The first-generation Nissan Murano, known as the Z50, gained popularity due to its crossover comfort and smooth ride. However, over the years of operation, many owners are faced with the need to restore the chassis, since the service life of standard elements is not endless. The rear suspension in this model has its own design features that directly affect the vehicle’s handling and safety when driving on Russian roads.
Owners Nissan Murano The importance of timely maintenance of the rear axle is often underestimated, focusing only on the front elements. Meanwhile, it is the rear multi-link system that is responsible for the stability of the car when cornering and braking. Ignoring even minor knocks can lead to accelerated tire wear and more expensive breakdowns in the future.
Z50 rear suspension design features
Rear suspension Nissan Murano The Z50 is designed according to an independent multi-link system. This solution provides an excellent balance between comfort and controllability, but makes diagnostics and repairs more difficult than with bridge structures. The system is based on longitudinal and transverse arms connected to the body through silent blocks from a special rubber-metal composition.
An important design detail is the presence of a stabilizer bar, which is attached to the arms through the struts. This element is critical to preventing severe body roll in corners. If the stabilizer struts fail, you will notice characteristic metallic knocks when driving over uneven surfaces, which is often confused with a malfunction of the shock absorbers.
The specificity of the Z50 suspension also lies in the use springs with progressive stiffness characteristics. This allows the car to ride softly over small bumps, but remain rigid under heavy loads. The shock absorbers installed in this model are gas-filled, which provides rapid damping of vibrations, but requires special attention to the condition of the anthers and bump stops.
- 🛠️ Multi-link design ensures high accuracy of the movement trajectory
- 🔧 The use of reinforced silent blocks requires special equipment for replacement
- ⚙️ Factory suspension geometry is sensitive to disturbances due to improper assembly
Typical faults and wear symptoms
The most common rear suspension problem Nissan Murano is the destruction of the silent blocks of the levers. Over time, rubber hardens, cracks and loses its damping properties. You may notice that the car has become less stable on the highway, and when passing speed bumps, a dull thud appears that is transmitted to the body.
Another common culprit is the rear shock absorbers. Unlike the front ones, they are less loaded, but due to design features and lack of protection from dirt, they often fail prematurely. If you see oil streaks on the shock absorber body or notice that the wheel no longer fits snugly to the road on bumps, you need to replacing shock absorbers.
We cannot exclude wear of the ball joints, although in some modifications they are non-separable and are replaced together with the lever. Play in the ball joints leads to wheel play, which feels like “wobbly” steering and steering wheel wobble at high speeds. Regularly checking the condition of these nodes is the key to your safety.
⚠️ Attention: If you hear a metallic grinding sound when turning the rear wheels, stop immediately. This may mean that the suspension arm is deformed or torn from its mounts, which creates a direct risk of loss of control.
- 🔍 Visual inspection for cracks in rubber bushings
- 🚗 Checking the absence of play in the ball joints on the lift
- 📉 Checking springs for chips and signs of corrosion
Diagnostics and testing of suspension components
For high-quality diagnostics of the rear suspension, you will need a lift or inspection pit. Visual inspection often does not give a complete picture, so it is necessary to use a mount to check for play in silent blocks. If the rubber part of the bushing rotates freely inside the metal cage or has deep cracks, the element must be replaced.
Particular attention should be paid to the condition of the shock absorber boots. A torn boot allows dust and moisture to enter the rod, which leads to rapid wear of the seal and loss of tightness. Also check the bump stops - if they have turned into crumbs, the shock absorber will work at maximum load and fail in no time.
When diagnosing, use a specialized testing tool leverage. Simply rocking the wheel with your hands may not be enough, as the play may be hidden. Professionals use levers to create stress on the components, simulating the movement of the suspension to reveal hidden defects.
- up to 100,000 km
- 100,000 - 200,000 km
- more than 200,000 km
- Don't know
The process of replacing rear arms and silent blocks
Replacement of rear arms Nissan Murano - a labor-intensive process that requires compliance with a sequence of actions. First you need to dismantle the wheel and unscrew the nuts securing the shock absorber to the lever. Then the anti-roll bar link is disconnected. Be careful: the spring is under high pressure.
After removing the shock absorber and stabilizer, you can unscrew the bolts securing the lever to the body and hub. Difficulties often arise here with soured bolts. Use penetrating lubricant and a quality socket wrench. If the bolt does not budge, it is better to apply heat, but carefully so as not to damage the rubber elements of neighboring units.
An important step is to properly tighten the bolts. It is necessary to tighten the fastenings of the suspension arms under load, that is, when the car is standing on wheels or lowered on a stand that simulates the weight of the body. This will prevent premature wear of the silent blocks and maintain the correct suspension geometry.
