Car Alarm Going Off!!!
Car Alarm Going Off!!!
Last night at about 1 am my alarm starting going off for no reason. After running outside with angry looks from neighbors I shut it off. Then soon after, I was awakened from bed to hear it again, and again. About 6 or 7 times it just went off for no reason. Once with me just looking at it from inside the house, no one was tampering with it. And it was parked on a level ground... the same place it is every night.
I discovered disconnecting the battery will not shut the alarm off, must have a separate source. It was very humid here last night if that has anything to do with it, (and it was very humid a couple weeks ago when the same thing happened).
I finally just left the doors unlocked all night to prevent the alarm from activating again.
Anyone else have this problem? Its driving me and my neighbors nuts!!!
I discovered disconnecting the battery will not shut the alarm off, must have a separate source. It was very humid here last night if that has anything to do with it, (and it was very humid a couple weeks ago when the same thing happened).
I finally just left the doors unlocked all night to prevent the alarm from activating again.
Anyone else have this problem? Its driving me and my neighbors nuts!!!
Re: Car Alarm Going Off!!!
Kev, What is the status on your alarm? My new crossfire is supposed to be here tomorrow. I will tell you that after 12 weeks in the shop they still have no idea why my alarm keeps going off. But i have convince Chrysler to do a buy back that's why i am getting a new one.
65fish
65fish
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Re: Car Alarm Going Off!!!
chxf - I'm having the same problem as others above. As you suggested, until I can get in to the dealer, I pulled the fuse. I now have to manually lock the car with the key. No big deal! I would prefer to use my key fob remote but the absence of the fuse, I guess, prevents that. I'm a zero when it comes to electrics and computers. Seems like there should be a way to unhook (electrically) the alarm. Anybody have any ideas? I can't even FIND the alarm so, I need help there too.
Thanks, Jim
Thanks, Jim
Re: Car Alarm Going Off!!!
chxf - I'm having the same problem as others above. As you suggested, until I can get in to the dealer, I pulled the fuse. I now have to manually lock the car with the key. No big deal! I would prefer to use my key fob remote but the absence of the fuse, I guess, prevents that. I'm a zero when it comes to electrics and computers. Seems like there should be a way to unhook (electrically) the alarm. Anybody have any ideas? I can't even FIND the alarm so, I need help there too.
Thanks, Jim
Thanks, Jim
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Re: Car Alarm Going Off!!!
In all probabilities the old siren will be toast, which is what is causing it to go off. You can replace it with a Benz siren that beeps when you lock/unlock the car, for about $90. I can get the part number if you need it.
I am assuming this because the car still locks/unlocks with the fob.
If you haven't already, do yourself a favor and remove the plug from the passenger side trunk recess (from below)
Another cause of the alarm going off at random, is the central locking pump being submerged in water, due to a leak into the trunk.
Mine got full of water when I was out of town, sounded the alarm, and flashed the lights for so long that that the battery eventually went flat, locking me out.
Anyway it's piece of mind to check the trunk well for water, and if none present, a change of the siren should be all you need.
I am assuming this because the car still locks/unlocks with the fob.
If you haven't already, do yourself a favor and remove the plug from the passenger side trunk recess (from below)
Another cause of the alarm going off at random, is the central locking pump being submerged in water, due to a leak into the trunk.
Mine got full of water when I was out of town, sounded the alarm, and flashed the lights for so long that that the battery eventually went flat, locking me out.
Anyway it's piece of mind to check the trunk well for water, and if none present, a change of the siren should be all you need.
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Re: Car Alarm Going Off!!!
magredvet - Thank you for your input. I would appreciate the Mercedes part number for the alarm, if it's convenient for you to find. Did you have to change any of the wiring? If it's a straight swap, with the existing wiring, it sounds perfect for me. I've heard rumors, and that's what they were, that you need a different wiring harness to install the Mercedes alarm.
I looked under the hood the other day and couldn't even see the alarm. On the firewall there is a opening with something red behind the opening, and as best as I can tell, it has the VIN on it.
I've built several street rods in my life, and a couple of race cars as well. The electronics on those vehicles were very simple. This is a new adventure for me. I'm 79 and I refuse to give up! Especially since I keep telling myself that I'm 39 and I can do anything. Well, almost anything.
Thanks again,
Jim
I looked under the hood the other day and couldn't even see the alarm. On the firewall there is a opening with something red behind the opening, and as best as I can tell, it has the VIN on it.
I've built several street rods in my life, and a couple of race cars as well. The electronics on those vehicles were very simple. This is a new adventure for me. I'm 79 and I refuse to give up! Especially since I keep telling myself that I'm 39 and I can do anything. Well, almost anything.
Thanks again,
Jim
Join Date: Nov 2017
Location: Alexandria, Kentucky
Age: 85
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Re: Car Alarm Going Off!!!
onehundred80 - I'm unable to get any of your photo's. You can email me at jpmlholian@aol.com if that is convenient for you. I just can't seem to see the alarm.
Jim
Jim
Re: Car Alarm Going Off!!!
onehundred80 - I'm unable to get any of your photo's. You can email me at jpmlholian@aol.com if that is convenient for you. I just can't seem to see the alarm.
Jim
Jim
The photos are in the PDFs.
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