How to increase the stroke of the right wiper on LADA Samara (VAZ 2108.09.099)

A hot topic for owners of the corresponding model is replacing the windshield wiper trapezoid on a VAZ 2110. Experienced motorists know: this part is subject to rapid wear

, or rather not the part itself, but some of its components. In particular, the bushings are made of plastic. Whether the design is to blame for this, or some other defects, they wear out much faster than other mechanisms.

Meanwhile, the performance of windshield wipers is a guarantee of safety in bad weather.

Replacing the windshield wiper trapezoid on a VAZ 2110 is a necessary measure that has to be taken to maintain the wipers in working condition. At the initial stage, this problem manifests itself in a weakening of pressure - in other words, the windshield wipers cannot cope with flows of water or heavy snowfall. Returning to the original position is difficult; you can actually feel the strain with which the wipers move across the glass.

The presence of such symptoms indicates wear and tear on the trapezoid mechanisms.

windshield wiper

Device design

Wiper circuit

First, let's try to understand how the windshield wiper circuit on the VAZ 2110 works and what components form a solid unit called a windshield wiper.

Minor tuning: wiper relay with adjustable pause and optical rain sensor

The rain sensor has only come into full use in the last decade. The sensor makes driving in the rain much easier, freeing the driver from working with the right steering column switch. Today this is not only a salon option. There are a lot of online stores where you can pick up a “relay-optical rain sensor” combination for a specific car and install it yourself.

Setup of purchased kits is carried out according to the instructions. The usual system provides several modes, for example, rain, snow and a standard pause of a few seconds. On-demand operation is not disrupted - if you need a second speed, turn it on. Same with the third one.

An alternative to a rain sensor is a relay with an adjustable pause. It costs a penny, it only takes a few seconds to install, and the effect is very good. Electrical equipment allows you to change the pause depending on the conditions while on the road while driving. Another nice bonus is that you can choose a part with a different cycle of operation of the windshield wipers in washer mode.

Why the wipers don't work

At some point, the car owner may notice that his wipers are not working. This may manifest itself in their complete stop or creaking operation.

Trapezoid Compatibility

First of all, look for the reason in the electric motor. But remember that mechanical problems also happen.

The most popular mechanical breakdowns of wipers:

• When the cleaners turn on, the sound of the motor is heard, but the brushes do not move or twitch slightly. Most likely, the nut securing the crank to the gearbox axle has lost its grip or has become completely unscrewed.
• Non-synchronous operation of the windshield wipers indicates a problem with the drive. Again, check the locking nut. When tightening the nut, be sure to first place the brushes in the correct position.

As for problems with the electrical component, they manifest themselves as follows:

• The wiper moves very slowly, stops, then starts working again, does not stubbornly go to the lower position. Check the limit switch. By bending the contacts, it is adjusted in this way. If such a measure does not bear fruit, replace the entire VAZ 2110 wiper motor assembly, since the gearbox is built-in;
• You have turned on the intermittent mode, but the brushes work non-stop. Here the problem lies in the relay, which needs to be replaced. If when you turn on the device you do not hear a sound from the rotation of the motor armature, then the relay is 100% to blame. If not, then check for burns and oxidation on the contacts;
• When choosing any mode, you can only hear the clicking of the thermometallic fuse. At the same time, the anchor and brushes remain in place. Check to see if the brushes are frozen because of the frost and that’s why they don’t move. Either fuse F5 has blown, or the armature has burned out;
• The electric motor does not turn on, although the fuses are good. Check the quality of contacts. This often causes a stuck brush or a burnt armature.

How to prevent wipers from squeaking and cleaning without skipping

Most often, grinding noise and uneven movement of the brushes with vibrations appear due to wear and tear of the windshield wiper structural elements. Therefore, you need to start by finding out where exactly it is creaking. To do this, wipe the glass dry, turn on the windshield wiper at the slowest speed, get out of the car, look and listen. Then we wet the glass and note in which sectors streaks form.

Having suspected the culprit, we remove and carefully inspect the brush. Most often, especially on new cars, the reason lies in the wear of the rubber band caused by temperature changes, the chemistry of the washer and reagents, exposure to ultraviolet radiation and careless handling, such as tearing the rubber bands off the glass by force. The so-called “blade” of the rubber bands in all cases ceases to be smooth, and chips, tears and other damage appear.

