When the vehicle is stopped, the wiper speed decreases.
As the speed increases, the glass cleaning intervals are shortened.
On some models, a system for adjusting the pressure of the brush on the driver's side is installed (ADV) Depending on the speed of the movements, the pressure of the brush increases with four discrete values of the pressure, which prevents the brush from moving away from the glass at high speeds and impairing glass cleaning. Pressure switching thresholds: 5 km/h, 100 km/h, 140 km/h and 180 km/h.
A high-pressure washer for all headlights is installed as special equipment. When you turn on the washer and outdoor lighting, each headlight is washed from a separate jet. For better cleaning, the windshield washer water is mixed with detergent concentrate from a separate tank.
Caution: If the wiper motor or switch fails, the control circuit automatically disables the intermittent wipe and the first wipe speed. The same happens when the brush pressure control system fails. The blocking is maintained even after the failure has been eliminated. To unlock the wiper motor and switch, turn off the ignition (terminals 15 and R) for at least 3 minutes. The blocking of the ADV motor is released automatically in normal operation. You can also disconnect the battery for at least 30 seconds.