☑️ Preparation for replacing levers
- 🔩 Use a torque wrench to accurately tighten bolts
- 🛡️ Be sure to clean the seats from dirt and rust
- ⚖️ Check the condition of the wheel bearings with the lever removed
What is the difference between replacing silent blocks and replacing a lever assembly?
Replacing silent blocks requires a special press and time, but is cheaper. Replacing the control arm assembly is faster, but more expensive since you are buying both the ball joint and the control arm, even if they are intact.
Comparison of original spare parts and analogues
Selection of spare parts for Nissan Murano Z50 is always in front of the owner: original or high-quality analogue? Original silent blocks and levers are distinguished by high quality rubber and precision manufacturing, but are expensive and not always available in stock.
Analog manufacturers offer a wide range of solutions. Some brands use harder rubber, which increases bushing life but may reduce comfort. Others, on the contrary, make soft bushings, improving smoothness but reducing service life. It is important to choose trusted manufacturers specializing in Japanese cars.
Metal is critical for levers. Cheap analogues are often made of soft metal, which is easily deformed upon impact. This leads to wheel alignment failure and rapid failure of new parts. Don't skimp on safety by choosing options that are too cheap.
| Manufacturer | Part type | Benefits | Disadvantages |
|---|---|---|---|
| Nissan (Original) | Lever assembly | Ideal geometry, durability | High price, long delivery |
| CTR | Lever/Silent block | Excellent quality, affordable price | May not be available everywhere |
| 555 | Shock absorber | Balance price/quality | Softer than original |
| KYB | Shock absorber | Rigidity, reliability | Reduced comfort on bad roads |
Wheel alignment adjustment and final checks
After replacing any rear suspension elements that affect the geometry, tuning is required wheel alignment. On Nissan Murano The Z50 rear suspension has camber and toe adjustments, which are often forgotten to adjust. Incorrect wheel alignment angles lead to uneven tire wear and poor directional stability.
The setup procedure involves mounting the car on the stand, attaching the sensors to the wheels and adjusting the eccentric bolts or special rods. The technician must achieve values close to factory parameters, taking into account suspension wear and driving style.
After completing the work, carry out a control test drive. The car should drive straight when the steering wheel is released, without pulling to the side. There should be no extraneous sounds when braking and turning. Check how the suspension works at different speeds.
Correctly adjusting the wheel alignment after replacing the levers extends the life of the tires by 30-40% and returns the car to factory controllability.
Tips for operation and service life extension
To make your rear suspension last longer, try to avoid sharp impacts of the wheels on curbs and deep holes at speed. Even the robust design Nissan Murano does not like extreme loads. Regular cleaning of the suspension in winter will help avoid corrosion of bolted joints, which will simplify future repairs.
Pay attention to the car's behavior. Any changes in driving behavior are a reason for immediate inspection. Do not wait until the part completely collapses and creates an emergency situation. A preventive inspection every 10-15 thousand kilometers will save you significant money in the future.
Pay special attention to the condition of the wheels. Tire pressure should be as recommended by the manufacturer. Excessive pressure makes the suspension stiff, and insufficient pressure increases the load on the levers and silent blocks.
⚠️ Attention: The use of non-standard rims with the wrong offset (ET) is strictly prohibited. This disrupts the suspension geometry and leads to rapid destruction of wheel bearings and levers.
If you are planning to replace rear shock absorbers, replace them strictly in pairs, even if the second one is still working. Different shock absorber stiffness will lead to car instability.
FAQ: Frequently asked questions
How often do you need to change silent blocks on a Murano Z50?
The average resource of original silent blocks is 80,000 - 100,000 km, but this depends on the quality of the roads. If knocks or cracks appear in the rubber, replacement must be carried out immediately, without waiting for the scheduled period.
Is it possible to drive with a faulty stabilizer link?
Technically it is possible to drive, but it is not recommended. A worn strut causes a knocking noise and reduces the car's cornering stability, which can become dangerous when maneuvering at high speeds.
Is it necessary to do a wheel alignment after replacing only the shock absorbers?
No, if the levers and adjusting bolts were not touched when replacing the shock absorbers, the wheel alignment angles do not change. Wheel alignment is only required when replacing arms or after heavy impacts on the suspension.
Why does the rear suspension knock even after replacing all the parts?
A common cause remains incorrect tightening of the suspension bolts without loading the wheels. The anti-roll bar can also make a knock if its bushings or struts have not been replaced.
Does rear suspension affect fuel consumption?
Yes, a faulty suspension increases rolling resistance and worsens aerodynamics due to changes in ground clearance and wheel alignment, which can slightly increase fuel consumption.