Absence of wipers movement or poor glass cleaning;
No spraying of washer liquid;
Incorrect performance of switching devices and work mode changing;
Blocking of wipers on windscreen;
Incorrect automatic adjustment of wipers.
Signs of windscreen cleaning system failure
Stains on the glass when using wipers;
Squealing noise during wipers work;
Intermittent or too harsh work of the system elements;
Low pressure or its absence when spraying washer liquid.
Causes of windscreen cleaning system failures
Insufficient level of washer fluid in the reservoir;
Wear or mechanical damage of wipers or system components;
Unfastening of wipers or nozzles;
Clogged or dirty injector nozzles, hoses or the washer fluid reservoir;
Using substandard washer fluid;
Using water instead of washer fluid in cold season;
Ignoring system operation rules;
Fractions on hoses and fixtures;
Exceeding the working life of system components.
Diagnostics
It is very simple to carry an inspection of windscreen cleaning system. First you should evaluate the visual state of wipers, washer bottle, hoses and nozzles. You also need to check the level of fluid in the reservoir and refill it if necessary. Pump power supply inspection is better carried out in a service shop. Do not forget to check the corresponding fuse. System diagnostics should be done at least once a year.
Repair and replacement of windscreen cleaning system components
You can do almost all the repair works on your own. If the reservoir or hoses have fractions or other mechanical damages, you can fix them with the help of sealing paste, but replacement is a better solution. It is important to use wipers with similar attachment mechanisms and to check if adapter connectors fit the levers. The nozzles can be cleaned with a needle or fine wire, and you can adjust their position with pliers. Nevertheless, it is necessary to address a service center if there are problems with the wiring, particularly if the washers are switched on by a button on the steering column. In this case, the wires need to be fully replaced.
