Mobile work machine with a driver cabin

The mobile working machine has a driver's cab (4) in which an electrical cabin heating device (20) is provided. The electrical cabin heating device has a surface heating element (25) that is installed as a heating plate inside the driver's cab. The surface heating element is integrated in vehicle components such as driver's seat (6), armrest (9), cover (17), roof pillar (16), car doors (18a,18b), front wall (31), dashboard (32), and rear wall (33) .