Tools required: Stubby phillips head, small flat head, handcleaner and car jack and (stand if available)
Step 1. Working on RHS, turn and fully lock steering wheel to the left, this will give you clearance to get to the headlight from rear.
Step 2. Jack up car high enough so the tyre is just off the ground.
Step 3. Unscrew 2 screws and 2 plug to gain access to rear headlight.
Step 4. Pull back plastic and bend down to reveal rear headlight, you may be able to wedge it so it grabs onto the top of your tyre.
Step 5. Unscrew top cap anticlockwise, bottom cap is for spotlights.
Step 6. Pull off plug to reveal bulb and spring clips, to do this turn it left to right, you will notice it will only move about 5 mm in each direction, as your doing that, pull at the same time. This uplugs it from the bulb, now pull cable out so it is out of your way while you remove the bulb.
Step 7. Squeeze the spring clip together, this is the RHS we are working on, and you will notice that the LHS of the clip is what holds it in, and the RHS is a guide. sqeeze more onto the LHS. Reverse this when reinstalling ensuring that perfect contact has been made otherwise bulb may not work.
Step 8. With the spring clips released, ensure that this is out of the way by lifting it high as it goes, remove bulb, replace with new bulb ensuring it goes in the same way, and the spring clip is moved up high out of the way again, notice the filament on the picture it is in the downward position. "DO NOT TOUCH THE NEW BULB'S GLASS" ONLY BY THE METAL PART..... All done now reverse everything and job done.
Quick note: when screwing down wheel arch ensure that the fitting is done as per photo, bit of elbow grease required. The round hole must be outside of the metal, you will notice how it works better when i plain site yourself.
This took me 10 minutes including photos, I do not recommend removing bumper bar as some forum members suggest, this is silly and will take you a lot longer, plus potentially scratching your bar.