The master key - with an angled handle - fits all the locks in the car.
An additional one - with a rounded handle - only fits the locks in the driver's door and the passenger sitting next to it, the ignition switch and the lock in the gas tank. This key does not fit the lock in the trunk and the lock in the glove compartment.
Flat key fits all locks in the car. We suggest you carry this key with you at all times (e.g. in wallet) and never leave it in the car.
Replacing car keys
Your vehicle is equipped with a special locking system. Therefore, the replacement of keys is possible only at a service station "Mercedes Benz".