Anyone got experience with these GPS/GSM trackers
Anyone got experience with these GPS/GSM trackers
It would be cool if there was a way to trigger the car's limp mode
Using it to disconnect something like the map/maf sensor would put the car in limp mode won't it?
Sparkystav Using it to disconnect something like the map/maf sensor would put the car in limp mode won't it?
Sparkystav Using it to disconnect something like the map/maf sensor would put the car in limp mode won't it?
yeah it should do what you have to weigh up with any type of kill switch it will most likely cut all power as in the name kill switch but this would also effect brakes and steering and thus could do more damage to the car if they crash it due to such kill switch.....
other option is some serious sound bombs mounted in the car and engine bay etc you could activate them which would draw huge amounts of attention to the car if they steal it....
But you can make it yourself with two small aubergines...
Do what your low-rent terrorists do and connect a low voltage relay to the vibrate motor output of a mobile phone:
http://davehacks.troublem8ker.com/wordpress/?p=4
Connect that low voltage relay to the coil of a latching relay circuit:
http://www.eleinmec.com/article.asp?24
Use one of the green (single pole, double throw) relays rather than the yellow (single pole, single throw) relays. The "normally closed" contacts are what the car is connected to. When the latching relay fires it disconnects those and it'll stay disconnected until the car battery runs flat or you hit the disconnect switch.
You could connect horn and lights to the "normally open" contact, but I wouldn't. Just connect the rear lights, and to some weirdo flashing pattern.
Can also create an "electrical fire" by using the "normally open" contact to short the battery across a long length of heavily insulated but light gauge wire inside some sort of fireproof but not smellproof canister. (a fire bucket made of thick stainless mesh loacted near the heater inlet/inside the heater box) Tricker inside a modern car than old classics as there are actually things that might catch on fire LOL. When lots of acrid electrical smoke pours out and the car stops "alarm" isn't usually the first thing that comes to mind, or "quick, torch it to hide the evidence"
Then find out roughly where the car is using one of the PAYG services. (register first)
http://www.childlocate.co.uk/
http://www.followus.co.uk/homeusers.html
If your jock-off great Alsatian tears the thief's head off before you manage to stop him that's far less of a problem than you causing them serious injury in self-defence.
In all seriousness though, think about why its being nicked. If its a classic going for scrap/bangers, just finding out roughly where it is is good enough. If its something being joyridden, how likely are they to torch it to hide the evidence before you can get to it; versus it being crashed almost immediately; vs just calling in the police to look for your car "somewhere in this area" - oh, and for your convenience the alarm is flashing the rear indicators/fogs/brake lights/reversing lights in a crazy pattern.
Fire bad - nothing is saved. Crash bad - but not as bad as fire. DIY find - satisfying but will you keep your cool/hide the bodies well enough to avoid time at her majesty's pleasure, or will you return home 6 months later to find all your cars and your house on fire once they've been let out on good behaviour? Police find, given an approximate location and a strange set of flashing lights - probably the lesser of all evils.
One question I have though is that isn't the Mercedes standard security system pretty good? I know there are no deadlocks, but other than that they're pretty secure and the only real way of taking the car is with the key or on a trailer?
Parthiban is correct Merc alarm/immobilisers are Cat 1, very hard to get past without the keys, which is why keys are stolen 1st. The weakest link is the key and where its put at night.
you can of course add a secondary security feature to the car a personal immobiliser or hidden switch biometric etc.
if your main aim is to have it track the car maybe turn on features then fair enough, you could have it to operate wig wag headlights and tail lights this would draw attention to the car in the event that you notice its been stolen......
Prevention doesn't always work though? Sometimes worse than not - once they've had a go they'll want to hide their tracks:
http://www.mx5nutz.com/forum/index.php?s...87428&st=0
Sending Doc Brown back in time with a condom for their father is the best option for catching them before they've torched it, crashed it, or broken it for spares. Eugenics got a bad name courtesy of Hitler though.
2tongues Parthiban is correct Merc alarm/immobilisers are Cat 1, very hard to get past without the keys, which is why keys are stolen 1st. The weakest link is the key and where its put at night.
2tongues Parthiban is correct Merc alarm/immobilisers are Cat 1, very hard to get past without the keys, which is why keys are stolen 1st. The weakest link is the key and where its put at night.