BMW's M mobility systems were developed to provide you with help should your car suffer a breakdown: the focus is on easy repairs that enable you to get back on the road quickly. If something creates a puncture of over 4mm in diameter in a wheel of your car, you can set to work with the kit located in the boot.
This kit consists of an electric compressor in a splashproof case, which also carries an aluminium flask to hold the tyre repair fluid, and the necessary cable and pipe connections. The compressor should be plugged into the cigarette lighter and then used to pump the tyre repair fluid into the tyre via the valve, eliminating the need for more extensive repairs. The repair kit takes up less space and weighs much less than a spare wheel.