Important safety notes

WARNING
Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death.
Do not run the engine in confined areas (such as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are entering the vehicle while driving, have the cause determined and corrected immediately. If you must drive under these conditions, drive only with at least one window fully open at all times.

pedal Do not depress the accelerator pedal when starting the engine.

for up to The catalytic converter preheats for up to 30 seconds after a cold start. The sound of the engine may change during this time.

    See also:

    Service messages
    Information on the type of service and service intervals (see separate Service Booklet). You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (U ...

    Starting procedure with the SmartKey
    To start the engine using the SmartKey instead of KEYLESS-GO, pull the Start/ Stop button out of the ignition lock. •►  To start a gasoline engine: turn the SmartKey to position 3 in ...

    Important notes on the use of KEYLESSGO
    • The KEYLESS-GO key can be used like a conventional key. • You can combine KEYLESS-GO functions with those of a conventional key, e.g. unlock with KEYLESS-GO and lock with the & button. • A ...