Operation Nissan Note under Russian road conditions, it often leads to premature wear of the chassis, and one of the most vulnerable components is the wheel bearing. This part is responsible for the smooth rotation of the wheel and absorbs colossal radial and axial loads that occur when driving over uneven surfaces, sharp turns and braking. Ignoring signs of its failure can lead to critical consequences, including the wheel jamming while driving.
The replacement process requires not only the availability of high-quality tools, but also an understanding of the design features of the suspension of this particular model. Unlike some other cars, Nissan Note The hub assembly is often a non-separable structure, which dictates the need to completely replace the assembly unit. Correct diagnosis and careful installation of a new part guarantee safety and comfortable driving for many kilometers.
Symptoms of malfunction and diagnostics of the unit
You can understand that a wheel bearing requires replacement by a number of characteristic signs that appear gradually, but intensify over time. The very first and surest symptom is the appearance of a hum or buzzing sound coming from the wheel. This sound changes depending on the speed of travel: the higher the speed, the louder the noise. If, when you turn the steering wheel in one direction, the sound intensifies, and in the other, it subsides, this is a clear sign that the problem is in the bearing on the side where the load is transferred when turning.
In addition to acoustic signals, other physical sensations when driving a vehicle may also indicate a malfunction. Vibration transmitted to the steering wheel or body, especially at high speeds, may indicate destruction of the rollers or cage inside the assembly. It is also worth paying attention to the condition of the brake discs: uneven wear may be an indirect consequence of play in the hub caused by bearing wear. Diagnostics on the lift allows you to identify axial play of the wheel, which should not be present in a working car.
Modern security systems cannot be discounted. On Nissan Note An ABS sensor is often integrated into the hub. If the bearing is damaged, it can damage the sensor wiring or change the clearance, causing the ABS error light on the dashboard to come on. In this case, the scanner will show an error for a specific wheel, but this does not always mean that the sensor itself is faulty - the problem may be hidden inside the hub assembly.
β οΈ Warning: Do not try to drive with a heavily worn bearing, even for a short distance. Critical wear can lead to destruction of the assembly housing and wheel jamming, which can lead to loss of control and a serious accident.
For an accurate check, you need to lift the car and rock the wheel with your hands. If you feel a clear play when the wheel swings in a vertical plane (top-bottom), this is a sure sign that wheel bearing has lost its properties. However, if play is felt in the horizontal plane, the problem may be in the ball joint or steering joint, so it is important to carry out a thorough differential diagnosis.
- π A hum or howl that increases with speed and changes when turning.
- π Vibration on the steering wheel or body, especially at speeds above 60 km/h.
- β οΈ The ABS error lamp comes on due to damage to the sensor or play.
- π§ Wheel axial play during manual check on a lift.
Selection of spare parts and necessary tools
Before starting work, it is necessary to correctly select the components. In the auto parts market for Nissan Note There are many options available: from original parts to analogues of various brands. The original (Nissan) guarantees perfect compliance with all tolerances, but is often overpriced. High-quality analogues from such manufacturers as SKF, FAG, Koyo or Timken, are often not inferior to the original in terms of resource, and sometimes even surpass it, offering a more affordable price.
Particular attention should be paid to the design of the unit. For front wheel drive versions Nissan Note With front-wheel drive, the wheel bearing often comes complete with the hub and ABS sensor. This simplifies replacement, since there is no need to select a separate sensor, but it increases the cost of the part. It is important to check the package: the box should contain a complete set, including retaining rings and the necessary mounting bolts.
To perform the work you will need a set of specialized tools. A regular garage kit may not be able to handle jammed bolts, so stock up on a strong wrench and quality sockets. The key element is the puller, since without it, dismantling the hub can turn into a long and complicated procedure. You will also need a torque wrench for precise tightening of threaded connections and a jack with reliable stands.
βοΈ Replacement tools
- π§ Powerful wrench and heads (including E-heads for axle bolts).
- π¨ Puller for squeezing out a bearing or hub (depending on the design).
