Radio issues

JTdrivin1 · 06-09-2008, 07:19 AM

So in my 1er, the sound from the radio mutes out after 5-20 seconds from starting the engine. I have the basic radio, and this occurs if i'm listening to radio, cd, or aux.

I brought it into service Friday, but they couldn't replicate it and therefore didn't know what else to do. It only occurs when the car has been sitting long enought to go to sleep, and does not occur if you turn it off and then back on again.

Has anyone experienced anything like this, or know what it could possibly be? I was hoping it'd be a simple software update, but the service guy was clueless. :iono:

Thanks...

jbenington86 · 06-09-2008, 07:51 AM

my music never cuts out starting the engine i dont think...ill have to try it on wednesday

knightps · 06-09-2008, 08:08 AM

Yeah, my radio hiccups after I start the engine. I lose sound for about a 1-2 seconds but then it comes back for good.

JTdrivin1 · 06-09-2008, 08:10 AM

Quote:

Originally Posted by knightps

Yeah, my radio hiccups after I start the engine. I lose sound for about a 1-2 seconds but then it comes back for good.

glad to hear i'm not the only one... but this normal? are we supposed to just live with it?

F10 TTV8 · 06-09-2008, 09:12 AM

Quote:

Originally Posted by JTdrivin1

glad to hear i'm not the only one... but this normal? are we supposed to just live with it?

Yep, I have the same problem. I have not taken it to the dealer yet. I am going to wait until I need other work done.

I-One-Da? · 06-09-2008, 10:30 AM

Are you guys saying that you are sitting there with the radio playing and the car off and then you turn the car on and it cuts out for a couple seconds?

If that is the case this is normal. Every car I have ever had does this.

plien69 · 06-09-2008, 10:35 AM

No, not while you're in the act of turning the car on. It's more like this:

1. Start car (radio starts playing normally)
2. Start driving off.
3. After a number of seconds (5-20), the radio will "hiccup" with a momentary gap in sound.

JTdrivin1 · 06-09-2008, 10:36 AM

Quote:

Originally Posted by I-One-Da?

Are you guys saying that you are sitting there with the radio playing and the car off and then you turn the car on and it cuts out for a couple seconds?

If that is the case this is normal. Every car I have ever had does this.

nah. what i've been experiencing is i put the key in and push the button right away. car starts, radio starts to play. and within 5 to 20 seconds, the sound will mute for a second, come back for a second, mute for a second, then come back for good. i don't know if it happens if you don't start the car, since everytime i get i start the car and go.

but this is definitely not normal... service said they hadn't heard of anything yet, so i thought i'd see what other 1s are experiencing.

plien69 · 06-09-2008, 11:02 AM

Mine only cuts out once, and for less than a second. It's just a split-second blip in the sound.

JTdrivin1 · 06-09-2008, 11:08 AM

Quote:

Originally Posted by plien69

Mine only cuts out once, and for less than a second. It's just a split-second blip in the sound.

yea, i've experienced both a one or two 'blip' in sound.

lacrosse · 06-09-2008, 12:55 PM

My HD cuts in and out all the time (drives me nuts). Is this normal?

topvega · 06-09-2008, 01:23 PM

Have not had this happen but I do notice that every time I shut my car off with the radio at a set volume the next time I use the car it has reset itself to a low volume and not remembered where the volume was when I shut it off... kinda bugs me...

plien69 · 06-09-2008, 01:25 PM

Yes, I've noticed that as well. As a digital signal carried on sidebands, it will be susceptible to carrier quality/level to maintain the content signal.

With normal analog radio, a reduction in signal strength or quality manifests itself as static, multipath distortion, lower volume, etc.

With the digital HD signal, the quality of the HD content remains unaffected by the quality of the carrier until a threshold point where it is unable to reconstitute the HD signal, at which point the HD signal is dropped and the radio reverts to normal analog mode. Please forgive this very basic digital information explanation, as I'm not entirely sure of the specifics of HD Radio.

Bottom line is, it probably drops just as much as satellite radio, and perhaps even more.

lacrosse · 06-09-2008, 02:55 PM

Quote:

Originally Posted by plien69

Yes, I've noticed that as well. As a digital signal carried on sidebands, it will be susceptible to carrier quality/level to maintain the content signal.

With normal analog radio, a reduction in signal strength or quality manifests itself as static, multipath distortion, lower volume, etc.

With the digital HD signal, the quality of the HD content remains unaffected by the quality of the carrier until a threshold point where it is unable to reconstitute the HD signal, at which point the HD signal is dropped and the radio reverts to normal analog mode. Please forgive this very basic digital information explanation, as I'm not entirely sure of the specifics of HD Radio.