Remember that almost all frame models and some “frameless” models can be repaired. Therefore, one of the most budget-friendly restoration options would be to purchase a spare working rubber part for the wiper. It will need to be cut to length and replaced with the worn one. There are many videos on the Internet about the exact sequence of actions.

However, there is no need to rush to replace the rubber band or brush. First, carry out a series of manipulations that can solve the problem. Start by removing and washing the rubber parts with warm water and soap. It would also be a good idea to degrease the brushes by placing them in a weak soda solution, then rinse thoroughly with warm water. But it is not recommended to use gasoline or a solvent such as white spirit for cleaning purposes. These substances can wash away the graphite coating from the brushes, and as a result, when you return the brushes to the car, the squeaking may only get worse.

Some drivers also believe in the magical power of silicone. However, if you treat the rubber of the brushes with silicone lubricant, the squeaking may disappear only temporarily, and you may also get such an unpleasant side effect as silicone stains on the glass. In fact, silicone-based chemicals are not good for resuscitating brushes, but rather for combating the freezing of wipers due to temperature changes.

Separately, we note that if frame wipers squeak, the reason may lie in contamination or rusting of the hinge joints. This is also why the brush stops pressing properly against the glass. Therefore, if we find traces of rust or oxides on the joints of the brushes, we lubricate the hinges with special compounds. Universal lubricant WD-40 will also work.

However, there are often situations when the springs in the holders also create a problem. Over time, they stretch, especially in the cars of those drivers who regularly raise their windshield wiper blades at night to prevent them from freezing to the glass. To make sure that this is the case, for the sake of experiment, increase the load on the brush - simply press it with your hand during the glass cleaning cycle. If the quality of cleaning has improved and the squeaks have disappeared, it makes sense to replace the springs with new ones or at least bend the tips of the leads towards the glass, thereby increasing the angle of attack.

However, the opposite situation also occurs - when the edges of the tapes are pressed too tightly against the glass, and creaking occurs precisely because of this. In this case, you need to slightly bend the leads away from the glass to reduce the pressure.

Another common cause of squeaks is loosening of the attachment of the brush with the leash. Moreover, such a scenario is not uncommon. The clamps become loose due to time, vibrations and even from the jets of a washing gun at the sink. Accordingly, the problem here can be solved by replacing the clamps.

Sometimes the squeaking of the wipers is detected only in one direction. If this is your case, make sure the brush is at the correct angle to the glass. In static conditions, the comb should be positioned strictly perpendicular to the surface of the “lobovukha”. If this is not the case, to correct the situation, you can, for example, try to tighten the holder and achieve the desired contact angle. Sometimes this problem is solved by removing the wiper rubber and turning it 180 degrees.

On cars that are not new, poor cleaning and squeaks can cause problems not in the wipers themselves, but in their drive mechanism, the so-called trapezoid. A simple manipulation will help to make such a diagnosis - grab the base of the leash and swing it in a horizontal plane. If even a slight play is noted, the trapezoid bushings are worn out, and it is they that provoke poor adherence of the brushes to the glass and squeaks. First, try lubricating the trapezoid bushings, and if this does not help, replace the part with a new one.

Finally, poor cleaning and squeaking brushes can cause glass damage. Microchips, scratches and cracks not only provoke gaps in the cleaning field, but also sharply increase the wear of the brushes, acting as an abrasive. In this case, there is no point in changing or repairing the wipers. You need to start by repairing or replacing your windshield.

Windshield wiper repair

In practice, repairing wipers on a VAZ 2110 is not at all difficult if you have at least basic experience in working with a car and its electrical components.

Unscrew the fixing nut

First, let's figure out how to remove the wipers on a VAZ 2110. The design provides several fasteners, by unscrewing which you can easily remove the wipers themselves.

But with disassembling the windshield wiper assembly, everything is a little more complicated. It is analyzed as follows.

