Wiper blade rubber wear
The wiper blades must be firmly pressed against the glass. However, the service life of rubber is limited. Over time, the rubber wears out due to the movements of the windshield wiper. In addition, under the influence of ozone and ultraviolet rays, rubber becomes brittle. In addition, due to small scratches on the windshield, nicks form in the rubber, which impairs the cleaning quality for a long time. For these reasons, the rubber of the brushes must be changed in spring and autumn. You can do most of the windshield wiper work yourself, in most cases a screwdriver is enough for this. True, for an inexperienced car enthusiast, replacing a windshield wiper blade can turn into a test of patience; for some, this work may seem like something of a puzzle. Work progresses faster and easier when using universal adapters (e.g. Bosch), these adapters are available from specialist retailers and most gas stations.
In the event of a fault in the wires or fuses of the wiper motor, check the electrical equipment (see relevant chapter).
Checking the windshield wiper and washer
1. Turn on the ignition, actuate the lever with the wiper blade.
2. Does the wiper operate at all speeds? Does it return to its original position when turned off?
3. Does intermittent wiper operation work?
4. Is water sprayed through the washer nozzles?
5. Does the rear wiper and washer work?
6. Is the headlight washer working?
Filling water for windshield wiper
1. In summer, the tank can be filled with tap water. The cleaning quality is improved by adding a small amount of cleaning agent to the water. In winter, antifreeze should be added to the water.
2. In order for the liquids to mix well in the tank, first fill in the additives, and then the water.
3. In extreme cold, spray nozzles may freeze. To prevent this phenomenon, add one part of denatured alcohol to two parts of water (however, the resulting mixture has a rather pungent odor). To prevent freezing of the long pipe that goes to the rear window, before parking the car, actuate the rear window washer several times.
4. Going on a trip, check the filling of the reservoir with water for the windshield washer.
Adding additive to the washer tank
Wiper blade rubber replacement
1. Fold out the wiper arm.
2. Compress the retaining spring of the brush so that the notch comes out of the hole in the wiper arm.
3. Press down on the brush and pull it out of the lever.
4. On one side there are notches in the rubber for engagement with lever spring clips. To disengage the clips, pry out the tabs on the rubber with your fingernail or a small screwdriver.
5. Pull out the rubber along with the side metal spring strips.
6. Engage the new rubber with the lower spring clips of the wiper arm.
7. Slide the right and left spring strip into the recess in the rubber. Insert the protrusions on the rubber into the corresponding locking recesses in the strips.
8. To engage the spring clips, depress the tabs on the rubber again.
9. When installing the brush, pay attention to the fact that the notch in the retaining spring is located opposite the recess in the lever and can interlock in this place.
1 - guide protrusion of the wiper strip, 2 - retaining clips for rubber, 3 - rubber guide profile, 4 - recesses in the spring strip
Replacing the wiper blade: First fold out the wiper arm, then unlock the blade hinge at the small tongue (arrow). After that, the brush can be pulled out of the wiper arm
Spray nozzle adjustment
1. Nozzles should not be set too low to ensure good visibility. Otherwise, at high speed, the glass will get dirty before the water wets the entire surface of the window.
2. Nozzles are factory adjusted. For correction, you will need a 3125A adjustment tool with a 3125/5A needle.
If the spray fields are not at the same height, the spray nozzles must be adjusted. If the nozzles are not adjustable, replace them
3. Use a water-soluble pencil to mark four points on the glass as shown in the figure:
Values for adjusting spray nozzles according to traffic conditions: a = 290±50 mm, b = 470±50 mm, c = 510±50 mm, d = 230±50 mm
4. These values take into account driving conditions. If the car is stationary, then the nozzles spray water with some displacement.
5. Using the adjustment tool, aim each nozzle towards the indicated points.
Removing the spray nozzles
The best way to fix a clogged spray nozzle is to remove the nozzle and blow it out with compressed air. If this does not help, the nozzle will have to be replaced. Clogged nozzles can be avoided by installing a standard gasoline filter in the water line. Do not blow nozzles backwards.
Spray nozzle base in hood
1. Dismantling: Open the hood. At the bottom, separate the base of the spray nozzle from the hood (arrow in the picture).
2. Remove the water hose from the separated nozzle.
3. When installing in reverse order, the connection of the hose to the spray nozzle must be accompanied by a click.
Removal and installation of wiper arms
1. Removal: Before removing the wiper arms, make sure that the wiper motor is in the end position.
2. Remove the battery compartment rubber seal in the direction of the arrow and remove cover 1 forward.
Removing the battery cover
3. Remove the retaining clips 1 and dismantle the air intake grille 5. Using a small screwdriver pry off both caps 3, slightly unscrew the hex nuts 4 and separate the wiper arms 2 from the axis of the wiper arm by tapping lightly. Fully unscrew the hex nuts and remove the levers.
Removing wiper arms
Wiper Arm Adjustment
4. When installing in the reverse order, move the engine to the end position again. Place the brushes on the windshield and align them, the following dimensions must be observed: a = 26 mm, b = 40 mm (see fig. higher).
5. These dimensions are equal to the distance from the brushes to the battery section air intake grille at the lower edge of the windshield. After alignment, tighten the nuts securing the wiper arms 4 to a tightening torque of 21 Nm.
6. Turn on the windshield wiper in intermittent mode. If necessary, align the levers again and tighten the nuts.
Dismantling and installation of the wiper motor with frame, levers and rods)
1. Remove the cover of the electronics box in the battery compartment (arrows).
Removing the electronics cover in the battery compartment
2. Using the right tool (it is recommended to use the release lever 80-200) separate from a spherical head of draft of a screen wiper 2. Turn away from a screen wiper frame guides for pipelines or hoses. Remove the screws (arrows) and completely remove frame 1.
Removing the wiper frame
3. Separate an electric socket. Unscrew the engine from the frame (arrows).
Unscrewing the engine from the wiper frame
4. When installing in the reverse order, screw the wiper motor without crank to the frame with a tightening torque of 9 Nm. Connect the connector, mount the engine with the frame in the car (tightening torque 8 Nm).
5. Turn on the windshield wiper in intermittent mode to move the engine to the end position.
6. Then align the crank J with the frame and tighten the nut 2 to 18 Nm. Angle a must be 2°.
Crank Angle Adjustment
7. Set the wiper blades to the extreme position.
Wiper malfunctions
Wiper blade failures
Headlight cleaner repair
1. Dismantling: On the bumper, pull up the cover of the spray nozzles and carefully unhook the holders (arrow).
Headlamp cleaning nozzle cover
2. Loosen the clip and pull out the nozzle insert (arrows).
Pulling out the nozzle insert
3. If you intend to dismantle all spray nozzles for cleaning headlights, remove the front bumper, on the bumper, pull up the cover of the spray nozzles and carefully unfasten the holders.
4. After that, by pressing the release button, remove the water hose 3. Remove screws 1 and 2 and remove the spray nozzle.
Dismantling and installation of the spray nozzle for headlight cleaning
5. When installing in reverse order, screw the spray nozzle to the front bumper (tightening torque 3 Nm), install the bumper. Since the spray nozzles are adjusted at the factory, they do not need to be adjusted after installation.
Visitor comments