45 Heating and air conditioning system ›  Heating Heating and air conditioning system Heating Overview of the heating operation components Replace the windscreen wiper blade CAUTION Risk of accident! ▶ Change the windscreen wiper blades once or twice a year. › Fold the windscreen wiper arm away from the windscreen. › Press the catch and re- move the wiper blade. › Insert the new wiper blade until it clicks into place. › Fold the windscreen wiper arm back onto the windscreen. › Turn on the ignition and push the control lever down. ▶ Always keep the fan on. ▶ We recommend keeping the interior temperature no more than 5 ° C lower than the outdoor tem- perature. ▶ We recommend switching the cooling system off about 10 minutes before the end of the journey to prevent odour formation. ▶ Annual disinfection of the air conditioning is rec- ommended. ▶ Always keep the fan on. ▶ Keep the recirculation mode switched on for a short time only. ✓ Outside temperature above 2 ° C ✓ Running engine ✓ Fan switched on Operating conditions for the cooling system WARNING WARNING Danger of misting! In recirculation mode, there is no fresh air supply from the outside. This can result in loss of driver at- tention and fogging up of windows. Risk of accident! WARNING Manual air conditioning What you should be mindful of A Set the temperature B Set the blower speed C Set the direction of the air outlet Switch recirculated air mode on/off Danger of misting!