1. Remove the dashboard.
2. On the left side, find the relay that is attached to the body. If it is broken, there is no point in repairing it. Just install a new relay.
3. Next, check the condition of the fuse that controls the operation of the windshield wiper drive.
4. Disassemble the steering column to allow you to examine the state of the switch. If the insulation is damaged or there is other damage, replace the unit.
5. Unscrew the electric motor from the body and check it in action. If the damage is not serious, it can be repaired. It's better to immediately replace it along with the relay.
6. Check the drive. It is not uncommon for a pulley to break on it, which is why the device has to be replaced with a new one.
7. Make sure the trapezoid is in good condition. It may be necessary to replace the windshield wiper trapezium on a VAZ 2110 if, during operation of the car, the lubrication of the device has deteriorated and all kinds of debris and water have gotten in there. If the lubrication does not work properly, the plastic bushings of the hinges wear out, causing play and increasing resistance during operation of the device. The trapezoid itself serves to transmit force from the electric motor to the windshield wiper arms.

Troubleshooting methods

To carry out repairs, you will need a wiper repair kit for the “Ten”; you can find it in almost any car store.

The procedure for diagnosing and troubleshooting is as follows:

1. First of all, you should diagnose the safety device located in the mounting block. Assess its condition visually, check the integrity of the fusible thread. If the fuse is blown, it must be replaced.
2. If the fuse is intact, then you can begin disassembling the instrument panel. To do this, unscrew the bolts that secure it, and then dismantle the tidy. Having done this, you will need to find the relay responsible for the operation of the brushes; it is fixed on the car body. Check the functionality of the relay; if necessary, replace it with a new one.
3. If everything works, then further actions are carried out in accordance with the breakdown. If the system does not work at all, then you need to dismantle the electric motor and check it; for this it is better to use the services of a qualified electrician. If necessary, the gearbox is changed. In some cases, it is enough to bend the contacts to ensure normal operation of the gearbox.
4. Remove the steering column switch and check its integrity. Make sure that the switch contacts are intact and not burnt. If you notice damage, the switch should also be changed; to do this, you only need to dismantle it and reconnect the block with wires.
5. If the brushes move intermittently, while the motor itself is working normally, then check the trapezoid. If damage is detected, the trapezoid must be replaced.
6. If the wipers move, but no water flows onto the glass, then you should check the operation of the pumping device. If all the hoses are intact and not clogged, but the pump refuses to pump water through them, then the device must be replaced. To do this, you will have to drain all the water from the tank and remove the container from its seat. Disconnect the supply pipes from the pump, then remove the mechanism from the tank. Install a new one, installing a new sealing gasket in advance, and if necessary, treat the installation site with sealant to prevent liquid leakage. Wait a few hours for the sealant to set, and then assemble the entire structure.
7. When replacing the pump, it is also advisable to pay attention to the integrity of the reservoir itself. If the expansion tank has damage and cracks that cause fluid to escape, then you need to either repair the tank or replace it. Repair can be carried out by melting the plastic in the damaged area and then allowing it to harden. If the damage is minor, this will allow you to get rid of it. For more serious problems, the tank needs to be replaced.
8. Also check the condition of the wipers themselves. If, as a result of their work, stains remain on the glass, and the glass itself is cleaned unevenly, then it is better to replace the brushes (author of the video channel Shurik GaikoF).

Alternative solutions

Most car owners of the domestic “ten” are accustomed to replacing worn out and faulty windshield wipers with similar ones.

Often this happens because they do not see alternatives and are not familiar with them.

But this size can be increased to 530 millimeters . It is not recommended to install more, since this way the windshield wiper will not be able to work effectively, and the drive simply will not cope with the load. As a result, too long brushes cause squeaking and jerky work. Plus, don’t count on a long service life of the wiper mechanisms.

The original windshield wipers for the 10 are quite good. But there are more expensive, but also more highly efficient, high-quality devices.

Today it is fashionable to use frameless wipers, especially from Bosch. Their advantages lie in their compactness and a special, reliable leash mechanism.

But as practice shows, on the windshield of the VAZ 2110, as well as other VAZ models, they do not look very nice, because the fasteners on the leash turn out to be massive. Although if you modify them a little, you will get a very good result.

When to change wipers

The service life of the “tenth” brushes is 500 thousand work cycles. If you translate those numbers into the area they could clear, that's 50 football fields. But, be that as it may, it is recommended to change wipers once a year. And it is advisable to do this before the onset of cold weather. Naturally, the wipers of the VAZ-2110 may lose their functionality even earlier. The reason for this could be, for example, damage due to freezing to the windshield or deformation caused by constant exposure to the sun. In such cases, the brushes also need to be changed.

