date: Oct 2016 Location: Cape Town iTrader: (0)	I unplugged the MULF unit - all audio now perfect. I do not use the bluetooth functionality, so I will leave it as is. Thanks for the help!!!
	Appreciate 0 Quote