bulb replacement on 1998 es 300

I recently replaced the fog bulbs on a 2000 ES300. I believe it should be the same procedure. I found it necessary to remove the Fog housing to replace the bulbs. First you'll need to get under the car. It isn't necessary to jack it up but you might find it easier with more clearance. Underneath the car, under where the Fog light is you'll see 2 screws on either side of the fog light. They are holding the plastic under body to the bumper. The screws will look like nuts with Philips head indentations in the middle. Remove these screws. After doing so pull down the plastic under body to obtain access to the back of the fog light. There is a nut on the inner side of the fog light that attaches it to the bumper (the side away from the outer side of the bumper) remove this nut and the fog light should be pretty loose. Now on the side that's closest to the edge of the bumper there is a plastic squeeze type retainer/clip at the top outer side of the fog light housing (still under the car inside of the bumper area). Gently squeeze this as you gently push the fog light out through the front of the bumper. Once you have it out unplug the harness from the back of the fog light housing. Now you can twist open the fog light to gain access to the bulb and replace it. Repeat the same steps for the other side. I hope this is adequate information to get you through the process painlessly. Good luck.