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  #1  
Old 02-22-2019, 12:12 AM
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'06 Lock/Unlock Chirp?

Can anyone confirm 06's make a different unlock/lock chirp? Any info on how you'd go about changing the sound? Coding, new speaker/horn?
Im gonna take a look at realoem, see if I find anything...

Thanks

Last edited by BigBody; 02-22-2019 at 03:23 AM.
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Old 02-22-2019, 10:52 AM
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'06 Lock/Unlock Chirp?

I think it's a little piezo speaker that makes the chirp. It could use the same speaker at the alarm warble though. You could unplug the speaker and lock/unlock to confirm.

I am pretty sure you can turn the chirp on/off with coding but change it, no.
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Old 02-22-2019, 11:12 AM
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I'd do anything to get rid of it on my 2003.
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Old 02-22-2019, 11:23 AM
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I coded mine off of my 05. The horn itself needs to be changed in order to have a different sound.(That's the way it was with my e39 anyway)

You might be able to just remove a fuse tho.
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Old 02-22-2019, 11:25 AM
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Old 02-22-2019, 04:06 PM
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Every '06 ive heard has a more modern chirp. Id love to do the retrofit, but it seems as there is zero information available regarding the chirps. Can anyone confirm which horn exactly is making the noise? If the alarm is the same horn, and it can generate a range of frequencies, i wouldn't be surprised if it was just a simple software adjustment...
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Old 02-22-2019, 04:18 PM
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Not sure it works that way. Switching the horn on an e39 keeps the same alarm sound but changes the "chirp", without any type of coding/reprogramming. That would mean to me that the horn is pre-programmed to make a distinct sound. Just an assumption tho.
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Old 02-22-2019, 04:47 PM
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Quote:
Originally Posted by BigBody View Post
Every '06 ive heard has a more modern chirp. Id love to do the retrofit, but it seems as there is zero information available regarding the chirps. Can anyone confirm which horn exactly is making the noise? If the alarm is the same horn, and it can generate a range of frequencies, i wouldn't be surprised if it was just a simple software adjustment...
The audible alert for lock/unlock is made by the same alarm siren if someone was to break into your vehicle while it is armed. I've never heard any e53 have a different audible alert when locking/unlocking. In fact, the e53 sounds like its generational cousins (e38/e39/e46). The only exception is the early e38 and e39 which had the wolf whistle alert. It sounded something like "a-wee-a-wheet" when locking...and "a-wheet" when unlocking. Around the 1998-99 model year...BMW changed it to the road runner sounding alerts that sounds more like "beep-beep" for locking and "beep" for unlocking. Which is what most e38/e39/e46/e53 owners recognize.


Perhaps a previous owner swapped in one of the early e38/e39 wolf whistle alarm sirens. I believe the electrical harness is the same for all of the aforementioned models...so it could probably be an easy swap in just to change things up.



Personally I hated the wolf whistle so much on my 97 e38...that I actually paid money (back then) to the dealer to deactivate the audible alerts.



And as mentioned above...the audible and visual alerts for lock/unlock can be coded off or on in various ways...see info below about arm/disarm acknowledgments.







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Last edited by Qsilver7; 02-22-2019 at 05:15 PM.
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Old 02-22-2019, 05:38 PM
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Quote:
Originally Posted by Qsilver7 View Post
The audible alert for lock/unlock is made by the same alarm siren if someone was to break into your vehicle while it is armed. I've never heard any e53 have a different audible alert when locking/unlocking. In fact, the e53 sounds like its generational cousins (e38/e39/e46). The only exception is the early e38 and e39 which had the wolf whistle alert. It sounded something like "a-wee-a-wheet" when locking...and "a-wheet" when unlocking. Around the 1998-99 model year...BMW changed it to the road runner sounding alerts that sounds more like "beep-beep" for locking and "beep" for unlocking. Which is what most e38/e39/e46/e53 owners recognize.


Perhaps a previous owner swapped in one of the early e38/e39 wolf whistle alarm sirens. I believe the electrical harness is the same for all of the aforementioned models...so it could probably be an easy swap in just to change things up.



Personally I hated the wolf whistle so much on my 97 e38...that I actually paid money (back then) to the dealer to deactivate the audible alerts.



And as mentioned above...the audible and visual alerts for lock/unlock can be coded off or on in various ways...see info below about arm/disarm acknowledgments.

[/CENTER]
Hi Qsilver,

I was hoping you would see this post and drop some knowledge lol... thanks for clarifying. Yes, I have also never heard an E53 make that distinct whistle. When I met up with Twinspool, who has 525it_Feen's old car, I noticed the distinct chirp. I chalked it up to a modification, as the car was done up (wheels, suspension, spoilers, leds, whatever)... Twinspool had no idea if it was modded or not as the car was new to him. A few days ago, I stumbled upon a facebook video where an owner had the same chirp. Also an '06. At this point, ive come to the conclusion that some (or all?) '06 models have the "wolf whistle" chirp. Interesting to hear this is older BMW spec. Perhaps they ran out of sirens in '06? Anyway, thanks again!
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Old 02-22-2019, 06:00 PM
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Ok, upon review, it is not the "wolf whistle". If this in fact is the wolf whistle: https://www.youtube.com/watch?v=Iz0vV8DSsDo

Ive uploaded a piece of the video that was posted by a member on FB. Another person has confirmed they also have the exact same chirp...
Have a listen (sorry for the loud music, video is not mine):
https://www.youtube.com/watch?v=3OCp09CqqyE
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