Q&A

Dear Mr/Mrs!
My CLK has locked itself from the inside. When I put in the key normaly it makes like a "click" sound (unlocking the system inside) And then I can turn over the key and start the car. But has stopped now! I inserted the key this mornigna nd there was no click sound, the car was still locked from the inside and i couldn't start the car.
can you please tell me what the problem is? I need help as soon as possible!
Thank you for your help!
(I have put a zip code for sweden, only because I don't know the zip code for Lebanon which i'm currently living in!!!)