4 hours? wow. I just did my glowplug harness, my gp's and my passenger side low beam in about 45 minutes. It should only take about 5 minutes to remove , change bulb, and replace. I even have to remove the fuel filter to get my hands in there ( I just disconnect the mount and let it hang while I am working over there). The driver side you just have to pop the top of the battery cover off.
Before anyone says I must have small hands, I am 5'8 and 190 lbs. I wear medium to large gloves, so they are normal hands. If you want to complain about no space to work, remove the two torx bolts to the left and right of the hood between the hood and the lights. They must have used an anorexic midget to get those in there.