The first step is finding the leak. The object that has punctured the tyre is not always easy to find. It could be a small one or a big sharp object as well. Take a close look at the tyre and check if there’s any hole or cut. If visible inspection doesn’t help, inflate the tyre to the appropriate pressure level and see if there is a hissing sound. If that too doesn't work, use some shampoo water and spray it on the tyre. You will see bubbles coming out from the leak. Mark the spot.

The next step is to jack up the car to remove the wheels. Make sure to park the car on a plain surface and apply the hand brake to make sure the car doesn't roll. Use a car jack to the recommended jacking points of the car, and use it to lift the side you’re working on.

After this loosen the lug nuts to remove the tyre. It can be done with a lug wrench. Remove the lug nuts to take off the wheel from the wheelbase. Now, it’s time to clean the leaking area using a rasp tool in and out of the puncture a few times.

The puncture repair kit comes with a plug that needs to be threaded in the middle of the insertion tool which is provided in the kit. Now, push it into the puncture hole. For a better seal and easy insertion, lubricate the plug beforehand with an adhesive such as glue or rubber cement. Usually, the puncture repair kits come with a glue tube for such emergency requirements. Now, after inserting it, keep the plug intact and don’t move it for some time to allow the adhesive to set and dry. Now, cut out the part of the plug that is sticking out from the tyre's surface.

This is the last step, where you need to fill the tyre with the OEM recommended air pressure in order to ensure smooth movement of the car. For this, a portable tyre inflator is required, which can be purchased aftermarket and it doesn't come expensive. After this, re-install the wheel reversing the process of dismantling. Once done, attach the lugs and tighten them to the proper torque and remove the car jack.