Crossover rear suspension Nissan Qashqai The second generation (J11) features a complex multi-link design that provides excellent handling and comfort at high speeds. However, it is in this area that problems most often arise with rubber-to-metal hinges, known as silent blocks. When they wear out, the driver begins to feel extraneous knocks, vibration on the steering wheel and deterioration in directional stability, which requires immediate intervention.
Ignoring signs of wear can lead to more serious damage, such as destruction of the lever or failure of other components of the chassis. Model replacement process J11 has its own characteristics related to the design of the rear beam and the need to use specialized tools for pressing new parts.
Causes of failure and signs of wear
The main reason for premature failure rear silent blocks is an aggressive driving style on Russian roads, where the quality of the surface often leaves much to be desired. The rubber part of the hinge experiences enormous loads when driving over uneven surfaces, which leads to cracks, delamination of the rubber from the metal bushing, or complete destruction of the elastic element.
The second factor is the impact of aggressive chemicals used to combat ice, as well as temperature changes that make the rubber oaky and brittle. Over time, the material loses its shock-absorbing properties and ceases to dampen vibrations, transferring them directly to the car body.
- The appearance of dull knocks when driving through small irregularities or holes.
- Vibration from the rear of the body, transmitted to the seats and steering wheel.
- The car pulls to the side when braking for no apparent reason.
- Uneven tire wear, especially on the inner edge of the tread.
If you notice at least one of the listed symptoms, you need to urgently diagnose the chassis. Excessive wear can cause the suspension arm to become deformed, making replacement inevitable, which will significantly increase the cost of repairs.
⚠️ Attention: Do not put off replacing silent blocks even if there is a slight knock. The destruction of the rubber part can cause the metal bushing to begin to rub against the lever, which will lead to its chipping and the impossibility of installing a new element without replacing the lever assembly.
Selection of quality spare parts and components
When choosing new silent blocks for Nissan Qashqai J11 It is important to consider that there are many fakes on the market that do not withstand even short-term use. Original parts from the manufacturer are usually designated by code 54510-1KC0A (for the external hinge) and 54510-1KC0B (for the internal one), but their cost often deters car owners.
There are proven analogues from the world's leading manufacturers that offer the best price-quality ratio. Many mechanics recommend polyurethane products because they are more durable, but they transmit more vibrations into the interior, which can reduce comfort levels. Classic rubber provides softness, but lasts less.
- The original (Nissan) is the standard of quality, but the price is high.
- Lemforder - German quality, often installed on the assembly line.
- Febi Bilstein is a reliable analogue with a good reputation.
- Corteco is a great balance between softness and durability.
If you choose to install polyurethane products, make sure they are designed specifically for your vehicle and have the correct hardness. Too hard a material can lead to rapid wear of the levers and the appearance of new knocks, as the suspension will no longer work as normal.
- Rubber (original)
- Polyurethane (hardness)
- Complex analogues
- I don't know, please advise
Necessary tools and vehicle preparation
To carry out the work, you will need a lift or inspection hole, since access to the rear suspension from below is a prerequisite. You also need to prepare a reliable set of wrenches, a ratchet and a 17, 19 and 21 mm socket, which are most often used when disassembling the suspension.
The most important tool in this process is pressing press silent blocks. Without it, replacement is almost impossible, since the old bushings are removed with enormous effort, and the new ones must be installed perfectly evenly. In a garage, you can use a hydraulic jack and special mandrels, but this requires skill and caution.
- Hydraulic press or puller for silent blocks.
- A set of sockets and extensions for accessing hard-to-reach bolts.
- Hammer and pry bar for dismantling the levers.
- Silicone or lithol based lubricant to facilitate installation.
Before starting work, the vehicle must be securely supported on supports. The wheels must be removed to gain full access to the suspension arms and brakes. Make sure the machine is on a level surface and cannot roll or fall off the lift.
