F55/F56 How to Defeat Active Sound Design (ASD)
Just use the Technic bypass harness because when they code it out it reinstalls every time there is an upgrade and the recode costs more than the harness that still sees it in the CANBUS.
Completely replaced the HK amp and speaker in my MCS. I had a harness that I made and it was cutting out on one channel. So I took it off and plugged in the ASD while I found the problem wire. The car sounded like it was a race car on the inside. Very, very noisy as the ASD is tuned to run with the stock radio or HK system.
Just to make sure I'm getting it (dont get mad plz), disabling/unplugging the ASD made it sound like a race car inside, correct? So would that be the same result if you code it out? Would just patching after the ASD (w/o disabling it) avoid this problem?
If you use an aftermarket amp and don't bypass the asd it will disproportionately amplify the fake engine sound.
OVERDRIVE
Joined: Jun 2014
Posts: 5,391
Likes: 576
From: earth PNW
For future reference, dealer SA either didn't know what I was talking about or refused to even consider the request. Bought cable, failed on first attempt to code it out, but second try I was more acclimated to the software and done in 10 minutes. Much prefer the quiet of no ASD.
OVERDRIVE
Joined: Jun 2014
Posts: 5,391
Likes: 576
From: earth PNW
Quieter cabin, some like that (me) and others prefer the noise. Didn't realize how much I disliked it until it was gone.
4th Gear
Joined: Apr 2016
Posts: 395
Likes: 101
From: Merritt Island, FL
Quieter cabin, some like that (me) and others prefer the noise. Didn't realize how much I disliked it until it was gone.
4th Gear
Joined: Apr 2014
Posts: 377
Likes: 41
From: Buffalo, NY
I think the fake sound exists to cover up the insane noise the runflats make. 
I turned off the ASD in my car because I prefer to hear what the engine is actually doing and man are the runflats deafening and I only have 6k on them.
I turned off the ASD in my car because I prefer to hear what the engine is actually doing and man are the runflats deafening and I only have 6k on them.
OVERDRIVE
Joined: Jun 2014
Posts: 5,391
Likes: 576
From: earth PNW
Run your vin# with Bimmer.work . My HK build was option 674. Of course they keep tweaking all the components so one year doesn't always sound the same as the next. You can see all the amp revisions if you look on realoem.com for your car.
6th Gear
Joined: Apr 2015
Posts: 1,331
Likes: 165
From: Bonita Springs Florida
Good going. I assume my R56 doesn't have this feature. I'm curious as to how people like the sound of it. It's weird to me that while you are playing music (which I do a lot), the input is also playing fake engine/exhaust sounds at the same time. I assume the volume of the fake sound doesn't go up when you turn up the music, so maybe the music drowns it out at high volume. I know my exhaust fake burbles are louder in the Sport Mode and almost nonexistent in normal mode.
Certainly understand those that would disable it to actually hear their car.
1st Gear
Joined: Aug 2017
Posts: 19
Likes: 0
From: California
I drive in green mode when I want to hear the stereo and talk at conversation level. Would be nice to be able to turn ASD off in the car settings. After driving a MX5 with sport exhaust, I'd rather hear the actual engine much of the time,
ASD reminds me of being a kid in the early 80's with an electronic engine noise twist grip on my bicycle lol.
ASD reminds me of being a kid in the early 80's with an electronic engine noise twist grip on my bicycle lol.