Refinement stages

Wiring
It is easy to modify or replace wipers. To do this you need to take several sequential steps:

• Disconnect the negative cable from the battery;
• Pull the wiper towards you;
• Remove the existing brushes;
• If there is a decorative trim, remove it;
• Unscrew the mounting bolt, thereby removing the old wiper;
• Compare the dimensions of the old and new cleaner;
• Ideally, the new device should not exceed the old one by more than 20 millimeters;
• Reverse the assembly procedure.

As you can see, changing windshield wipers is not difficult. But with the repair procedure, everything is somewhat different. But following the instructions, even an inexperienced VAZ 2110 owner will be able to do everything with his own hands.

The VAZ 2110 is equipped with a three-speed windshield wiper system. The cause of its malfunction may be a gear motor, relays, fuses, a steering column switch, and even a leaking washer reservoir on a VAZ 2110 car. The article discusses the causes of wiper malfunctions and their elimination.

Other ways to speed up your windshield wipers

If the slowdown occurs mainly in winter, we recommend replacing the lubricant with Ciatim. This substance is not afraid of cold temperatures down to minus 60. Moreover, it is quite thick and adheres well to parts - one treatment lasts for a long time.

Remember that before lubrication, you should clean the moving elements from rust and degrease. It is also worth using Ciatim in the gearbox.

Experienced people advise to speed up the work of wipers:

• swap contact 53 with 53b;
• adjust the windshield wipers;
• make sure that the mass coming from the motor is holding well.

Possible causes of wiper malfunction

The causes of windshield wiper malfunction can be either mechanical or electrical. We start troubleshooting first with the fuse, and then we disassemble the rest.

Mechanical problems may include the following symptoms:

1. When the windshield wiper is turned on, you can hear the wiper motor running, but the blades do not move. This may primarily be caused by a loose or loose nut that secures the crank to the gearbox axle.
2. If the brushes do not work synchronously, the reason may be the driver - its fastening nut has become loose.

Windshield wiper diagram for VAZ 2110

Electrical faults have the following symptoms:

1. The brushes do not occupy an extreme position, they stop anywhere and move slowly. The cause may be the ring switch. In this case, you need to bend the contacts. If this does not help, you need to replace the wiper motor assembly, as it is sold with a gearbox.
2. The intermittent mode is turned on, and the brushes work continuously, then the problem is in the relay, it needs to be replaced. If the replacement does not help, then it is likely that the contacts on the limit switch have oxidized or burnt.
3. If, when you turn on the windshield wiper, the windshield wipers and armature do not work, then the blades may have frozen. Another reason could be a burnt anchor.
4. The electric motor does not work, but the fuses are good. In this case, it is necessary to check the contacts that the wiper drive has, as well as the motor. It is possible that the VAZ windshield wiper blades are stuck or the armature is burnt out.

Checking the operation of the windshield washer

What to do if the wipers stop working due to electromechanics

If the wipers on a VAZ 2110 do not work, the problem may lie in failed gearmotor elements.

The following elements of the electric motor can fail:

• Limit switch;
• Motor anchor (it could burn out);
• Contacts (oxidized);
• Springs on motor brushes;
• Gears in the gearbox (worn out);
• Collector (burnt or dirty).

Repairing wipers on a VAZ 2110, if the cause is correctly identified, will not be difficult.

To do this you need to do the following:

• Remove the dashboard;
• The relay is screwed to the left of the car body; if it is faulty, replace it;
• Check the fuse;
• We disassemble the steering column and study the switch. If the insulation is damaged or other problems are present, change the steering column switch;
• We take out the electric motor and, if the damage is minor, we carry out repairs. If it requires replacement, feel free to replace it along with the relay.

The wipers on the VAZ 2110 may not work due to mechanical faults.

Quite simple things can prevent the wipers from working properly. For example, such as loosening the nut that secures the electric motor and brush holder. Or weakening the springs of the leashes. The cause may also be the destruction of gears, which is associated with the fragility of the material. As a rule, they are made of plastic.

Windshield wiper repair

To repair the unit you will need the following materials and tools:

• set of sockets and keys;
• screwdrivers;
• WD-40 liquid;
• old rags;
• trapezoid repair kit in case of need for replacement or windshield wiper repair kit for VAZ 2110;
• other parts requiring replacement.

