Central Locking

[rmassa]

I have just bought my first Mercedes C180 Petrol. It's practically brand new with only 20,000 Km on the clock. My only concern is what if the Central Locking System fails, either the battery of the key or the car battery, how do I open my car since there seem to be no key locks on the door handles ?

Can anyone help please ?

I can be conatcted on e-mail rmassa@maltanet.net

[Diesel Benz]

There must be a mechanical key lock either on the driver's door or on the passenger's door.