with a nut splitter
Drill it buy new hex nut. If unable to find new hex nut. Buy new ...
I got it. The nut is said to be stripped if it begins to lose its original shape (hex or other). This will make it difficult to grip the nut with tools.
I have a 2003 and the front disc brakes have a torque nut not hex.
Same way you do on a car.
If your lucky you can pound a smaller socket onto the nut and remove it. More often than not you need to weld a larger nut onto the stripped one, then turn the larger nut. Most tire shops can help if you don't happen to own a mig welder.
Sears sells a special socket to remove rusted, stripped and broken nuts.
To remove a pressed-in stud, you usually stack up a few washers and crank the stud out with an impact wrench on the nut. If the threads are completely stripped all the way down, you may have to take the head to a machine shop and have the stud drilled out and tapped for a screw-in stud.
step1. open the hood and remove the hex nut holding the outer light portion in place. step2. remove the hex nuts above the light assembly step3. remove the hex nut to the side of the lights to allow them to lean forward step4. allow light assembly to move forward and twist the light to remove from the assembly step5. replace bulb step 6. replace light assembly and all hex nuts
Best just to remove the nut and replace it with an new one, or grab a pair of pliers and tighten it that way if you absolutely need to.
how to remove hex nut when changing oil filter on peugeot 207