To repair the windshield wiper, you need to disassemble it:

1. First you need to remove the instrument panel.
2. Next, you should find the VAZ 2110 wiper relay, which is screwed to the body. If it doesn't work, it needs to be replaced.
3. It is advisable to remove the frill so that it does not interfere with disassembling the unit.
4. Now you need to check the fuse that is responsible for the operation of the VAZ 2110 wiper drive.

The next step is to disassemble the steering column to check the switch. If it has significant damage, it needs to be replaced (the author of the video is “In Sandro’s Garage”).

1. Next, you need to dismantle the motor and check it. If replacement is necessary, replace the windshield wiper motor and gear motor assembly.
2. If the windshield washer reservoir or pump is damaged, it must be replaced.
3. Be sure to check the size and condition of the brushes: they must meet the standards specified in the manual. Their length is important as they must cover the entire surface of the windshield.

Electromechanical problems

An electric motor that shows no signs of life, no click and a blown fuse F5 - all these problems indicate faults in the gearmotor, which can be eliminated by replacing one of the components:

• dirty collector in the electric motor rotor;
• brushes that ensure continuous contact in the motor;
• burnt collector;
• broken armature winding.

There are other options: the electric motor does not want to work, but there is a click, or the fuse blows. In this case, you need to return the left lever to its base position as quickly as possible, since these problems indicate a short circuit in the electric motor. It needs to be completely changed. With the same problems, there may be minor faults: brushes frozen to the glass, or wipers touching body parts. Under such circumstances, you need to carefully separate the brushes or straighten their mounting arms.

Do-it-yourself modification and replacement of wipers

Which wipers are better is up to the car owner to decide. Those installed on the VAZ 2110, as well as on the UAZ, do their job well from the factory, but it can be modified with washers from other companies that are of higher quality. Many people are attracted to frameless brushes - this is a good option. They are compact in size and equipped with a special leash mechanism. True, they do not look very attractive on the VAZ 2110, since the fastener to the standard washer arm turns out to be massive. Therefore they need improvement.

Frameless car washers

To perform a replacement or modification, you must perform the following steps:

1. First you need to disconnect the negative terminal on the battery.
2. Then you need to tilt the mount towards you and remove the brush.
3. If there is a decorative trim, it must be removed.
4. By unscrewing the bolt, you can remove the old brush.
5. Before replacing parts, be sure to check the dimensions of the new washer with the old one. It is advisable that the new one does not exceed the size of the old one by more than 2 cm.
6. Installation of the new kit is carried out in the reverse order.

After upgrading, you should check the functionality of the unit: whether the brushes creak, how they work when switching modes. At high speeds of the windshield wiper motor, the wipers should work quickly, at low speeds - slowly. In addition, they must support intermittent operation.

Replacement process

The easiest way to get rid of problems with VAZ-2110 windshield wipers is to contact a service station. There the trapeze will be replaced in an hour or an hour and a half. But if unscrupulous repairmen notice that the owner does not understand the cause of the breakdown at all, they can repair the car for half a day, saying that the problem is very serious.

Therefore, the best option that will save money is to replace the part yourself . This process works as follows:

First of all, you will need to dismantle the old trapezoid. To do this, you will have to disassemble and remove the windshield wiper arms. To do this, you will have to unscrew two nuts with a 12mm wrench. When removing the levers, you need to be careful, since powerful springs create a problem when removing them. It is better to bend the leashes first.

Disconnect the wiper motor gear pads.

Unscrew the nut of the left trapezoid fastening.

Unscrew the nut on the other side.

Unscrew the fastening of the gearmotor bracket.

Remove the trapezoid from the studs and remove it.

Only after this can the trapezoid be removed. The main thing is not to forget to disconnect all electrical connectors.

A new spare part must be assembled before installation, since it is in a disassembled state. When connecting parts, you need to make sure that all parts are aligned and adjusted. Only after this are the nuts tightened.

Before installing a new trapezoid, it is advisable to lubricate all its rubbing parts with graphite lubricant . Some advise using lithol , but it loses its properties at sub-zero temperatures.

Repairing a trapezoid using a repair kit

If the bushing in an old part is simply worn out, it is not necessary to change the entire trapezoid. It is enough to simply repair it using a repair kit . As a rule, it has everything you need. To repair the trapezoid, you will also have to remove it. When removing the wiper arms, you must try to act extremely carefully, otherwise you may damage the glass or paint on the edge of the hood.

