Topping up the windscreen washer system
WARNING Risk of injury due to overheated drive system
If you open the bonnet when the drive system has overheated or when there is a fire in the engine compartment, the following situations may occur:
You could come into contact with hot gases.
You could come into contact with other hot, escaping operating fluids.
Before opening the bonnet, allow the overheated drive system to cool down.
In the event of a fire in the engine compartment, keep the bonnet closed and call the fire service.
WARNING Risk of injury due to moving parts
Components in the engine compartment may continue running or start up suddenly, even if the drive system is switched off.
Note the following before performing tasks in the engine compartment:
Switch off the drive system.
Never reach into the danger zone surrounding moving components, e.g. the rotation area of the fan.
Remove jewellery and watches.
Keep items of clothing and hair away from moving parts.
WARNING Risk of burns from hot components in the engine compartment
Certain components in the engine compartment may be very hot, e.g. drive system and cooler.
Allow the drive system to cool down and touch only the components described below.
WARNING Risk of fire and injury from windscreen washer concentrate
Windscreen washer concentrate is highly flammable.
Avoid fire, naked flames, smoking and the creation of sparks when using windscreen washer concentrate.
Remove cap 
by the tab.
by the tab. Top up the washer fluid.