Which dangerous defects can have occurred on a trailer with overrun brakes which has been parked for some time?

In the context of trailer safety according to German traffic regulations, it's important to understand that both brake functionality and electrical connections are critical to the safe operation of a trailer.

The potential issues with the trailer parked for some time mainly revolve around the following:

1. The brakes developing rust can lead to them not working properly. This is a significant safety concern because malfunctioning brakes can result in loss of control when the trailer is on the road.

2. Defective cable connections can also pose a serious risk, as they may affect brake activation and trailer lights, which are essential for safe driving and communication with other road users.

While it's true that increased tyre pressure can occur due to sun exposure, it does not directly impact the braking system's safety mechanisms as critically as the other two issues. Therefore, recognizing the first two issues is crucial for ensuring that the trailer is safe for use.

According to German traffic laws, ensuring that all safety features and connections are functioning is essential before operating a trailer on the road. Proper maintenance and safety checks can help prevent accidents, thereby ensuring safety for both the trailer operator and other road users.