If the windscreen wipers begin to move while you are changing the wiper blades, you can be trapped by the wiper arm.
The wiper arms will move into the replacement position.
Check the condition of the wiper blades regularly and replace them in the event of visible damage or ongoing smearing.
When the colour of the maintenance displays changes from black to yellow, replace the wiper blades.
The duration until the colour changes varies depending on the usage conditions.