110 Climate c ontrolPollen filterThe pollen filter cleans the air entering fromoutside and filters dust, soot, pollen andspores from the interior air if the airrecirculation sy stem 3 is activ e. The activecarbon la yer 3 eliminates most odours andharmful ambient gases from the a ir.Hav e the pollen filter replaced at theintervals spec ified in the S ervice Booklet.NoteIf the windscreen is misted due to dampweather, tem pora rily set the sy stem asdescribed und er "Window demisting" .Settings - see pages 106, 109.Cooling 3 functions most efficiently whenthe windows and sun roof 3 are closed. Ifthe passenger compartment has heatedup considerably after a long period indirect sunlight, briefly open the w indowsand sun roof 3 so that the hot a ir canescape quickly.When cooling 3 (air conditioningcompressor) is switched on condensationforms, which is expelled from the undersideof the vehic le.At least one air vent must be open w hilecooling 3 (air conditioning com pressor) ison in order to prev ent the ev aporator fromicing up due to lack of air m ov ement.MaintenanceIn order to ensure consistently goodoperation of the AC comp ressor 3 , it mustbe opera ted sev eral m inutes once permonth irrespec tiv e of the wea ther orseason. It is not possible to operate the ACcompressor 3 when outside tem peraturesare low.If a fault oc curs, c onsult a workshop. Werecommend your Vaux hall AuthorisedRepairer.