I have a ford fiesta ( MK 5 ) my tail lights work fine.. but both the brake lights do not.. however the main centre light bar in the rear windscreen does work fine
i own a repair shop,and you might to need to check the bulbs for the two back ones if the center brake light is working on it,,other wise it may have a bad brake light switch on it, this is the most common cause for the brake lights not to work,, i replace at least 5 of these things a week or more ,at the shop,and it always surprises people that such a simple and cheap part can knock there brake lights out,,but that's the way it goes in the repair business,sometimes the cheapest part is the problem.id also check the fuse for it also,if both went out at the same time it cold just be a simple fuse blown,good luck with it,i hope this help,s.
your brake lights and signal are on same filament in bulb . turn key on and try signal lights. if they dont work ethier then you have a bad ground near frame on back of car. but mos likly is the sockes are corroded and need to be cleaned. you might just have a rare instance where both bulbs burned out . if you replace bulbs dont touch new glass with bare hands the oil from fingers traps heat and they will burn out quiker. if u need more info email me. thse cars plus the focus are famous for headlamps and tail light bub , brake, burn out. your bar in the center is led lights they never burn out.
