C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

automatic sound levels based on speed?

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Old Feb 8, 2002 | 01:50 PM
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automatic sound levels based on speed?

Someone mentioned before that they found this feature a bit annoying in their C230. Is it an option on the stock radio and Bose? And can you turn it off?
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Old Feb 8, 2002 | 02:18 PM
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c230k, black, auto, c2 (let the sunshine in), Bose, leather, and CD
Do you have your car yet? Have you heard this feature? I might be in the minority, but I really like it.
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Old Feb 8, 2002 | 02:33 PM
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I don't know if this feature is on the base radio. On the Bose there are 4 settings; 0 db, -3 db, -6 db, and -9 db. O db is the off position and -9 produces the greatest change. Default is -6. A tech must use the DAS computer to change the settings. You can't do it yourself.
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Old Feb 8, 2002 | 02:35 PM
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2002 C230K, Silver, 6-speed, Evo, Roof, Leather, CD, Staggered C7 Wheels
I do not have the Bose option, but I do have the automatic sound level based on speed option on the standard stereo.
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Old Feb 8, 2002 | 02:47 PM
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c230k, black, auto, c2 (let the sunshine in), Bose, leather, and CD
I have the Bose system. It's definately on it.
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Old Feb 8, 2002 | 07:39 PM
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It also on the basic stereo system. it feels like the volume just jumps up when I hit certain speed. I liked the speed sensitive volume control on the BMW Z3 and it really helps when the top was down.

Maybe the computer should only adjust the volume is it detects either the roof, windows are open or not. And adjust accordingly to speed and how wide the roof and windows are opened.

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Old Feb 20, 2002 | 08:55 AM
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Originally posted by Lynn
I don't know if this feature is on the base radio. On the Bose there are 4 settings; 0 db, -3 db, -6 db, and -9 db. O db is the off position and -9 produces the greatest change. Default is -6. A tech must use the DAS computer to change the settings. You can't do it yourself.
Does anyone know where these settings are located on the DAS? Is it a "Norway" setting? My service adviser had no idea what I was talking about. I'd like them to set it to -3db.
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Old Feb 20, 2002 | 11:47 AM
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I don't know where it is located in the DAS. Some members have had theirs adjusted or turned off. Maybe some of them can help.
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Old Feb 20, 2002 | 12:55 PM
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Originally posted by avlis
Does anyone know where these settings are located on the DAS? Is it a "Norway" setting? My service adviser had no idea what I was talking about. I'd like them to set it to -3db.
i got it adjusted to 3db but i don't like that either now. i've grown more sensitive to the change and can distinguish the volume change.

as for where, i'm sorry, i've forgotten where but it is not a hidden type of setting like the Norway setting. maybe another technician at your dealership knows? mine knew where it was, but he didn't know where the fuel settings were at so i think it is a spotty knowledge type of thing.
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Old Feb 20, 2002 | 01:28 PM
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My car is currently at the LA VPC and should be here by the end of next week! I'm getting C5, so I'll have both Bose and the roof. It says in the brochure that the "Audio Pilot" feature actually listens to cabin noise and adjusts levels accordingly. This would seem more advanced than simply relying on speed--and not factoring-in whether the roof was open, it's raining, etc. ANy thoughts?
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Old Feb 20, 2002 | 01:44 PM
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Thanks Young for the clarification. I can just see myself at the dealer: "um, yes, I'd like you to disable the speed sensitive feature and take the Audio Pilot to -3dB." Anyone know if R.A.B. Motors in San Rafael has anyone good in the service dept.?
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Old Feb 20, 2002 | 01:46 PM
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i like~!

i have bose system and i didn't notice that first...but i noticed sounds reduces when comes to stopping.....and goes back up when driving.....i LOVE that feature.....however..it's kinda annoying sometimes when my favorite music is on~!

lates!
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Old Feb 20, 2002 | 01:56 PM
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Originally posted by SFVideoGuy
Thanks Young for the clarification. I can just see myself at the dealer: "um, yes, I'd like you to disable the speed sensitive feature and take the Audio Pilot to -3dB." Anyone know if R.A.B. Motors in San Rafael has anyone good in the service dept.?
haha, i wrongly blamed bose for such a stupid system for a long time believing that the speed sensitive system was the audiopilot. when i took it to the dealer, i said turn the AUDIOPILOT off; he went to the speed sensitive system's screen and promptly adjusted it for me.

it wasn't until much later that i realized that one had nothing to do w/ the other and that my technician didn't know anything about the audiopilot, only the speed sensitive system.

my bmw has a similar feature (although i've been told it is based on rpm, not speed). but it isn't as obvious (maybe 1.5dbs)
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