Where is the water filler port for BMW 530?

[DeLeila]

In the upper left position of the engine compartment, behind the left headlight, there is a water reservoir cap that can be opened to add windshield washer fluid. Features of windshield washer fluid: Windshield washer fluid, commonly known as car windshield cleaning fluid, is a consumable for vehicles. It is composed of water, alcohol, ethylene glycol, corrosion inhibitors, and surfactants. When using the windshield wipers to clean the car's windshield, the window becomes brighter and cleaner, providing the driver with excellent visibility. Notes on windshield washer fluid: There are many details to pay attention to when using windshield washer fluid. In winter, it is necessary to place the windshield washer fluid inside the car before adding antifreeze washer fluid. Do not use tap water as a substitute for windshield washer fluid. Tap water contains various impurities. Long-term use of tap water as windshield washer fluid can clog the washer fluid pipes, damage the wiper motor, and cause the wipers to malfunction.