See also:

Applying/releasing manually
– To apply: press handle 1. The red (USA only) or (Canada only) indicator lamp in the instrument cluster lights up. The electric parking brake can also be applied when the SmartKey is ...

Important safety notes
WARNING When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unsupervised in the vehicle ...

Charging the battery
WARNING Never charge a battery still installed in the vehicle unless a battery charger unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosions th ...