Roof racks and load bars may seem simple, but incorrect fitting or overloading the roof can lead to worse driving characteristics and greater damage during a collision or avoidance manoeuvre.

What you need to know

  • Roof loads affect the car’s centre of gravity and sensitivity to side wind.
  • The maximum roof load is stated in the car’s documentation and must be respected.
  • Incorrect fitting can cause the equipment to come loose or damage the car.

Typical situations

SituationWhat you should doCommon mistake
Roof box before a holiday tripCheck weight, height and mounting points before departure.Packing the heaviest items at the top because it is convenient.
Empty load bars in daily useConsider removing them if they are not being used.Leaving them on without thinking about noise and consumption.
Driving in side windReduce speed and expect more movement from the car.Treating the car as if it were unchanged.

Common mistakes

  • Using the wrong or poorly fitting attachment points.
  • Forgetting the new overall height at parking garages and low bridges.
  • Failing to retighten after the first kilometres.

How to practice

Combine this with Roof loads and roof boxes , Dimension limits - height, width and length and Holiday travel by car - luggage and roof box .