See also:

Unlocking the trunk (mechanical key
The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid. If the trunk cannot be unlocked with the SmartKey or KEYLESS-GO, use th ...

General notes
If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered. There are several ways to turn off the alarm: To turn the a ...

2012 Mercedes-Benz CLS-Class Review by Carrie Kim
As I approached the all-new 2012 Mercedes-Benz CLS-Class, I was filled with a mix of elation and bona-fide terror. It's similar to when you walk into a very nice home and the first thing you say t ...