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Old 04-03-2015, 08:04 PM
Polite Canuck Polite Canuck is offline
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Confirmed: MY 2014 F30 328 has Active Sounds

It has long been thought that the F30 328 has had Active Sound since 2014, however, so far it has been based on anecdotal evidence. Well, I just wrapped up installing my aftermarket amplifier and I can confirm the unit exists on the 328. Apologies for the quality of the pictures.

Initially, when I saw the two wire harnesses (one going to audio amp and the other to the Active Sound amp), I freaked out thinking perhaps BMW split the 7-CH amp into a 6-1 or 5-2. None of the pictures I had seen of people who had done an amp upgrade before had two harnesses and I immediately thought the worst. A search on Realoem using the part number on the unit (9343317) quickly clarified it is a "Control Unit with Active Sound Design", except the website only shows it for the F30 N55s and the F22 N20s. I am pretty sure the unit is operational since after I was done hooking up my audio amp, it wouldn't turn on when I tried to test it. Turns out I had forgotten to hook the second harness to this Active Sound amplifier and, I guess, that is required to complete the circuit. Click image for larger version

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Old 04-04-2015, 04:15 AM
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...only in the 328i *Sport Line*?
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Old 04-04-2015, 07:24 AM
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Thank you for sharing this information, Polite Canuck! Your photo in attachment 501706 clearly shows the ASD module, as depicted in this diagram:



Good observation regarding the connection to your new audio amplifier. The fact it wouldn't work unless connected to the ASD module suggests that ASD is operational.

So at this juncture, is it safe to conclude that ALL gasoline powered F3x cars in the U.S. and Canada, MY 2014 or newer, not only have an ASD module but one that's actually 'active'? Or just 328i Sport Line, as Saintor suggested?
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Old 04-04-2015, 08:03 AM
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Quote:
Originally Posted by gkr778 View Post
Thank you for sharing this information, Polite Canuck! Your photo in attachment 501706 clearly shows the ASD module, as depicted in this diagram:



Good observation regarding the connection to your new audio amplifier. The fact it wouldn't work unless connected to the ASD module suggests that ASD is operational.

So at this juncture, is it safe to conclude that ALL gasoline powered F3x cars in the U.S. and Canada, MY 2014 or newer, not only have an ASD module but one that's actually 'active'? Or just 328i Sport Line, as Saintor suggested?
ASD was widely used only on MY2014 models and only on certain trims/lines on certain models.

ASD has been almost completely removed on most models for MY2015. Only M models got it now for sure.

ASD is connected in series with the HiFi OEM amp, and as an add-on in the Top HiFi OEM amp. Meaning, if you unplug the ASD in the HiFi then no audio signal will get to the OEM amp at all. If you unplug the ASD in the Top HiFi system (HK) then no synthesized engine sound will be played thru the OEM amp.

For outside the USA, ASD is connected between the iDrive unit and the OEM speakers. Meaning, ASD powers the speakers directly.

Last edited by Technic; 04-04-2015 at 08:26 AM.
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Old 04-04-2015, 08:07 AM
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Originally Posted by Technic View Post
ASD was widely used only on MY2014 models and only on certain trims/lines on certain models.



ASD has been almost completely removed on most models for MY2015. Only M models got it now.



ASD is connected in series with the HiFi OEM amp, and as an add-on in the Top HiFi OEM amp. Meaning, if you unplug the ASD in the HiFi then no audio signal will get to the OEM amp at all. If you unplug the ASD in the Top HiFi system (HK) then no synthesized engine sound will be played thru the OEM amp.



For outside the USA, ASD is connected between the iDrive unit and the OEM speakers. Meaning, ASD powers the speakers directly.


Interesting. So the 2015 528 no longer has ASD?
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Old 04-04-2015, 08:08 AM
Polite Canuck Polite Canuck is offline
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Well, I certainly have not heard the Sports Line angle before. As plausible as that sounds, I doubt all those people suggesting their MY14 328 loaners sounded better were driving Sport Line.

