See also:

Problems with the SmartKey
...

High-performance brake system for AMG vehicles
The high-performance brake system is installed only on the S 63 AMG and S 65 AMG. WARNING New vehicle brake pads and discs, and replacement brake pads and discs may take several hundred mile ...

Setting the EASY-ENTRY/EXIT feature
WARNING Make sure that nobody can become trapped when you activate the EASY-ENTRY/EXIT feature. If there is a risk of entrapment by the steering column, move the steering wheel adjustment ...