I have changed my wedge bulbs and it is a slightly difficult process. You will need to do the following for each side. 1. Adjust steering wheel to give you a good working space on the side you are wanting to replace the wedge bulb. 2. Remove wheel well guard. 3. Once removed, access is tricky but possible. 4. Replace bulb 5. Reattach all wheel well guards. I changed my "more yellowish" wedge bulbs to match the headlights (standard halogen). Have fun! Regards. Hi insi, yes this will be the corner light, your parker lights, typically most if not all cars would use the wedge bulb (the one you are getting). There should be only one size for these, I havent experienced any different size ones. Just to note, this will be difficult to replace as there is a metal frame covering this section, you may need to remove the headlight and fit it in I think... but not sure, I didn't do it yet coz I couldnt be bothered at the time.