SmartKey battery

See also:

Safety
Dual-stage front airbags and door-mounted side-impact airbags for the front and rear seats are standard. Optional curtain-type airbags deploy from above the side windows. With Mercedes’ BabySmart ...

Safety
Antilock brakes have Brake Assist for automatic full-power braking in panic stops. Electronic brake-force distribution enhances stability when braking in curves. ...

Rear-view mirror (manual anti-glare)
X anti-glare mode: flick anti-glare switch 1 forwards or back. ...