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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz C-Class (from 1993 to 2000, the year of issue)

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Mercedes-Benz C-class
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Defend your own car
Anti-theft "immunodeficiency"
Why dim lights
"Galogenki"
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Anti-theft "immunodeficiency"



The lock is passive, the better

No immunity from theft. If the price of the car can be folded, it is potentially a commodity, and therefore - and the object of theft. What could be stolen, stolen will. The only question is where and when.

The most perfect remedy are electronic systems - burglar alarms and anti-theft devices. The first task - to inform about the hijacking and trying to have a psychological impact on the thief. But that sense of it, if the car is on the street, and bedroom windows overlooking the yard ?! Even time work, she passers does not cause anything but irritation. The thief also not very "hvylyuetsya", knowing that worked just pop gun. In the meantime, the owner put on sweat pants and go down the elevator, you can manage to get up to the Canadian border. Therefore alarm american style so popular in the CIS countries in Europe do not apply. After all, with false positives owner would have to pay for all trips on the scene police squads. Fortunately (in this sense), our police siren on the car reacts very rarely. In her call runs only the owner, forced to first ensure that the alarm is false, and only then call the police. And in anticipation of it - try to discourage car. Protivougonki much more effective, harder and more expensive at the same time.

Abroad, the best advertisement for the alarm system is the recognition of its association of insurance companies. Otherwise meddle in the market it is not necessary. And it did not go from "them," Now we flooded the market. We have such an association is not, so insurance companies are forced to spend their own expertise.

We summarize some of the demands put forward - select the basic components of systems on the level of protection and to evaluate their effectiveness.

Systems admission into the cabin and the engine is started

The keys

Inter owner if falling into the wrong hands. The recently castles of Tlris - is no exception. Recall there is mounted a key coded chip without power supply, the castle respectively reader (radioschityvatel) periodically requesting the key. If microchip identified, the system turns off the alarm and unlock the drive. Alas, Tlris only protects against counterfeit keys and master keys.

Keychain remote control

Uses an infrared, radio or ultrasonic link. It is convenient, but can also bring. And if the battery has, it creates some problems: either to put the car on guard or withdraw from it, or unlock the drive. And, at the most inopportune moment. And many have already been hijackers own car.

The system fails if enabled nearby jammer - a broadband noise generator or the like. And the means of opening - scanners, grabbers, etc. It has slightly less than the systems themselves.

Card or key Tlris

The thing is even more convenient. While is within range of the reader, automatically confirms the right to start the engine and driving. If the connection is lost (the driver left the car with the card), the engine is automatically muted. Do not distract the user and provides maximum comfort. But, like other tangible media password, allows unauthorized access, once a thief.

Trying to get a maximum of comfort, using multiple media Tlris, often leads to a result directly opposite - their conflict at the next reading, and the protection is activated.

Inlaid password

The secret services of this kind of tolerance is considered the most secure. There are two disadvantages - it is necessary to remember the password and enter it. But cars with similar systems much less tolerance hijacked. And no password is harder than dial a phone number. That is why many are already beginning to combine the low-cost system of signaling and protivougonki to set a password for access. And manufacturers have time to adjust their production quickly. In modern prestige cars this mode include a program standard on-board computer.

Systems that require a password when starting the engine

Otherwise, the engine will be turned off when the first braking or reducing turnovers. Therein lies their main drawback - not slow down and steal. Another minus - simple password, as it must be administered during the movement.

Combined admission system

For example, a key fob or card Tlris for external protection and tolerance with a password to start the engine. The most stable system the degree of protection.

Alarm (sound, light and radio pager)

It applies two-level alarm - warning and alarming. The alarm should be included, if not responded to the warning. Includes no reason, she just annoying, and soon ceases to attract attention. This is often used by the kidnappers, especially disturbing chosen car. Sometimes using the monotony of votes sirens - next to your car put his with the same siren and periodically include. When the host stops responding, by "training" move to action. Therefore, make sure that the sound of your alarm is different. Or buy a radio pager.

He quietly promptly tell you what's going on with the car. Some pager connected to the relay, including a lamp lighting a parking lot and thus mimic the technique vigilant observation. But note that the pager as easily suppressed jammers and there is always a chance to get up in the morning sleep is sweet, but somewhat impoverished.

Immobilizer or forced it off

Foreign insurance companies require that the anti-theft device that can be locked at least three components: starter, ignition and fuel supply. And as a consequence - a passive blocking of the engine, if the processor is not working (disabled or destroyed).

Active also provides immobilization only when the processor. In addition to leave the possibility to use the car in case of failure of the security system, many of them used as normally closed contacts of the relay blocking. These and enjoy the hijackers: just tear off the power cord of the main unit - and the system disarmed. To find it, even among the same thickness and color of wire, enough light bulb with a sharp probe. Pierce the insulation of the wire is remaining energized when the ignition is off and the way forward is clear even Losers.

If the wires from the blocked circuits converge to a single block, the thief is only facilitates the task. The solution takes a couple of minutes. Here again, the advantage of passive locking, especially if it mikroimmobilayzery and they are scattered throughout the car. And moreover, if they are mounted at regular blocks car as thus neutralize their jumper is simply impossible.

In systems that provide forced jamming the engine must operate alarm, warning that the car is something wrong and him should stay away. Otherwise, there is a chance to return the car, the victim not so much on the hijacker as on unwitting neighbors on the highway.

Systems of return of the car

It is about the suppression of armed theft. When it wiser to allow the thief to drive off and on the safe distance for you to forcibly turn off the engine. Mode is usually included with the special key fob. But the hijackers are likely to be taken away, and the motion will try not to reduce engine speed. Since these systems also shut down the engine at lower rpm below a certain level. Or use jammer, then the need to take key will disappear.

And even probable - you will ride in the car until identify all the traps. Then he offered to turn them all trained to do it and only then expelled. That's when the chances of return of the car almost does not remain.

More precisely, it was until recently. There were systems in place to call on the phone to block the engine at a distance of tens of kilometers. On one of them we have learned recently, when receiving a pager network "LINK Telecom". In the list of services attached hence "peydzhingvaya security car alarm." The more we delved into the essence of the system, the more it will motivate us. To avoid accusations of advertising, shall not give her name, only list items to show us Ace of Base ("ace in the pack").

This is a specialized on-board computer with a processor "Intel", trained to protect the car. The system is built on mikroimmobilayzerah placed near or inside an object of control. They can be up to eight independent. It can include any number of sensors and intelligent sensors. Management system and entering passwords admission made by hand with a two-button keypad. Status indicators, confirmation operations and some tips are made multicolor display and music signals. Perhaps rapid reprogramming to change the algorithm of the system. Laptop protected from exposure to electric or radio productions and remembers trying to use them. Installation of paging receiver ("Motorola") for receiving external commands. The simplest of them - pager sound processor on a radio signal in the cabin loses one of a set of easily recognizable tunes. So it is possible to transmit the driver conditional messages without detracting from the driving experience. The price system in the minimum configuration - about two hundred US dollars, with the receiver - twice.





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