PSI (pounds per square inch)

A standard unit of measure for tire pressure.

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    Operation
    Depending on the date of manufacture of your vehicle, the or symbol for the automatic headlamp mode/daytime running lamps is located on the light switch. Illustration: light switch with th ...

    DEF refill bottle
    DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if over ...

    Starting procedure with the SmartKey
    - To start a gasoline engine: turn the SmartKey to position 3 in the ignition lock and release it as soon as the engine is running. - To start a diesel engine: turn the SmartKey to position 2 ...