Diagram of the front and rear wiper VAZ-2110, 2111, 2112

Wiring diagram for the rear window cleaner and washer:

1 – washer motor; 2 – mounting block; 3 – ignition switch; 4 – rear window cleaner and washer switch; 5 – rear window wiper gear motor; K6 – additional relay; A – to power supplies; B – the order of conditional numbering of plugs in the gear motor block

Vehicle operation

1 Road film accumulates on windshield wiper blades over time, reducing their effectiveness, so wiper blades should be washed regularly in a mild cleaning solution. Checking the condition of the blades and the initial position of the windshield wiper arm 2 Windshield wiper assemblies with brushes should be inspected regularly. If inspection reveals hardening or cracks in the rubber of the brushes, replace the brushes. If nothing unusual is found upon inspection, wet the windshield, turn on the windshield wipers, let them run for a while, and then turn them off. An uneven brush mark on the glass or streaks on clean glass indicate that the brushes need to be replaced. 3 If the brushes do not clean the windshield well enough, the following reasons are possible: When the car went through an automatic car wash, wax particles got on the windshield. These particles can be removed by adding a detergent that has wax-dissolving properties to the windshield washer fluid. Filling the fluid reservoir with a glass cleaner with solvent-resolving properties can significantly improve the performance of your windshield wipers. Grease-dissolving cleaners cannot completely clean glass. If the brushes are damaged, they should be replaced. The installation angle of the windshield wiper arms does not correspond to the required angle. During operation of the windshield wiper mechanism, the fastening nuts may become loose, so they should be checked and, if necessary, tightened each time the blades are checked. Check 4 Turn the windshield wipers on and off until they return to their original position. 5 Check the distance between the wiper blade rubber and the base of the glass, which should be 20 mm on the windshield. Checking and adjusting the wiper arm angle

Checking the angle of the windshield wiper arm should be done when the glass cleaning efficiency is low or if the blades move unevenly or vibrate during operation. For adjustment, a special tool HAZET 4851-1 is required.

Check 6 Set the wiper arms to their original position. To do this, wet the windshield with water. Turn on the windshield wiper for a short time and stop it with the switch. 7 Remove the brush.

8 Move the lever -2-. Install the special HAZET tool and secure it with screw -3-.

9 Carefully pull back the lever. The HAZET tool must be in contact with the glass at three points. 10 Check the installation angle on the tool scale and compare with the required value. Required value: -3°±2°. Adjustment

11 Move the lever slightly away from the glass and turn it slightly with a 24 mm wrench -1-.

12 Check the installation angle again and, if necessary, adjust it so that the scale shows the required value. 13 After this, remove the tool, reinstall and secure it. Check the installation angle again and adjust if necessary.

Rear wiper and washer diagram for VAZ-2110, 2111, 2112

Wiring diagram for the rear window cleaner and washer:

1 – washer motor; 2 – mounting block; 3 – ignition switch; 4 – rear window cleaner and washer switch; 5 – rear window wiper gear motor; K6 – additional relay; A – to power supplies; B – the order of conditional numbering of plugs in the gear motor block

Positions of the steering column switch levers:

purple dotted lines indicate non-fixed switch positions, green and blue lines indicate fixed switch positions.

Contact closure at different positions of the windshield wiper and washer switch lever

Lever position

Numbers of closed contacts

How to increase the cleaning area of ​​your windshield?

The most common reason why the wiper does not reach the edge of the glass is an old-style frill (wind flap). In this case, the windshield wiper arm rests against the frill. The radical, and simplest, solution: make a V-shaped cut in the frill, which will give more movement to the leash.

Second solution: install the driver's side wiper higher than the initial position. Essentially, the higher the starting position of the brush, the larger the area it cleans.

However, there are disadvantages to this method. The raised windshield wiper blade now looks less aesthetically pleasing, which many car enthusiasts may not like. In addition, a raised wiper, which is no longer located under the frill, worsens the aerodynamic properties of the car, creating excessive air resistance. Still, the area near the counter will not be completely cleaned. The dirty part will resemble a wedge.

This deficiency is corrected by bending the windshield wiper arm. It is necessary to increase the angle of the factory bend. This is done by selection method. It is also worth slightly bending the upper end of the wiper spoiler, otherwise it may touch the blade when moving.