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The purpose of the driver condition monitor is to evaluate driving technique for signs of driver fatigue. If it determines the driver is fatigued, the instrument panel displays the warning, Take a break!, for 1 minute, accompanied by an audible chime. If driving continues for more than 15 minutes after the first warning, without taking a break, a further warning is given. The warning continues until the OK button on the steering wheel menu control is pressed.

The driver condition monitor is always active at vehicle speeds between 60 km/h (37 mph) and 180 km/h (112 mph). It can be switched off via the Driver assistance menu in the instrument panel. See INSTRUMENTENTAFEL MENÜ.

If the driver condition monitor develops a fault, a double warning icon displays in the instrument panel. The feature is unavailable until the problem is rectified. If the fault does not clear after the ignition is switched off and on again, consult a retailer/authorised repairer.