Bottom line is, it probably drops just as much as satellite radio, and perhaps even more.

Thanks for explaining!

Mad Dragon · 06-09-2008, 06:00 PM

SI B65 06 08
Audio, Navigation, Monitors, Alarms, SRS April 2008
Technical Service

SUBJECT
RAD2: The Audio Volume is Briefly Muted or Reduced

MODEL
E90, E91, E92, E93 *(3 Series) E82, E88 *(1 Series) *with option 663 (Radio BMW Professional) Vehicles produced from September 2007

SITUATION
After the vehicle is parked for a couple of hours or overnight (deep sleep mode), the following scenario can occur intermittently, either in AM, FM or CD mode: Approximately 30 to 90 seconds after the radio begins to play, the audio is either muted or reduced to a low volume for about 1 second. The audio returns to the previous set volume for 2 seconds, then the audio is once again either muted or reduced to a low volume for 1 second. Thereafter, the radio plays normally with the previously set audio volume.

CAUSE
Software in the RAD2 (Radio2 from SIEMENS). The issue only affects vehicles without a MOST bus. The momentary muting occurs during the pre-start check as the RAD2 attempts a MOST bus check.

INFORMATION
Do not replace parts! Please explain the cause of the problem to the customer. This Service Information will be updated as soon as an improvement is available. Submit a TC-PuMA Case for tracking purpose only.

JTdrivin1 · 06-09-2008, 07:04 PM

ha!! that's awesome, exactly what i'm experiencing, thanks! now the only problem is there isn't a fix...

1Ronnie · 06-09-2008, 11:27 PM

Quote:

Originally Posted by JTdrivin1

ha!! that's awesome, exactly what i'm experiencing, thanks! now the only problem is there isn't a fix...

Just think to yourself ... "That's my friggin clever car doing an invaluable self-test to make sure everything still rocks" ... second gone ... and you're a happy camper

BMW Power · 06-10-2008, 02:39 AM

This doesnt happen to my car, but the volume does go down after a switch the car off. But I think thats just something BMW put in so that you dont blow yourself away with loud music when you start the car

The one thing my radio does is that every now and then it picks up signals from other music stations and plays that for a split second instead of the radio station I'm listening to, it happens randomly and can happen even 40min after I start my car, really has no pattern. Its very irritating.... But it doesnt happen often at all, maybe once every couple weeks. CD's play normally

AMR · 06-10-2008, 08:47 PM

Thanks Mad Dragon, this helps a great deal!!! I have this issue and it was driving me crazy, I posted a question a few days ago and nobody replied...

Quote:

Originally Posted by Mad Dragon

SI B65 06 08
Audio, Navigation, Monitors, Alarms, SRS April 2008
Technical Service

SUBJECT
RAD2: The Audio Volume is Briefly Muted or Reduced

MODEL
E90, E91, E92, E93 *(3 Series) E82, E88 *(1 Series) *with option 663 (Radio BMW Professional) Vehicles produced from September 2007

SITUATION
After the vehicle is parked for a couple of hours or overnight (deep sleep mode), the following scenario can occur intermittently, either in AM, FM or CD mode: Approximately 30 to 90 seconds after the radio begins to play, the audio is either muted or reduced to a low volume for about 1 second. The audio returns to the previous set volume for 2 seconds, then the audio is once again either muted or reduced to a low volume for 1 second. Thereafter, the radio plays normally with the previously set audio volume.

CAUSE
Software in the RAD2 (Radio2 from SIEMENS). The issue only affects vehicles without a MOST bus. The momentary muting occurs during the pre-start check as the RAD2 attempts a MOST bus check.

INFORMATION
Do not replace parts! Please explain the cause of the problem to the customer. This Service Information will be updated as soon as an improvement is available. Submit a TC-PuMA Case for tracking purpose only.

JTdrivin1 · 06-11-2008, 06:39 AM

Well i sent this service bulletin into my service guys, thinking i'm giving them the answer they couldn't figure out. they said it didn't apply to me because this is for the basic radio only, and my build sheet says i have hi-fi. but there's another service bulletin out there for the hi-fi system where it experiences the same thing. apparently, this all requires a software fix, which won't be out until the september timeframe.

now.... back to which radio i have. i didn't order the hi-fi, and the window sticker says i just have the basic radio, but my service guy was convinced i have hi-fi based on my build spec. so i took a look under my front seats, and there's subs under there!! free hi-fi? i'll take it!!:thumbup:

so i think everyone should reach under the seat feeling for the sub's grill... maybe bmw was giving out free hi-fi...