- π Torque wrench (important for tightening the hub nut).
- πΏ WD-40 or similar penetrating lubricant for soaking bolts.
Preparing the car and removing the wheel
Work should be carried out on a flat, hard surface, preferably in a garage or a specially equipped place. Before lifting the vehicle, it is necessary to loosen the wheel nuts without unscrewing them completely. This is done to prevent the wheel from turning when lifting. Then place wheel chocks under the wheels that remain on the ground to prevent the vehicle from accidentally rolling away.
Once the vehicle is jacked up and securely placed on stands, the wheel can be completely removed. Now you have access to the brake caliper and hub. It is important to clean the area around the caliper and hub bolts of dirt and rust. Use a wire brush and a can of cleaner to remove any residue that may be preventing the fastener from loosening.
The next step is to remove the brake caliper. To do this, you need to unscrew the two guide bolts located on the back of the caliper. Be careful not to damage the brake hose or allow dirt to enter the system. It is better to hang the removed caliper on a wire or hook to the suspension spring; under no circumstances leave it hanging on the brake hose - this can lead to its rupture or damage to the internal rubber.
β οΈ Attention: After removing the caliper, do not press the brake pedal! This will lead to pistons falling out of the cylinders, which will require complex repairs to the entire brake system.
Then the brake disc is removed. If it has stuck to the hub, you can carefully knock it out with a hammer through a wooden spacer. After removing the disk, full access to the hub and axle shaft bolt is available. The axle bolt is usually tightened to a high torque, so it will take significant force to unscrew it. If it does not budge, use an extension cord and a wheelbrace.
Before removing the axle bolt, apply a penetrating lubricant to the threads and head of the bolt and let it sit for 15-20 minutes. This will greatly facilitate the dismantling process and reduce the risk of thread breakage.
Removing the old bearing and hub
After removing the caliper and brake disc, you need to unscrew the hub nut. This nut has a very large diameter and is tightened with enormous force. Unscrewing it often requires a special wrench or the use of a piece of pipe to increase leverage. If the nut has a stopper, it must first be unbent. Be careful: when unscrewing the nut, the wheel may turn, so have a helper press the brake pedal or use a wheel stopper.
Next, you need to disconnect the ABS sensor if it is not integrated into the bearing itself. This is usually the connector that is located next to the hub. Carefully unfasten the clamp and move the wire to the side so as not to damage it during further work. Then remove the bolts securing the steering knuckle to the shock absorber strut and steering arm. This will free the hub and remove the axle shaft from engagement with the differential.
Now the main task is to remove the hub along with the old bearing. In most cases on Nissan Note the bearing is pressed into the steering knuckle, and the hub is located inside it. If you are changing the assembly (hub + bearing), then simply knock the hub out of the fist. If you are only replacing the bearing, you will need a puller to press the hub out of the old bearing, and then press the bearing itself out of the knuckle.
Hub design features
On some Nissan Note versions, the wheel bearing is part of the steering knuckle assembly. In this case, replacement requires removing the entire knuckle and sending it to the station to replace the bearing or purchase a new assembly, which increases the cost of repairs, but simplifies the process.
Use a puller to carefully press out the part. Do not hit the bearing or hub directly as this may damage the seating surfaces or destroy fragile components. If you donβt have a puller, you can use a powerful vice with suitable spacers. It is important to control the process so as not to damage the threads on the axle shaft or the bearing seat in the knuckle.
- π© Unscrew the hub nut using a powerful lever and an assistant.
- π Disconnect the ABS sensor and carefully move the wire to the side.
- π§ Unscrew the bolts securing the steering knuckle to the strut and lever.
- π Remove the axle shaft from the hub using a mounting spatula.
- Complete set of pullers
- Just a jack and keys
- Puller, but no torque wrench
- You need to buy everything
Installation of a new unit and assembly
Before installing a new part, be sure to clean the seat in the steering knuckle from rust and dirt. Use sandpaper or a wire brush to ensure the surface is perfectly smooth. Apply a thin layer of grease to the seat, but be careful not to overdo it so that the grease does not get inside the bearing. If you are replacing an assembly, make sure all bolts and nuts are new, as old ones may be warped.
