why the alarm siren not working,without any beep sound 

 

[superb 2011]

Are you usng same fob? You can config whether to beep or not and per fob.

Personally, I prefer the non beep and also all doors to open on single press.

Cheers

Steve

not just the beep...also the siren doesn't work

 

what is fob?

Fob, short for key fob, its the remote.

its doesn't work from the day i bought it second hand...its seems like it doesn't even have alarm system!

 

how to check it?

Open the windows, close all the doors, lock the car using a single press of the ignition key remote control, wait approx. 30 seconds.

 

Then stick your head through the window and wave your arms about inside the car. This will activate the alarm (if fitted).

 

Even if the siren is not working the hazard lights (four way flashers / indicators) should still flash when the alarm is activated.

First step is to try the above.  Otherwise could be a faulty siren.

i tried it today...nothing happened! not sound and not flashing lights

Maybe your car is not fitted with an alarm?

 

Where are you from, standard specifications do vary in different countries.

israel

where i can buy the complete alarm system ?

It would be far cheaper to buy a good aftermarket alarm system. There must be companies in Israel which can recommend and fit such a system for you.