Windshield cleaning system on a car Nissan Note the first and second generations are often subjected to critical loads, especially in Russian winter conditions. The mechanism, known as the wiper trapezoid, wears out over time, losing its rigidity and precision of movement. If you notice that the brushes leave streaks, squeak, or even stop moving synchronously, the problem lies precisely in the mechanical part of the drive.
Many owners try to solve the problem by replacing only the rubber bands or lubricating the bushings, but this only gives a temporary effect. Trapezoid wipers is a complex assembly consisting of levers, rods and hinge joints that are subject to corrosion and wear. Ignoring the symptoms can lead to the electric motor jamming, which will require much more expensive repairs to the entire system.
Diagnosis of mechanism malfunctions
Before you go to the store for spare parts, you need to make sure of the diagnosis. Often owners Nissan Note they confuse the failure of the trapezoid with problems with the motor itself or the electrics. Proper diagnosis will save you time and money by preventing you from buying unnecessary parts.
The main symptom of a malfunction is uneven stroke of the brushes. One can move quickly, while the other can be delayed or stop in the middle of the trajectory. Another characteristic symptom is a strong noise, grinding or humming noise coming from under the hood when the windshield wiper is turned on. These sounds occur due to play in the hinges or jamming of the rods.
- 🔍 Visual inspection: open the hood and ask an assistant to turn on the wipers, observing the movement of the levers under the hood.
- 🔊 Auditory control: listen to the sound of the windshield wiper motor, it should be smooth, without jerking or squeaking.
- 🛑 Resistance test: try to manually move the levers (with the ignition off), they should move smoothly, without jamming.
If you feel obvious resistance or steps when cranking by hand, then there is a mechanical problem. Also pay attention to whether the fastening nuts have been unscrewed. On some copies Nissan Note fastening elements can become loose due to vibration, which disrupts the geometry of the entire system.
⚠️ Attention: If the motor works, but the trapezoid does not move at all, do not try to forcefully turn the levers. This can lead to the breakdown of the gear inside the motor gearbox, which will require a complete replacement of the electromechanical unit.
Selecting the right spare part
Spare parts market for Nissan Note offers many replacement options, from original parts to budget analogues. The quality of the trapezoid directly affects the durability of the wipers and the load on the motor. Savings on this unit often result in a return visit to the service in a few months.
Original part from Nissan has a code that can be checked in the catalog by VIN number. It is distinguished by high quality materials, corrosion resistance and precise fit of all bushings. However, the price of the original can be quite high, which forces owners to look for alternatives.
Analogs from trusted manufacturers can also be an excellent solution. The main thing is to pay attention to the material of the bushings and the quality of the hinges. Cheap Chinese copies are often made of soft plastic that wears out quickly, or metal that rusts in one season.
- ✅ Original: quality guarantee, ideal geometry, high price.
- ✅ High-quality analogue: good value for money, long service life.
- ❌ Cheap fakes: rapid wear, risk of jamming, low reliability.
Before purchasing, be sure to compare the number of fasteners and the shape of the levers. On different generations Nissan Note (E11 and E12) trapezoids may differ in design. An incorrectly selected part simply will not fit into the standard places or will not work correctly.
- Only original
- High-quality analogue
- Used part from disassembly
- Repairing an old trapezoid
Necessary tools and preparation
The process of replacing a trapezoid with Nissan Note does not require complex special tools, but the presence of certain keys and accessories will significantly speed up the work. Preparing the workplace and tools is the first step to a successful repair that will eliminate the loss of small parts.
You will need a socket set, an extension, a wrench, and possibly a flat-head screwdriver to pry the fasteners open. Don't forget to use joint and bushing lubricant, as well as penetrating fluid (WD-40) to treat sticky bolts. It is better to work with gloves so as not to cut your hands on the edges of the body.
☑️ Preparing to replace the trapezoid
Before starting work, it is necessary to remove the windshield wiper blades. To do this, you need to bend the lever away from the glass, press the lock and remove the rubber. Be careful not to scratch the windshield if the lever slips. Also remove the plastic covers (jabot) covering the mechanism.
The plastic cover is secured with clips and several bolts. Carefully unclip the fasteners using a flathead screwdriver and unscrew the fasteners. Remove the cover by prying it from the bottom and place it in a safe place. Below it you will see the trapezoid itself and the electric motor.
⚠️ Attention: Plastic frill clips are very fragile, especially on a cold car. If they break, you will have to buy them separately, since a broken clip can cause the pad to vibrate and cause squeaks.
Step-by-step instructions for dismantling
Dismantling the old trapezoid begins with turning off the electrical part. Disconnect the power connector from the wiper motor. This must be done first to avoid a short circuit if the ignition is accidentally turned on.
Then you need to unscrew the bolts securing the engine to the car body. Usually there are two or three, depending on the modification Nissan Note. After unscrewing the bolts, carefully remove the motor along with the gearbox from the seat. Be careful not to damage the rubber seal.
