Chassis system Nissan Murano The first and second generations experience serious loads, especially under operating conditions on our roads. One of the key stress points is the assembly connecting the wheel to the steering knuckle - the hub. This is where it is located front wheel bearing, responsible for the smooth rotation and precision of vehicle control.
Ignoring early signs of a malfunction can lead to critical consequences, including wheel jamming while driving. Many crossover owners Nissan Murano are faced with the problem of noise or play, but do not always understand that this is a direct signal about the need for replacement. Timely diagnosis of the hub assembly on a Nissan Murano allows you to avoid costly repairs to the steering rack and brake system.
Design features of the unit and operating conditions
On Nissan Murano the second generation (Z51) and restyled versions use an integrated hub unit. This means that wheel bearing pressed into the housing and is often supplied complete with an ABS ring and speed sensor. This design increases reliability, but complicates repairs when defects occur.
The car has a solid weight and a powerful engine, which creates a colossal axial and radial load on the front axle. When driving over uneven surfaces, especially with all-wheel drive engaged ALL MODE 4x4-i, shock loads are transmitted directly to hub. The quality of the road surface in our country rarely contributes to the durability of the chassis.
Moisture and dirt entering the bearing operating area through an oil seal or damaged boot are the main enemies of lubrication. If the seal is broken, metal shavings quickly escape bearing out of order. Therefore, regularly checking the condition of the boots and seals is critical to extending the service life of the unit.
Main symptoms of malfunction and diagnostic methods
Determine what front wheel bearing requires replacement, based on a number of characteristic signs. The most obvious symptom is a hum or howl that gets worse as you accelerate. The sound often changes depending on the turn of the steering wheel: when turning in one direction, the load is transferred to one wheel, and the hum may subside or, conversely, intensify.
In addition to noise, wheel play indicates problems. To check, you need to lift the car on a lift or jack and swing the wheel in a vertical plane. If you feel hub play or hear a knocking noise, the unit requires immediate attention. On Nissan Murano this is often accompanied by vibration in the steering wheel.
- 🔊 Constant hum that changes when you turn the steering wheel
- 📉 Vibration of the steering wheel and body when driving at high speed
- ⚙️ Wheel play when shaking with hands
- 💡 The ABS lamp on the dashboard comes on due to a sensor failure
It is important to distinguish the noise of a wheel bearing from the sound of worn ball joints or silent blocks. If you hear a dull knock when driving over bumps, the problem may not be with the bearing. However, if the hum is monotonous and increases in proportion to engine speed, the diagnosis is almost obvious.
⚠️ Attention: Do not ignore ABS system signals. If the wheel speed sensor is dirty or damaged due to bearing wear, the system may block the ESP and braking system, which is dangerous on slippery roads.
Selection of quality spare parts and original analogues
When choosing wheel bearing for Nissan Murano It is important to understand the difference between the original and high-quality analogues. The official part number changes frequently depending on the year of manufacture and type of drive. Never buy a part “by eye” without checking the car’s VIN code.
Among the manufacturers that have proven themselves in the market, several brands can be distinguished. Japanese and European suppliers offer products that are close to the original in terms of characteristics. Cheap Chinese analogues often do not withstand even half of the declared resource and can be destroyed in transit.
| Manufacturer | Product type | Indicative resource | Features |
|---|---|---|---|
| Nissan (OEM) | Hub assembly | 100,000+ km | Ideal geometry, high price |
| SNR | Bearing | 80,000 - 100,000 km | Market leader, often comes in the original |
| NTN | Bearing | 90,000+ km | High rigidity, reliability |
| FAG | Bearing | 85,000+ km | Excellent lubrication, moisture resistance |
If you are planning to replace only the internal element, make sure that it fits properly. However, in practice, the entire assembly is often replaced hub assembly, as this saves time and eliminates errors during pressing. For Nissan Murano Z51, replacing an individual bearing is technically possible, but requires special tools.
- Original Nissan
- SNR
- NTN
- FAG
Tools and preparation for replacing the hub
Replacement front wheel bearing on Nissan Murano - a task of medium complexity, requiring a garage and a certain set of tools. You will need a jack, reliable stands (goats), a wheel wrench and a set of sockets. Pay special attention to the choice of tool for unscrewing the hub nut, since the tightening torque there is very high.
To dismantle an old unit, a hydraulic press or a special puller is often required, since pressing in takes place with great force. If you are replacing the hub assembly, the process is simplified, but still requires removal of the brake caliper and steering knuckle. Be prepared for the bolts to become stuck due to salt and dirt.