JT

plien69 · 06-11-2008, 09:02 AM

I think the # and placement of speakers is the same between North American Standard and Premium audio.

I believe premium audio gives you upgraded speakers and amps (and probably also crossovers), plus Logic 7 DSP.

JTdrivin1 · 06-11-2008, 10:55 AM

so how do you determine if you have premium? rip apart the trunk for the amp?

06-09-2008, 07:19 AM	#1
JTdrivin1 1 Love 5 Rep 255 Posts Drives: 2011 135i 6MT Join Date: Mar 2008 Location: NY iTrader: (0)	Radio issues So in my 1er, the sound from the radio mutes out after 5-20 seconds from starting the engine. I have the basic radio, and this occurs if i'm listening to radio, cd, or aux. I brought it into service Friday, but they couldn't replicate it and therefore didn't know what else to do. It only occurs when the car has been sitting long enought to go to sleep, and does not occur if you turn it off and then back on again. Has anyone experienced anything like this, or know what it could possibly be? I was hoping it'd be a simple software update, but the service guy was clueless. :iono: Thanks...
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06-09-2008, 07:51 AM	#2
jbenington86 Major 58 Rep 1,201 Posts Drives: 2015 M235i, 2017 Tundra Join Date: May 2008 Location: TX iTrader: (0) Garage List 2015 M235i [0.00] 2008 128i [0.00]	my music never cuts out starting the engine i dont think...ill have to try it on wednesday
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06-09-2008, 08:08 AM	#3
knightps Private First Class 3 Rep 102 Posts Drives: SGM 135i Join Date: Oct 2008 Location: Saratoga Springs, NY iTrader: (0)	Yeah, my radio hiccups after I start the engine. I lose sound for about a 1-2 seconds but then it comes back for good.
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06-09-2008, 10:30 AM	#6
I-One-Da? That One Guy 12 Rep 391 Posts Drives: Join Date: May 2008 iTrader: (0)	Are you guys saying that you are sitting there with the radio playing and the car off and then you turn the car on and it cuts out for a couple seconds? If that is the case this is normal. Every car I have ever had does this. __________________ \| Alpine White \| Coral \| Gloss Black \| Paddles \| Sport \| Comfort \| Heated Seats \| I-Pod \| Performance Rotors \| Shadowline Grill \| GB E-Brake \| GB Gear Selector \| 35% Tint \| BMS Intake \| GP Thunders \| Debaged \| Bimmian Black Roundels \|
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06-09-2008, 10:35 AM	#7
plien69 Captain 20 Rep 841 Posts Drives: 2014 M235i Join Date: Apr 2007 Location: CT iTrader: (0)	No, not while you're in the act of turning the car on. It's more like this: 1. Start car (radio starts playing normally) 2. Start driving off. 3. After a number of seconds (5-20), the radio will "hiccup" with a momentary gap in sound.
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06-09-2008, 11:02 AM	#9
plien69 Captain 20 Rep 841 Posts Drives: 2014 M235i Join Date: Apr 2007 Location: CT iTrader: (0)	Mine only cuts out once, and for less than a second. It's just a split-second blip in the sound.
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06-09-2008, 12:55 PM	#11
lacrosse Captain 11 Rep 817 Posts Drives: 2006 997 C2 Join Date: Apr 2008 Location: Long Island iTrader: (0) Garage List 2006 Carrera C2 [0.00] 2008 135i [0.00] 2002 Mercedes ML 320 [0.00] 2006 330i [0.00]	My HD cuts in and out all the time (drives me nuts). Is this normal? __________________ Gone: 2008 135i/2006 330i Arrived: 2006 997/Black/Sand Beige Leather/6MT/Sports Chrono Plus/19" Vorsteiner V-308s/Factory Nav/Sports Steering Wheel/Contrasting Mats/Heated Seats/Bose /V1/iPod adapter/Parrot Bluetooth/50% all around/Black "911" script/"Gundo Hack"/AWE black chrome tips/H&R adjustable front and rear sways/Rennline shift knob
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06-09-2008, 01:23 PM	#12
topvega Kinda sorta banned on N54 19 Rep 626 Posts Drives: 135 SGM JB3 Join Date: Mar 2008 Location: NJ Exit 91 iTrader: (0)	Have not had this happen but I do notice that every time I shut my car off with the radio at a set volume the next time I use the car it has reset itself to a low volume and not remembered where the volume was when I shut it off... kinda bugs me... __________________
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06-09-2008, 01:25 PM	#13
plien69 Captain 20 Rep 841 Posts Drives: 2014 M235i Join Date: Apr 2007 Location: CT iTrader: (0)	Yes, I've noticed that as well. As a digital signal carried on sidebands, it will be susceptible to carrier quality/level to maintain the content signal. With normal analog radio, a reduction in signal strength or quality manifests itself as static, multipath distortion, lower volume, etc. With the digital HD signal, the quality of the HD content remains unaffected by the quality of the carrier until a threshold point where it is unable to reconstitute the HD signal, at which point the HD signal is dropped and the radio reverts to normal analog mode. Please forgive this very basic digital information explanation, as I'm not entirely sure of the specifics of HD Radio. Bottom line is, it probably drops just as much as satellite radio, and perhaps even more.
	Appreciate 0 Quote

