You intend to pull a trailer with your car. Which of the following is true?
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As soon as a trailer is connected to a car, it alters the car’s traction. It can improve it or make it worse, depending on the situation. Ball pressure is an important factor:
High ball pressure:
Excessive load at the front of the trailer. This gives poor traction with the front wheels and makes the dipped headlights dazzle.
The load is all the way forward in the trailer (the red box) and is therefore pressing the coupling device towards the ground. The car is forced to follow it, and since the car is straight, the front end is elevated.
Low ball pressure:
Excessive load at the back of the trailer. This gives poor traction in the rear wheels. Can lead to a driving ban.
The load is placed far back in the trailer (the red box) and is therefore tipping the trailer backwards so that the coupling device is pushed upwards. The rear of the car is lifted by the coupling device.
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