- 🔧 Socket wrenches and sockets for 12, 14, 17, 19, 21, 24 mm
- 🔨 Hammer, pry bar and circlip remover
- 💨 A can of WD-40 or similar penetrating lubricant
- 🔩 Torque wrench for proper tightening
☑️ Preparing to replace the hub
⚠️ Warning: Never work under a vehicle that is supported only by a jack. Be sure to use safety stands under the sill or control arm. A jack failure can result in serious injury.
Before starting work, it is recommended to remove the negative terminal from the battery if you plan to disconnect the ABS sensor connector. This will protect the electronics from accidental short circuits. Also clean the area around the hub of any dirt to prevent it from getting inside the new unit during reassembly.
Why won't the hub nut come off?
Often the nut gets stuck due to lack of lubricant on the threads. Use a special wrench extension and gently tap the end of the key with a hammer to knock off any rust. Do not use a gas wrench as this may damage the threads on the hub.
Step-by-step instructions for replacing a bearing
Start by removing the wheel and brake caliper. Unscrew the two bolts securing the caliper and hang it on a wire to the spring so as not to damage the brake hose. Next, you need to remove the brake disc by unscrewing the guide pins. Now access to hub completely open.
The next step is to disconnect the ABS speed sensor. Be extremely careful as the sensor wire is fragile and breaks easily. Unscrew the hub securing nut (it is located in the center of the disk). To do this, you will need a powerful wrench, since the tightening torque is about 200 Nm. If the nut does not budge, use heat.
After unscrewing the nut, remove the steering knuckle along with the hub. This may require disconnecting the arms and tie rod end. Carefully remove the old bearing or hub using a puller. Clean the seat in the steering knuckle from rust and dirt by treating it with sandpaper.
Before installing a new bearing, apply a thin layer of high-temperature grease to the outer race, but do not apply too much to prevent grease from leaking into the brake system.
The new assembly is pressed into the steering knuckle strictly under a press or using a special mandrel. Hitting the bearing with a hammer is unacceptable - it will destroy the internal structure. Make sure the retaining ring is installed correctly and fits snugly into the groove.
Correct pressing of the bearing is the key to its long service life. Never apply force through the inner races, only through the outer race or hub body.
Installation and final configuration of the car
After pressing, the new unit is installed in place. Tighten the hub nut to the required tightening torque. For Nissan Murano this parameter is strictly regulated and is usually 200-250 Nm, depending on the modification. Use a torque wrench to avoid over-tightening or under-tightening.
Reassemble all components in reverse order: put on the brake disc, install the caliper, connect the ABS sensor. Before lowering the car, rock the wheel to make sure there is no play. Tighten the wheel bolts, but do final tightening on the ground.
- 🚗 Drive the car at low speed, checking for noise
- 🔧 Check the tightness of all bolts after 500 km
- 🛠️ If necessary, do a wheel alignment, as the geometry may have changed
If noise appears after replacement, the ABS sensor may have been damaged or the unit may not have been fully tightened. Check the connectors and make sure all parts are in place. Regular condition monitoring bearing will help avoid repeated repairs.
⚠️ Attention: After replacing the wheel bearing with Nissan Murano Be sure to check the operation of the ABS and ESP systems. Sensor errors may be stored in the control unit's memory and require resetting by the scanner.
Frequently asked questions from Nissan Murano owners
Owners often ask questions about the resource and features of the replacement. Below are the answers to the most common ones, based on operating and repair experience.
How long does a wheel bearing last on a Nissan Murano?
On average, the resource ranges from 80,000 to 120,000 km. However, quality is affected by driving style and road conditions. If the surface is poor, replacement may be required after 50,000 km.
Is it possible to replace only the bearing and not the hub assembly?
Theoretically, yes, but this is a labor-intensive procedure that requires a press and special equipment. tool. In practice, the hub assembly is often replaced as it is faster and more reliable. The price of the assembled unit is not much different from the cost of a separate bearing.
Why does the ABS light come on after replacement?
This is often due to damage to the speed sensor wire during dismantling or dirt getting on the sensor. You may also need to reset errors through a diagnostic scanner.
How often should the condition of the bearing be checked?
It is recommended to carry out suspension diagnostics at every scheduled maintenance (every 10-15 thousand km). Pay attention to extraneous sounds when moving.
Does replacing a bearing affect wheel alignment?
If the levers and silent blocks were not changed during the replacement, the impact is minimal. However, due to the removal of the steering knuckle, the geometry may be slightly off, so checking the wheel alignment angles will not be superfluous.