Low outside temperatures

DEF freezes at a temperature of approximately 12 °F (–11 °C). The vehicle is equipped with a DEF preheating system when it leaves the factory. Winter operation is therefore also guaranteed at temperatures below 12 °F (–11 °C).

    See also:

    2012 Mercedes-Benz CLS-Class Review by Carrie Kim
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    Belt height adjustment
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    The Inside
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