Topping up the windscreen washer system
WARNING Danger of burns from hot component parts in the engine compartment
Certain component parts in the engine compartment may be very hot, e.g. the engine, the radiator and parts of the exhaust system.
Let the engine cool down and only touch the component parts described below:
WARNING Danger of burns when opening the bonnet
If you open the engine bonnet when the engine has overheated or during a fire in the engine compartment, you could come into contact with hot gases or other escaping operating fluids.
Before opening the bonnet, allow the engine to cool down.
In the event of a fire in the engine compartment, keep the engine bonnet closed and call the fire service.
WARNING ‑ Risk of fire and injury due to windscreen washer concentrate
Windscreen washer concentrate is highly flammable. It could ignite if it comes into contact with hot engine component parts or the exhaust system.
Make sure that no windscreen washer concentrate spills out next to the filler opening.
Remove cap 
by the tab.
by the tab. Top up the washer fluid.