Speaking of wipers, many motorists may not care. The wiper is a relatively small part in the sum of cars. But according to the International Driving Safety Survey, when driving on rainy days, the traffic accident rate caused by aging wipers is about five times higher than usual. If there's something wrong with your wiper during the rainy season, fix it or replace it.

There are roughly two types of wipers. One is the traditional intermittent type, which is the most common wiper. There are three or four stages, which are adjusted by the driver according to the rain and the line of sight. The other is the raindrop induction, in recent years more used in the senior car. A good wiper must be heat resistant, cold resistant, acid and alkali resistant, corrosion resistant, can fit the windshield, reduce the burden of the motor, low noise, strong water, soft and not scratch the windshield, can make your vision clear. Maintenance personnel suggest that to ensure your driving safety, it is best to replace the wiper once a year.

1. First, make sure what type of wiper you use. Refer to the vehicle manual to see the wiper model indicated above.

2. Pay attention to whether the way the strut is connected to the wiper rocker arm matches. Because some of the arms are screwed to the rocker arm, while others are locked with convex buckles.

3. Pull the wiper up and touch it with your finger on the cleaned rubber wiper to check whether there is damage and the elasticity of the rubber blade. If the blade aging, hardening, crack, then the wiper is not qualified.

4. During the test, put the wiper switch at various speed positions to check whether the wiper maintains a certain speed under different speeds. Especially in the state of intermittent work, also pay attention to the wiper in the movement of whether to maintain a certain speed.

5. Check the wiper state, and whether the wiper strut swings unevenly or misses scraping. If the following three situations occur, the wiper is not qualified. First, the swing is not normal, wiper beat; The second is that the rubber contact surface and the glass surface can not be fully fitted, resulting in wipe residue; Third, after wiping the glass surface appears water film state, the glass produces fine streaks, fog and linear residue.

6. During the test, attention should be paid to whether the motor has abnormal noise, especially when the wiper motor "hums" but does not turn. This indicates that the wiper mechanical transmission part has rust dead or stuck place, then should immediately close the wiper switch, in case of burning motor.

7, some people think that the longer the length of the wiper blade, the larger the area of the brush, the better the field of vision. Actually, the longer the wiper blade, the better. Although lengthening the wiper blade can increase the visual field, it will also increase the burden of the wiper motor and wiper rod. Of course, to lengthen of course, but to ensure that it must not interfere with the wiper's normal work.