09-05-2016, 05:10 PM | #1 |
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disabling ASD
Recent owner of a 2014 235i. I was searching the forums on ways to disable the ASD, and came across 2 options - technicPnP harness and via coding.
However, upon digging into ISTA/D (Rheingold), I saw two other options, which seem much simpler. 1. Per documentation attached, seems like disconnecting any speaker should disable ASD. Several members here have disconnected the center speaker on their HK systems - Have you verified if that disabled ASD? 2. There is a "muting ASD on" option in the ASD ECU in Rheingold. I enabled the option. Is there an easy way to tell if ASD has been disabled? |
09-05-2016, 05:28 PM | #2 |
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Not sure on the other options. I've opted for the Technic harness which physically isolates the ASD module from the speakers. Others have reported that disabling it via coding turns off the ASD sound, but leaves it in the path, which leaves the audio anomalies the ASD module generates present. I'd go with the harness. Easy way to check is to get on the highway, set the cruise at a set speed, 60mph perhaps? Then switch back and forth between comfort and sport, you should be able to hear the ASD kick in, even though there's no change in engine RPMs.
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09-05-2016, 06:57 PM | #3 | |
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09-05-2016, 08:57 PM | #4 |
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Disconnecting the centre speaker did not disable ASD. I don't see where in that documentation it says anything of the sort, but if it does ... it's wrong. I disconnected my centre speaker and still had ASD. Bypassed it using Technic's harness.
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09-05-2016, 10:12 PM | #5 | |
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"At every engine start (pure electrical driving mode or driving mode with combustion engine), the ASD control unit checks whether all speakers, including acoustic sensors, are connected. If a speaker is detected as disconnected, the ASD control unit switches the ASD function off completely. Not until all speakers are detected as connected does the ASD control unit release the ASD function." The documentation is from the software the dealers use for diagnosis, so I'd be very surprised if the documentation was wrong - likely that i'm reading it incorrectly. I'll report tomorrow whether turning mute ON in the ASD ECU helped. |
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09-06-2016, 10:47 AM | #7 |
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this is very interesting.
boot up detection is possible and is consistent to what i found when removing/reinstalling the center speaker. A true reboot is necessary in order to reactivate the previously removed center speaker |
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09-06-2016, 11:36 AM | #8 |
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sorry, I'm not following you - Are you saying you did notice that ASD was disabled when you disconnected the center speaker?
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09-06-2016, 11:40 AM | #9 | |
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BTW, during my commute today on the highway, I switched from comfort to sport and back several times (at about 60 - 65 mph). All I noticed was a rpm increase (or decrease when going from comfort -> sport) and a mild growl that accompanied it -- seemed quite different from the over-the-top engine growl that I used to get previously when I moved from comfort -> sport. Looks like ASD has indeed been turned off. I'll turn muting off in the ASD ECU in Rheingold and test to see if the loud artificial growl is back. |
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09-06-2016, 07:16 PM | #10 | |
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Previous: 2018 Camaro 2SS 1LE 6MT; 2015 BMW M235i 6MT; 2015 Mini Cooper F56 6MT; 2005 Mustang GT 5MT; 2003 Mini Cooper R50 5MT |
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09-07-2016, 04:47 AM | #11 | ||
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If you want to see if ASD is still there, pull the shifter left (moving to transmission manual/sport mode), upshift to 8th gear with cruise set on the highway, and THEN do the switch between Sport/Manual using the switch. In that case, the RPM won't change.
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09-07-2016, 12:19 PM | #12 |
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09-07-2016, 12:20 PM | #13 | |
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09-07-2016, 03:03 PM | #14 |
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The TecnicPnP harness is the only way to go, all of that racket is gone and the HK radio sounds better too. The one thing that I didn't expect was that any/all exhaust drone that I thought I was hearing all went away with that stupid ASD.
(what were they thinking) I would recommend it to all, so far the best and cheapest improvement you can make to your car. |
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09-07-2016, 04:03 PM | #15 |
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Option 3:
If you have JB4 you can disable it through the dash menu.
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09-07-2016, 06:48 PM | #16 |
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Sorry, this shows my ignorance regarding automatics. Never owned one in 40 years of driving!
If you're using cruise control with a manual, there will be no rpm change when changing modes between Sport and Comfort. Didn't realize that changing modes with an automatic while in cruise will change gears... ugh. You can also do the ASD test in your driveway. Get rpms to 2000 or so and switch modes.
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09-08-2016, 04:30 AM | #17 | |
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I got the below information from JB4's website. OBDII In Dash Menu '*************************************** '0 map menu, map shown on tach. Note map guide above. '1 Not used for this model '2 Boost gauge on fuel, boost is shown in the fuel gauge under heavy throttle with empty being 0psi boost and full being whatever you've assigned to your boost failsafe PSI on the user adjustment page. Default is 18psi. To enable this feature move the tach from 0 to 1. '3 LED MAX brightness mode. For those with factory LED headlights this option brightens HALO during nighttime operation. To enable this feature move the tach from 0 to 1. '4 OBDII Diagnostic Code Delete '5 1st gear boost limit setting. 0-7000rpm = 0-20psi. '6 2nd gear boost limiter '7 3rd gear boost limiter |
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09-08-2016, 10:03 AM | #18 | |
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09-08-2016, 09:54 PM | #19 |
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09-08-2016, 09:58 PM | #20 |
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Tested with center speaker removed.
I kept changing back and forth from comfort to sport. RPM is constant and ASD cannot be disabled. You don't need cruise control or anything to do this test. It's extremely obvious. |
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09-09-2016, 08:30 AM | #21 |
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How did you get the rpms to stay constant when switching modes without doing anything different? I was unable to get it to stay unchanged except when I did the upshift-to-8th-in-manual trick.
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09-09-2016, 10:07 AM | #22 | |
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I've tested it multiple times. Takes 15 seconds for me to switch it on and off. 0 map menu, map shown on tach. Note map guide above. '1 Not used for this model '2 Boost gauge on fuel, boost is shown in the fuel gauge under heavy throttle with empty being 0psi boost and full being whatever you've assigned to your boost failsafe PSI on the user adjustment page. Default is 18psi. To enable this feature move the tach from 0 to 1. '3 LED MAX brightness mode. For those with factory LED headlights this option brightens HALO during nighttime operation. To enable this feature move the tach from 0 to 1. '4 OBDII Diagnostic Code Delete '5 1st gear boost limit setting. 0-7000rpm = 0-20psi. '6 2nd gear boost limiter '7 3rd gear boost limiter
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