Notes for Service department

If an electrical fault occurs in the air flap control, only the lock of the lower radiator shutter is cancelled (passive air flap control via electromagnet). The radiator shutter drive for the upper radiator shutter (active air flap control via actuator motor) remains in the position it was in when the fault occurred.

The radiator shutter lock is also deactivated if a defect is detected at the coolant-temperature sensor or electric fan.

Work may only be carried out on the air flap control system (in particular checking the air flaps for stiff movement) with the engine switched off. There is a risk of injury.