How many liters of windshield washer fluid should be added to a BMW?

[Malcolm]

When refilling windshield washer fluid for a BMW 5 Series, the owner should add approximately 4L. If too much is added and cannot be used up within a limited time, chemical reactions may occur in the fluid. This can affect the normal spraying function of the washer and potentially damage the car's windshield, causing irreparable scratches. Additional information about windshield washer fluid is as follows: 1. In low temperatures: The washer fluid should have good cleaning performance and antifreeze properties. Therefore, when selecting washer fluid, antifreeze performance should be the primary criterion. Poor antifreeze performance can lead to issues such as frozen fluid or malfunctioning washer pump, which can impair visibility. 2. When choosing washer fluid: It is best to select a product that offers protective properties for the windshield and wiper blades. Low-quality washer fluid can significantly shorten their lifespan.