Diagnosing Windshield Wiper Problems
| Sign of malfunction | Possible reasons | Method of elimination |
| Slippage | Contamination of rubber bands | Clean the rubber bands with a stiff nylon brush and a solution of detergent or alcohol |
| The rubber bands are frayed, the rubber bands are damaged | Replace the rubber bands of the brushes | |
| Aging of the brush rubbers, cracked surface | Replace the rubber bands of the brushes | |
| The remaining traces of water quickly form droplets | The windshield is contaminated with paint, oil or diesel exhaust | Clean the glass with a clean cloth to remove grease, oil and silicone |
| The brush cleans well in one direction and poorly in the other | One-sided deformation of the rubber band | Insert a new rubber band |
| Twisting the lever, the brush is skewed on the glass | Carefully straighten the lever | |
| Uncleaned surfaces | The rubber band came out of the frame | Carefully insert the elastic into the frame |
| The rubber does not fit evenly to the glass due to deformation of the tire spring | Replace the brushes. This defect most often occurs due to improper installation of the spare brush | |
| Low downforce | Lightly lubricate the brush hinges and spring or install a new brush |
[The article was taken from the website: MitsubishiMan.ru]