My Passat got broken into - car alarm did not go off
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  1. #1
    tdb
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    My Passat got broken into - car alarm did not go off

    Someone smashed the front passenger window out and stole my iPod.

    To my surprise, the car alarm did not go off. I guess the alarm is only for the doors? That sucks!!

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    Motel Room Moderator VAGguy's Avatar
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    Unless you upgrade to one witha shock sensor, all factory alarms are like that. Here's a tip, hide your ipod.

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    Wow. I didn't realize it was that useless - so what actually trips it? Just opening doors from inside? Will a slim jim trip it? Are a lot of car alarms like that?

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    Motel Room Moderator VAGguy's Avatar
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    opening the door while armed does it. ALL factory alarms not equipped with a shock or motion sensor are like that.

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    Plus a slim jim won't unlock a B5's door. As stated above only opening the doors, hood, or trunk will trip it. It's also far from useless since the immobilizer will keep anyone from stealing it.

  7. #6
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    The CCM in US cars only monitors door lock state. If the door is manually unlocked without use of the key or remote, the alarm will sound. This includes using a device like a Slim Jim. Also worth noting are that the interior lock/unlock buttons are disabled when the alarm is armed, so the only way to open the door would be to manually unlock it which would trip the alarm. If you have bad door lock modules, your alarm is fairly useless. If the CCM doesn't see the door unlock, it won't sound the alarm.

    Some Euro countries have a sonar interior monitoring system, that would be entirely more effective against glass breaking and entry. But I don't know for sure whether the sonar is used for motion detection or glass break detection. When I worked at ADT, sonar glass break detection was very common, and sonar motion detection wasn't but it was still used in certain places where infrared detection is unsuitable (lots of windows around). Information that I've read suggests VW's sonar interior monitoring is for motion detection, however glass breaking should disrupt the sound signature enough to trip the alarm.

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    How would you unlock the car without the key? There is no rod to use a slim jim on.

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    Quote Originally Posted by TheAmazingDave View Post
    The CCM in US cars only monitors door lock state. If the door is manually unlocked without use of the key or remote, the alarm will sound. This includes using a device like a Slim Jim. Also worth noting are that the interior lock/unlock buttons are disabled when the alarm is armed, so the only way to open the door would be to manually unlock it which would trip the alarm. If you have bad door lock modules, your alarm is fairly useless. If the CCM doesn't see the door unlock, it won't sound the alarm.

    Some Euro countries have a sonar interior monitoring system, that would be entirely more effective against glass breaking and entry. But I don't know for sure whether the sonar is used for motion detection or glass break detection. When I worked at ADT, sonar glass break detection was very common, and sonar motion detection wasn't but it was still used in certain places where infrared detection is unsuitable (lots of windows around). Information that I've read suggests VW's sonar interior monitoring is for motion detection, however glass breaking should disrupt the sound signature enough to trip the alarm.
    I had my car locked and forgot to put my window up so my friend unlocked it with the door switch inside and it unlocked the doors...is my alarm broken? I can set it off with the panic button on my remote...but I've never got it to go off before.

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    Well, to be honest, I don't know for sure about B5's if that's what you have. B5's have a 1J0 CCM which may have different alarm programming. Cars with 1C0 CCMs (all B5.5's) should disable the interior lock buttons and sound the alarm as soon as the door is unlocked.

    edit: also, the alarm must be armed. If the doors are just locked without the alarm, the interior buttons still will work.

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    Quote Originally Posted by quality_sound View Post
    How would you unlock the car without the key? There is no rod to use a slim jim on.
    True about the slim jim, but you can use those air bladders that slip between the door and the frame and inflate, pushing the top of the door back. This creates plenty of access to reach in there with a long bar, and the door handle can be pulled with a hook formed in the end of the bar. Unfortunately, I know this from experience, and it was way too easy.

  12. #11
    Motel Room Moderator VAGguy's Avatar
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    I just tried with my 04 b5.5. Buttons on the door are disabled when the alarm is armed.

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    Quote Originally Posted by TheAmazingDave View Post
    Well, to be honest, I don't know for sure about B5's if that's what you have. B5's have a 1J0 CCM which may have different alarm programming. Cars with 1C0 CCMs (all B5.5's) should disable the interior lock buttons and sound the alarm as soon as the door is unlocked.

    edit: also, the alarm must be armed. If the doors are just locked without the alarm, the interior buttons still will work.
    I see. Well my car puts the alarm on every time I lock the doors so there's no way it could have been locked with no alarm. The little light on the drivers side door flashes so I'm guessing it's on—it just didn't go off.

    Quote Originally Posted by VAGguy View Post
    I just tried with my 04 b5.5. Buttons on the door are disabled when the alarm is armed.
    Thanks. My car is a B5.

    Sorry tdb for your thread!

