What should you check regularly if your car has a spare wheel carried outside the body of the car?

The correct combination for checking a spare wheel carried outside the car includes verifying both the double safeguard and the tyre pressure.

1. The double safeguard ensures that the spare wheel is securely fastened and will not detach while driving, which is crucial for safety on the road.
2. The tyre pressure is essential to guarantee that the spare wheel is ready for use when needed. Low or misaligned pressure can affect performance and safety.

According to German traffic regulations, maintaining proper equipment ensures vehicle safety and compliance with road safety standards. This is vital not only for your own safety but also for that of other road users. Neglecting to check either aspect could lead to dangerous situations.