Overhead control panel 37 Overhead control panel At a glance Function Page : Tachograph, see the manu- facturer's operating instructions ; z Switches the front windscreen heating on/off 90 = I Switches the lateral end position of wind- screen wipers on/off 88 ? Q Switches on the headlamp cleaning system 89 A J Switches the exter- nal lighting control on/off 77 Function Page B i Switches the work- ing-area lamp on/off 77 C é Switches the auxili- ary headlamps on/off 77 D À Switching the rotat- ing beacons or strobe lights on/off 79 E Monitor for front, rearview and equipment cameras 196 F CD radio 148