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    Quote Originally Posted by TheAmazingDave View Post
    True about the slim jim, but you can use those air bladders that slip between the door and the frame and inflate, pushing the top of the door back. This creates plenty of access to reach in there with a long bar, and the door handle can be pulled with a hook formed in the end of the bar. Unfortunately, I know this from experience, and it was way too easy.

    Does that really work? I thought the handle was disabled when the door was locked?

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    Quote Originally Posted by ElliottG View Post
    I see. Well my car puts the alarm on every time I lock the doors so there's no way it could have been locked with no alarm. The little light on the drivers side door flashes so I'm guessing it's on—it just didn't go off.
    When you get your VAG-COM, use the measuring blocks in the CCM to check if the doors are reporting their current state properly to the CCM.

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    Quote Originally Posted by quality_sound View Post
    Does that really work? I thought the handle was disabled when the door was locked?
    Works all to well. I locked my key in the engine compartment at a gas station while checking my oil, right after getting home from Santa Barbara a few months ago. I tried every last option, sans a locksmith (no money to spend at the time, way too expensive to have an emergency key cut), to get back into the car. I finally called Verizon Roadside Assistance and they sent out a lock-out specialist.

    Dude slipped two bladders between the door and car, one on each side of the top corner. He pumped them both up, giving himself about a 1 inch gap to work with. He then slipped in a long rod with a hook on one end and a handle on the other. I saw he was trying to press the unlock button, when I told him it's disabled when armed, he said "oh" and grabbed the release handle with his bar instead. Before the door even popped, the alarm sounded, but the door did open just as it would if you pulled it from the inside when locked without alarm. He had the car open in less than 5 minutes, including the time it took to grab his tools.

    The mechanics of the lock module don't care if the alarm is armed or not.

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    I said armed but I meant locked. Since the outer handle is disabled with the door locked I thought the inner was as well.

    That's good info Dave.

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    even if you did have alarm your window would still be broken and more than likely your ipod would be gone as well

    heres a better tip

    hide your ipod + don't leave your car in shady areas

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    double post :

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    Quote Originally Posted by ElliottG View Post
    I had my car locked and forgot to put my window up so my friend unlocked it with the door switch inside and it unlocked the doors...is my alarm broken? I can set it off with the panic button on my remote...but I've never got it to go off before.
    I don't think the alarm arms itself when the windows are down.

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    Quote Originally Posted by quality_sound View Post
    I said armed but I meant locked. Since the outer handle is disabled with the door locked I thought the inner was as well.

    That's good info Dave.
    I'm glad it's not... that would be a safety hazard.

    SirWired

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    Quote Originally Posted by UrbanLegend View Post
    I don't think the alarm arms itself when the windows are down.
    Alarm will arm itself with windows down - what about those hot summer days. Inside handles do work with it armed - will go off if you open door even from inside. Buttons may be disabled - I am not certain. A partially closed (not completely shut) door will trigger alarm if it was set and you open the door.

  23. #22
    I'm just itching to be Banned NEWMAN'SOWN's Avatar
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    Also I don't know if anyone is familiar with this problem, but the b5 and b5.5 have really weak handle areas. People who know the cars will just put a metal bar inside and yank out the whole assembly, granting them full access to your car. This only takes seconds to do. Although it would set your car alarm off, what good does it do? How many people pay attention to a car alarm, and want to risk their personal safety to save your things?!? The best thing you can do is prevent it by keeping all valuables out of sight to begin with.

  24. #23
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    Quote Originally Posted by NEWMAN'SOWN View Post
    Although it would set your car alarm off, what good does it do?
    That's why I replaced my wounded goose with the OEM siren instead of a generic siren. The Germany tone is simply obnoxious, and I hope it will draw more attention than the all-too-common multi-tone sirens or honking horns out there.

  25. #24
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    Wow...that sucks! Yeah, gotta lock up the iPod or anything else of value like CDs, jackets, etc. I'll have to remind the wife to keep her iPod in her purse or locked up in the glove compartment.

  26. #25
    tdb
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    Actually, my iPod was locked in my glove box and they broke open my glove box to get to the iPod. I had nothing visible in my car for a thief to steal other than a half empty bottle of water. Just bad luck on my part.

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    damnit, woke up this mornign to see my passenger side window broken as well

    weird they didn't steal anything even though i found the front of my stereo deck on the chair, thank god they didn't take it...

    was just wondering how much did your window cost? i assume you can only get it from the dealer?

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    Quote Originally Posted by tdb View Post
    Actually, my iPod was locked in my glove box and they broke open my glove box to get to the iPod. I had nothing visible in my car for a thief to steal other than a half empty bottle of water. Just bad luck on my part.
    It seems silly that someone would go through that much effort to only take an ipod. Do people normally leave valuable things in gloveboxes? I usually take with me what i wouldn't want stolen. But that's just me. Still a bummer though. Maybe they knew you?

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