The windscreen wiper is an important accessory to the windscreen. Its function is to remove rain, snow, and dust from the windscreen that can interfere with the view. Therefore, it plays an important role in driving safety.

Select and pay attention to "primary resistance, secondary resistance and tertiary resistance"

Wipers on the market can be roughly divided into two types, one is the traditional intermittent wiper, which is now the most used one, wiper speed can be adjusted according to the rain affects the driving line of sight in three to four levels; The other is the bead-sensing wiper, which has been used in recent years on mid - to high-end cars. The wiper can adjust its speed automatically according to the rainfall.

A good wiper must have the characteristics of "first resistance, second strength and third resistance". "Primary resistance" means corrosion resistance; "Two strong" is a strong dialing water, and the windshield adhesion; "Three resistance" refers to heat resistance, cold resistance, acid and alkali resistance. Also, a good wiper should be soft and won't scratch the windshield. In addition, to ensure the safety of driving, windshield wipers had better be replaced every 6 months to 1 year.

When choosing a wiper, make sure you know what type of wiper your car is using and how the wiper is connected. Specifications can refer to the car manual, in which the wiper type is clearly marked, and the connection mode is mainly to see how the strut and wiper rocker arm are connected, some arms are fixed to the rocker arm with screws, and some are locked with a convex buckle; Also check the wiper rubber strip for aging. The method is to pull up the wiper and touch it with your finger on the cleaned rubber wiper. If the blade is found to be aged, hardened and cracked, and the rubber blade is not elastic, it means that the wiper is unqualified. Secondly, it is necessary to test whether the wiper speed is consistent and whether the wiper strut swings unevenly or leaks. The wiper can be tested in different speed segments, especially to test whether the wiper maintains a certain speed in the "slow gear" working state; Finally check wiper status. If the rubber contact surface and the glass surface can not be fully fitted, after wiping, there will be wiping residue or the glass surface will produce water strip, fog surface, indicating that this wiper is not qualified.