Installation of a new bearing is carried out using a press or a powerful vice. Pressing must be done strictly along the outer ring of the bearing. If you put pressure on the inner ring or cage, you will immediately damage the mechanism and the bearing will fail within a few kilometers. Drive the bearing all the way in, making sure it is level and not warped. After installation, insert the hub into the new bearing, also pressing it onto the inner ring.
Reassemble the assembly in reverse order. Insert the axle shaft into the hub and tighten the hub nut. Here it is critical to comply with the tightening torque specified in the manufacturerβs regulations. For Nissan Note this is usually about 150-200 Nm, but the exact value must be looked at in the technical documentation. Tightening is done with a torque wrench. After this, secure the steering knuckle to the strut and lever by tightening the bolts to the required torque.
The main idea: The bearing must be pressed strictly along the outer ring, and the hub - along the inner ring. Violation of this rule will lead to immediate failure of the part.
Install the ABS sensor if it was removed separately and connect the connector. Check all connections for tightness and make sure there are no gaps. Install the brake disc and caliper and tighten the guide bolts. Before lowering the vehicle, double check that all tools are removed from under the vehicle and that no one is standing nearby.
Functionality check and final tests
After assembly, a control check must be carried out. Install the wheel, but do not fully tighten the nuts. Lower the vehicle to the ground and tighten the wheel bolts to the correct torque. Start the engine and test the brakes by pressing the pedal several times to ground in the pads. Listen to the sounds: there should be no hum, and the wheel should rotate freely without jamming.
Take it for a test drive. Start slowly and gradually increase your speed. Pay attention to the car's behavior when turning. If there is no hum and the steering wheel does not vibrate, then the job was completed successfully. Check the operation of the ABS system: when braking hard on a dry surface, the system should operate correctly, without errors on the dashboard.
After 500-1000 kilometers, it is recommended to recheck the tightness of the hub and axle shaft bolts. Threaded connections may βsagβ a little after the first load. Also check the condition of the lubricant in the bearing and the absence of leaks. Regular monitoring will help avoid repeated repairs and ensure safety.
| Parameter | Meaning for Nissan Note | Tool |
|---|---|---|
| Hub nut tightening torque | 150-180 Nm | Torque wrench |
| Axle bolt tightening torque | 80-100 Nm | Torque wrench |
| Caliper bolt tightening torque | 30-40 Nm | Torque wrench |
| Bearing type | Double row ball | Puller/Press |
β οΈ Attention: Do not skimp on a torque wrench. Insufficient tightening of the hub nut can lead to it unscrewing itself and the wheel falling off, and excessive tightening can lead to the destruction of the threads or deformation of the bearing.
FAQ: Frequently asked questions
Do I need to replace the bearing on only one side or both at once?
If the bearing fails on one side, it is recommended to check the condition of the second unit. With a mileage of more than 100,000 km, it makes sense to replace both bearings at the same time to avoid repeated repairs and imbalance in the suspension. However, if the second unit is in perfect condition and has less mileage, only one can be replaced.
Is it possible to drive with a faulty wheel bearing?
Strongly not recommended. Even a slight hum indicates structural destruction. At any moment, the bearing can seize, which will lead to loss of control, especially at high speed. The risk of an accident is too great to delay repairs.
How long does it take to replace a wheel bearing?
For an experienced technician, replacing one bearing takes from 1.5 to 2.5 hours. If you do not have experience and a special puller, the process may take 4-5 hours. It is important not to rush and do everything carefully so as not to damage other components.
What happens if you don't replace the ABS sensor when replacing the bearing?
If the ABS sensor is damaged or not replaced along with the bearing (if it is assembled), the ABS error will appear on the instrument panel. This means that the anti-lock brakes do not work, which increases stopping distance on slippery roads.