Now let's move on to disconnecting the trapezoid rods from the levers going out onto the hood. To do this, you need to unscrew the nuts securing the levers. Usually a 10 or 12 socket is used. If the nuts are stuck, pour plenty of penetrating liquid onto them and let them sit for a few minutes.
- 🔧 Unscrew the nuts securing the levers to the trapezoid shafts.
- 🔧 Remove the levers, gently rocking them so as not to damage the splines.
- 🔧 Unscrew the bolts securing the trapezoid itself to the car body.
After all the fasteners are unscrewed, carefully remove the trapezoid from the engine compartment. This may be awkward due to the tightness, so go slowly. Be careful not to snag the windshield washer wiring or hoses.
What to do if the nuts are stuck?
If the arm nuts do not come off, use heat or a penetrating lubricant. Sometimes using an impact screwdriver helps. Under no circumstances try to rip off the nut with a jerk, so as not to break the trapezoid shaft.
When removing, pay attention to the condition of the bushings and hinges. If they are badly worn, this will confirm the need for a complete replacement of the unit. Also check the condition of the splines on the shafts coming out of the trapezoid. If they are licked, the new trapezoid may not transfer force to the levers.
Dismantling an old trapezoid requires care with plastic elements and fasteners, as damaged splines or broken clips can lead to additional costs.
Installation of a new trapezoid and assembly
Installation of a new trapezoid is carried out in the reverse order. Before installation, be sure to lubricate all bushings and hinges with special silicone grease or lithol. This will ensure smooth operation and extend the service life of the mechanism, especially in winter.
Then install the trapezoid in its original place and secure with bolts. Do not tighten them all the way all at once; tighten all the fasteners first to align the assembly. Make sure that the trapezoid is level and not distorted relative to the body.
Install the levers on the trapezoid shafts and tighten the fastening nuts. It is important not to overtighten the nuts so as not to deform the bushings, but also not to leave them too loose. The levers should fit tightly, without play, but at the same time rotate freely during operation.
| element | Recommended tightening torque | Note |
|---|---|---|
| Arm nuts | 15-20 Nm | Use a torque wrench |
| Trapezium mounting bolts | 10-15 Nm | Tighten crosswise |
| Motor mounting bolts | 20-25 Nm | Check for washers |
After installing the trapeze, connect the motor and connect the power connector. Turn on the ignition and check the operation of the wipers. They must move synchronously, without delays or extraneous sounds. Make sure the brushes stop in the correct position on the glass.
If everything works properly, you can install the plastic cover (frill) back. Insert it into place, pressing the clips until they click, and tighten the fastening bolts. Don't forget to replace the windshield wiper blades by securing them to the arms.
Before final assembly, run the wipers for a couple of cycles to make sure the mechanism is working properly. This will avoid having to disassemble again if you notice an error.
Common mistakes and how to avoid them
Even experienced craftsmen sometimes make mistakes when replacing a trapezoid with Nissan Note. One of the most common problems is improperly installed levers. If the levers are placed in the wrong position, the wipers will stop in the wrong place, riding on the glass frame or not reaching the edge.
Another mistake is lack of lubrication. Many people believe that a new part does not need additional processing, but factory lubricant is often insufficient or dries out quickly. Lack of lubrication will lead to rapid wear of the bushings and the appearance of squeaks within a few months.
It is also worth paying attention to the mounting of the electric motor. If the bolts are not tightened evenly, the gearbox may operate misaligned, which will lead to premature failure. Always check the tightness of all fasteners after completion of work.
- ❌ Error: Installing levers without checking the original position.
- ❌ Error: Ignoring lubrication of hinges and bushings.
- ❌ Error: Uneven tightening of the motor mounting bolts.
It is also important to check the operation of the washer system after assembly. Sometimes, when removing the frill, injectors or hoses can be damaged. Make sure the water splashes are in the right place and not running under the hood.
The quality of assembly and proper lubrication of components are just as important as the replacement of the part itself, since the durability of the repair depends on these factors.
If you are not confident in your abilities or do not have the necessary tools, it is better to entrust the work to professionals. Incorrect installation can lead to damage not only to the trapezoid, but also to the windshield or electric motor.
FAQ: Frequently asked questions
How long does it take to replace a trapezoid on a Nissan Note?
On average, the replacement process takes from 1.5 to 2.5 hours, depending on the experience of the technician and the condition of the fasteners. If the nuts are stuck, it may take longer.
Do I need to change the wiper motor along with the trapezoid?
No, if the motor is working properly and has no backlash, you can leave it. However, it is recommended to check its condition before installing a new trapeze.
Is it possible to lubricate the old trapezoid instead of replacing it?
This is only possible in the initial stages of wear. If there is severe play or deformation of the levers, lubrication will not help and the problem will return very quickly.
How to check the functionality of a new trapezoid before installation?
Try turning the shafts by hand. The movement should be smooth, without jamming or noticeable resistance. Also check for any play in the hinges.
What tools are needed for replacement?
You will need a socket set, extension, wrench, flat head screwdriver and penetrating lubricant. A torque wrench is desirable, but not required.