def identify_max_engine_coolant_temperature(engine_coolant_temperatures):
    """
    Identifies maximum engine coolant temperature [°C].

    :param engine_coolant_temperatures:
        Engine coolant temperature vector [°C].
    :type engine_coolant_temperatures: numpy.array

    :return:
        Maximum engine coolant temperature [°C].
    :rtype: float
    """
    return engine_coolant_temperatures.max()
