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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 05-01-2010, 09:34 PM   #1
tranceasia8
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$5 Alternative for Lock beep

***Update for video clip and siren test!!***
Hey guys this is my first DIY so please dont burn me too bad lol.
Pics taken from my phone, ill get some better ones up soon.

I got the idea from the GodsSon lockbeep thread.
http://forum.e46fanatics.com/showthr...ight=lock+beep


This is just a more simplified process and is just for entertainment.

***UPDATE***

After speaking with a tech at the dealership. They confirm that this will only work with vehicles ARE programed to flash. It usually cost about $60 to have them do it.

Sorry for not putting that info out there sooner.
My vehicle is already programmed to flash the lights and the clown nose. If yours isnt programmed it can be done at the dealer.


List:

T-30 torx
Electronic buzzer- Radio Shack 90dB Piezo Pulse Model: 273-060



Time: 45 minutes easy DIY


Step one:

Remove the twist clips holding down the cover to the cabin air filter. Remove cover and filter.


Step two:
Remove (4) T-30 torx screws holding the filter tray and carefully separate the wire harness from the loom.


Step three:
Remove (2) torx screws holding the protective cover for the blend air box. There is one to the left side by the A/c charging port and the other by the DME.



Step four:
Locate pre-wired alarm siren plug. Usually taped to the left side.



Step five
Locate Black wire w/ Blue stripe far left, bottom hole.
Then locate Brown wire w/ Black stripe left upper hole.

Step six:
Pin the ground wire into the lower left hole.
Pin the positive wire into the upper left hole.


~~~ Test your key.
CAR SHOULD BEEP TWICE TO UNLOCK.
(NOTE) YOU MUST HOLD DOWN THE HOOD TRIGGER TO HEAR IT BEEP ONCE AND LOCK!

Step seven:
After deciding where you want to mount your buzzer mount it down with double-sided tape this is where I mounted mine.
** Switch for a bigger buzzer so that the sound is louder***



Step eight:
Put everything back together and enjoy.
if you got any questions please feel free to ask.
Thanks





****Bonus!! Buzzer/ siren doubles as an alarm*******

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$5 Lock Beep DIY- http://forum.e46fanatics.com/showthread.php?t=761104

Last edited by tranceasia8; 05-05-2010 at 08:54 PM.
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Old 05-01-2010, 10:17 PM   #2
delmarco
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Awesome DIY!!!!

Do you have a video clip of how the beep sound in terms of loudness?
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Old 05-01-2010, 10:19 PM   #3
tranceasia8
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Originally Posted by delmarco View Post
Awesome DIY!!!!

Do you have a video clip of how the beep sound in terms of loudness?
thanks, ill try to get a clip up tomorrow.
It can still be heard through the covers but just not as loud as the OEM alarm.
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Old 05-01-2010, 10:26 PM   #4
eneka
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nice. How does it sound? Does it sound like the one in the link you posted?
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Old 05-01-2010, 10:32 PM   #5
tranceasia8
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nice. How does it sound? Does it sound like the one in the link you posted?
yes it sounds just like that. Just easier to install lol
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Old 05-02-2010, 02:26 AM   #6
Cazz
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Nice mod.
Put this in the "Free mods / cheap mods under $10 DIY" thread.
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Old 05-02-2010, 02:33 AM   #7
miiikey31
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thats cool imma try it on my car
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Old 05-02-2010, 08:01 AM   #8
Mike@F1 AutohaŘs
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Nice!

So what happens when the car goes off?
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Old 05-02-2010, 08:52 AM   #9
Hartman
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Wow I may give this a try
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Old 05-02-2010, 12:57 PM   #10
Cazz
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nice. How does it sound? Does it sound like the one in the link you posted?
Here is a video I found of a radio shack buzzer on a different car.

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Old 05-02-2010, 04:24 PM   #11
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That sounds way better than I thought it would.
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Old 05-02-2010, 07:38 PM   #12
tranceasia8
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Originally Posted by Mike@F1 AutohaŘs View Post
Nice!

So what happens when the car goes off?
It will beep and stay on until your car is disarmed. Now if you opt to use a 2-tone or a pulsing siren it will go off just like any other alarm.

Both can be found at your local Radio Shack.

Quote:
Originally Posted by Cazz View Post
Here is a video I found of a radio shack buzzer on a different car.


Thanks Cazz for posting the video clip. It sounds exactly like that
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Old 05-02-2010, 08:32 PM   #13
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Best DIY of the year!!!! Huge thanks for looking in to this!!! In for vids btw...
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Old 05-02-2010, 09:07 PM   #14
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whats the db level on the video?
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Old 05-02-2010, 09:13 PM   #15
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Does this make the lights blink as well?
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Old 05-02-2010, 09:23 PM   #16
Little Dragon
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Does this make the lights blink as well?
No, you must program your lights to do so.

Hey OP, is the sound in sync with the flashing lights when it locks/unlocks?
My car is already programmed to flash and the clown nose flashes as well.
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Old 05-02-2010, 09:29 PM   #17
bimmerman25
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really cool diy ill prolly try it seeing as mine doesnt even make a noise lol
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Old 05-02-2010, 09:37 PM   #18
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whats the db level on the video?
Radio Shack says the buzzer in the video is 76 dB. I'm assuming that is before putting it inside of the engine compartment. They also have buzzers with higher dBs ( 80, 85, 90, 95 100, 108, etc.) and a 102 dB piezo siren (search on youtube for a video of this one on a Harley).
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Old 05-02-2010, 09:46 PM   #19
tranceasia8
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the beeps will be in sync with your lights if your vehicle is programed.

I ended up switching the smaller 50db buzzer in the pic out for a larger buzzer putting out 90db. Its pretty loud even when you mount it behind the covers.
Basically the mounting location will effect the sound, IMO anything over 70db should be loud enough to confirm that your vehicle is locked/ unlocked
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Old 05-02-2010, 10:13 PM   #20
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very cool mod
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