I'll be putting the trim pieces back together today so I'll try to take better pictures including location of the ASD module. I'll also confirm if the module is visible without having to remove any of the trunk lining.
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Old 04-04-2015, 08:10 AM
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I don't think it has been covered, but if one has it on their car, can it be turned off?
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Old 04-04-2015, 08:11 AM
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Confirmed: MY 2014 F30 328 has Active Sounds

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Originally Posted by BobinIl View Post
I don't think it has been covered, but if one has it on their car, can it be turned off?

Yes it can via coding. There are a few different techniques but the most common is to code the ASD module with a model that doesn't have it. Check out the coding forum for more details
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Old 04-04-2015, 08:26 AM
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Interesting. So the 2015 528 no longer has ASD?
ASD is standard with the MY2015 528i up to 03/15 production. The F10 535i and 550i never got ASD.
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Old 04-04-2015, 08:34 AM
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Yes it can via coding. There are a few different techniques but the most common is to code the ASD module with a model that doesn't have it. Check out the coding forum for more details
For pre-MY14 that does not come with ASD, can the ASD module be plug-and-play DIY without coding?
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Old 04-04-2015, 09:01 AM
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Originally Posted by Technic View Post
ASD is standard with the MY2015 528i up to 03/15 production. The F10 535i and 550i never got ASD.

Very odd that they'd take it away. Cost cutting I suppose.
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Old 04-04-2015, 09:01 AM
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Quote:
Originally Posted by Technic View Post
ASD was widely used only on MY2014 models and only on certain trims/lines on certain models.

ASD has been almost completely removed on most models for MY2015. Only M models got it now for sure.

ASD is connected in series with the HiFi OEM amp, and as an add-on in the Top HiFi OEM amp. Meaning, if you unplug the ASD in the HiFi then no audio signal will get to the OEM amp at all. If you unplug the ASD in the Top HiFi system (HK) then no synthesized engine sound will be played thru the OEM amp.

For outside the USA, ASD is connected between the iDrive unit and the OEM speakers. Meaning, ASD powers the speakers directly.
2015 328i I had as a loaner for two weeks had active sound.
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Old 04-04-2015, 09:04 AM
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Originally Posted by namelessman View Post
For pre-MY14 that does not come with ASD, can the ASD module be plug-and-play DIY without coding?

I don't think it would be plug and play. Pretty sure there would be some coding involved at least of the head unit.But coding is pretty easy to learn and not expensive (just need to buy an enet cable) so I wouldn't let it deter you.
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Old 04-04-2015, 09:18 AM
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Can the volume be changed?
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Old 04-04-2015, 09:50 AM
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Originally Posted by bear-avhistory View Post
Can the volume be changed?

Well, the volume increases in sport mode. And I can't confirm this (haven't tried) but the volume might be affected if you change the engine tuning code via coding in the ASD module. For example, "OL" is the highest tune (corresponds to the n20 in the 328 for examoke) and"UL" is the lowest (320 for example). I haven't seen a parameter directly for volume.
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Old 04-04-2015, 09:55 AM
Polite Canuck Polite Canuck is offline
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Confirmed: MY 2014 F30 328 has Active Sounds

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Originally Posted by namelessman View Post
For pre-MY14 that does not come with ASD, can the ASD module be plug-and-play DIY without coding?

Having seen pictures of other people's F30 trunks, these pre MY14 did not seem to have two sets of wire harnesses (one for the audio amp and one for the ASD), whereas mine does. So. If there is no second wire harness in your car's trunk, I don't see how an ASD module would be Plug N Play. The need for coding or not would take a back seat to the lack of harness.
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Last edited by Polite Canuck; 04-04-2015 at 09:57 AM.
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Old 04-04-2015, 10:01 AM
Polite Canuck Polite Canuck is offline
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Originally Posted by bmw325 View Post
Very odd that they'd take it away. Cost cutting I suppose.

