See also:

Installing the spare tire
Installing the spare tire The spare tire is designed for emergency use. See specific instructions under the heading “Wheels and tires” in the “Maintenance and do-it-yourself” section ...

Temperature
High temperatures accelerate the rate of corrosion to those parts which are not well ventilated. ...

Underbody
In areas where road salt is used in winter, the underbody must be cleaned regularly. This will prevent dirt and salt from building up and causing the acceleration of corrosion on the underbody ...