06-09-2008, 06:00 PM	#15
Mad Dragon . 27 Rep 932 Posts Drives: 2010 GTI Join Date: Mar 2008 Location: MD iTrader: (0)	SI B65 06 08 Audio, Navigation, Monitors, Alarms, SRS April 2008 Technical Service SUBJECT RAD2: The Audio Volume is Briefly Muted or Reduced MODEL E90, E91, E92, E93 (3 Series) E82, E88 (1 Series) with option 663 (Radio BMW Professional) Vehicles produced from September 2007 SITUATION* After the vehicle is parked for a couple of hours or overnight (deep sleep mode), the following scenario can occur intermittently, either in AM, FM or CD mode: Approximately 30 to 90 seconds after the radio begins to play, the audio is either muted or reduced to a low volume for about 1 second. The audio returns to the previous set volume for 2 seconds, then the audio is once again either muted or reduced to a low volume for 1 second. Thereafter, the radio plays normally with the previously set audio volume. CAUSE Software in the RAD2 (Radio2 from SIEMENS). The issue only affects vehicles without a MOST bus. The momentary muting occurs during the pre-start check as the RAD2 attempts a MOST bus check. INFORMATION Do not replace parts! Please explain the cause of the problem to the customer. This Service Information will be updated as soon as an improvement is available. Submit a TC-PuMA Case for tracking purpose only.
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06-09-2008, 07:04 PM	#16
JTdrivin1 1 Love 5 Rep 255 Posts Drives: 2011 135i 6MT Join Date: Mar 2008 Location: NY iTrader: (0)	ha!! that's awesome, exactly what i'm experiencing, thanks! now the only problem is there isn't a fix...
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06-10-2008, 02:39 AM	#18
BMW Power Pure Driving Pleasure 8 Rep 93 Posts Drives: Join Date: Aug 2007 iTrader: (0)	This doesnt happen to my car, but the volume does go down after a switch the car off. But I think thats just something BMW put in so that you dont blow yourself away with loud music when you start the car The one thing my radio does is that every now and then it picks up signals from other music stations and plays that for a split second instead of the radio station I'm listening to, it happens randomly and can happen even 40min after I start my car, really has no pattern. Its very irritating.... But it doesnt happen often at all, maybe once every couple weeks. CD's play normally __________________ 130i -Sport Package ~ Alpine White ~ Boston Leather Black ~ 6MT ~ Anthracite Roof ~ M Double-spoke 208M 18" ~ Glass Sunroof ~ Park Distance Control Rear
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06-11-2008, 06:39 AM	#20
JTdrivin1 1 Love 5 Rep 255 Posts Drives: 2011 135i 6MT Join Date: Mar 2008 Location: NY iTrader: (0)	Well i sent this service bulletin into my service guys, thinking i'm giving them the answer they couldn't figure out. they said it didn't apply to me because this is for the basic radio only, and my build sheet says i have hi-fi. but there's another service bulletin out there for the hi-fi system where it experiences the same thing. apparently, this all requires a software fix, which won't be out until the september timeframe. now.... back to which radio i have. i didn't order the hi-fi, and the window sticker says i just have the basic radio, but my service guy was convinced i have hi-fi based on my build spec. so i took a look under my front seats, and there's subs under there!! free hi-fi? i'll take it!!:thumbup: so i think everyone should reach under the seat feeling for the sub's grill... maybe bmw was giving out free hi-fi... JT
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06-11-2008, 09:02 AM	#21
plien69 Captain 20 Rep 841 Posts Drives: 2014 M235i Join Date: Apr 2007 Location: CT iTrader: (0)	I think the # and placement of speakers is the same between North American Standard and Premium audio. I believe premium audio gives you upgraded speakers and amps (and probably also crossovers), plus Logic 7 DSP.
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06-11-2008, 10:55 AM	#22
JTdrivin1 1 Love 5 Rep 255 Posts Drives: 2011 135i 6MT Join Date: Mar 2008 Location: NY iTrader: (0)	so how do you determine if you have premium? rip apart the trunk for the amp?
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