Assuming Technic is correct, and I don't doubt him, perhaps they changed the exhaust design for the MY15 and that makes the ASD redundant? I've certainly not heard anybody say the MY15 sound worse than MY14.
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Old 04-04-2015, 10:13 AM
Polite Canuck Polite Canuck is offline
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Here are a couple more shots showing the location of the ASD module and the two harnesses. Just a note that I did saw off a small part of the OEM steel bracket on which the ASD and OEM amp were attached to make space for my JL amp.


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Old 04-04-2015, 10:23 AM
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Originally Posted by Polite Canuck View Post
Having seen pictures of other people's F30 trunks, these pre MY14 did not seem to have two sets of wire harnesses (one for the audio amp and one for the ASD), whereas mine does. So. If there is no second wire harness in your car's trunk, I don't see how an ASD module would be Plug N Play. The need for coding or not would take a back seat to the lack of harness.
Sounds like a fair assessment. This is similar to the missing alarm wiring harness for units without OEM alarms.
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Old 04-04-2015, 11:05 AM
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Originally Posted by bmw325 View Post
I can't confirm this (haven't tried) but the volume might be affected if you change the engine tuning code via coding in the ASD module. For example, "OL" is the highest tune (corresponds to the n20 in the 328 for examoke) and"UL" is the lowest (320 for example).
Very interesting. If this is the case, it would explain why ASD on my 2014 320i (assuming it's active) is subtle to the point of being imperceptible.

Polite Canuck, thanks again for getting the ASD discussion going as you work on your car's audio system upgrade. Good discussion in this thread!
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Old 04-04-2015, 11:09 AM
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Originally Posted by Polite Canuck View Post
Assuming Technic is correct, and I don't doubt him, perhaps they changed the exhaust design for the MY15 and that makes the ASD redundant? I've certainly not heard anybody say the MY15 sound worse than MY14.
I guess that BMW is just going through their standard cost-saving measures.

To me, ASD is the answer to no question. I mean, ASD standard in models with M Performance exhausts available? Really?
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Old 04-04-2015, 11:30 AM
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Originally Posted by bmw325 View Post
Well, the volume increases in sport mode. And I can't confirm this (haven't tried) but the volume might be affected if you change the engine tuning code via coding in the ASD module. For example, "OL" is the highest tune (corresponds to the n20 in the 328 for examoke) and"UL" is the lowest (320 for example). I haven't seen a parameter directly for volume.
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Originally Posted by gkr778 View Post
Very interesting. If this is the case, it would explain why ASD on my 2014 320i (assuming it's active) is subtle to the point of being imperceptible...
When I test drove a 328i and a 320i last month, the 328i had a satisfying sound and the 320i had no sound. I had not heard of active sound and figured it was just the engines.
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Old 04-04-2015, 11:55 AM
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I guess that BMW is just going through their standard cost-saving measures.

To me, ASD is the answer to no question. I mean, ASD standard in models with M Performance exhausts available? Really?
Which makes you wonder why they added it to the standard F3x cars in the first place. It wasn't as if customers demanded it. As far as I know, they never even marketed it. What was the point in the first place?
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Old 04-04-2015, 12:21 PM
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Originally Posted by Technic View Post
To me, ASD is the answer to no question.
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Originally Posted by krash View Post
Which makes you wonder why they added it to the standard F3x cars in the first place. It wasn't as if customers demanded it.
+1
Perhaps the removal of ASD in MY 2015 non M models (as Technic mentioned) suggests BMW is cognizant of the growing consumer and media backlash against the whole concept of ersatz engine sounds?
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Old 04-04-2015, 01:50 PM
Polite Canuck Polite Canuck is offline
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Which makes you wonder why they added it to the standard F3x cars in the first place. It wasn't as if customers demanded it. As far as I know, they never even marketed it. What was the point in the first place?

As I recall, there was a lot of fuss made over the sound of the N20 being too muted. However, it seems the N55 equipped F3Xs were mostly given ASD, and not so much the N20. So it certainly doesn't make sense.
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