☑️ Preparation for replacement
Step-by-step instructions for dismantling and replacement
Start the process by unscrewing the bolts securing the lever to the body. On Nissan Qashqai J11 The bolts may be stuck, so use a penetrating lubricant and give it time to work. Unscrew the nuts securing the arms to the rear hub and carefully lower the arm down.
Next you need to remove the old silent block. To do this, use a puller or press. Install a mandrel that matches the diameter of the bushing and slowly press out the old element. If the rubber part has collapsed, you will have to use a grinder or knife to carefully cut out the remaining rubber without damaging the metal body of the lever.
Before installing a new silent block, thoroughly clean the seat from rust and dirt. Apply a thin layer of silicone grease to the outer surface of the new bushing - this will make pressing easier and prevent damage to the rubber during installation. Make sure that the new part fits into the lever housing all the way and is level.
How to properly press in a silent block in a garage?
If you don't have a professional press, you can use a hydraulic jack and two metal plates with cutouts. Place the lever between the plates, install the jack and slowly apply pressure, making sure the bushing moves straight. Do not allow distortion!
After pressing the new element, the lever is installed in place. It is important to tighten the mounting bolts only after the vehicle is lowered on its wheels. This is necessary to ensure that the rubber of the silent block is not twisted under load, which will extend its service life.
Use a torque wrench to tighten the arm bolts. The tightening torque for the rear bolts securing the lever to the body is 110 Nm, and to the hub - 100 Nm. Do not tighten by eye, so as not to strip the threads or deform the rubber.
Typical mistakes and advice from experts
One of the most common mistakes is trying to replace only one silent block. If noise occurs in the rear suspension, always replace parts in pairs on both sides of the vehicle. Otherwise, different suspension stiffness will lead to uneven tire wear and unstable car behavior on the road.
Also, many car owners forget to check the condition of the levers themselves. If the metal has cracks or traces of deep corrosion, replacing the silent blocks does not make sense - the entire lever will have to be replaced. Inspect all mounting holes for ovality.
Another nuance concerns the tightening of bolts. If you tighten them by weight and then lower the car, the rubber will be constantly under tension, which will lead to its rapid destruction. Always tighten the fasteners after the wheels touch the ground.
⚠️ Attention: Never use a hammer to knock out an old silent block if you are not confident in your abilities. Impacts on the metal bushing can deform the lever body, making it impossible to install a new element.
Cost of work and repair time
On average, replacing rear silent blocks with Nissan Qashqai J11 takes from 2 to 4 hours depending on the qualifications of the specialist and the availability of the necessary equipment. If the bolts are strongly stuck, the time may increase. At a service center, the cost of work for one side is usually about 3000-5000 rubles, excluding spare parts.
| Component | Approximate price (RUB) | Service life (km) |
|---|---|---|
| Rear silent block (original) | 2500 - 4000 | 80 000 - 100 000 |
| Rear silent block (analog) | 1200 - 2000 | 50 000 - 70 000 |
| Polyurethane analogue | 1500 - 2500 | 60 000 - 80 000 |
| Lever assembly (original) | 15 000 - 25 000 | 150 000+ |
If you decide to do the repairs yourself, you can save on the cost of the work, but you will have to spend money on buying tools or renting a press. As a result, the savings will be from 5,000 to 10,000 rubles, but this will require time and physical strength.
⚠️ Attention: Replacing silent blocks requires precise pressing, since misalignment of the bushing by more than 1-2 degrees will lead to rapid destruction of the rubber and repeated repairs after several thousand kilometers.
Wheel alignment adjustment after replacement
After replacing the rear silent blocks with Nissan Qashqai J11 It is imperative to carry out the wheel alignment adjustment procedure. Changing the suspension geometry even by a fraction of a millimeter can lead to incorrect wheel alignment.
On the rear axle of this model, the wheel alignment angles are not manually adjustable, as they depend on the position of the levers. If mistakes are made during replacement or the arms are not tightened correctly, the wheels may be at an incorrect angle, causing the tires to wear out quickly.
The procedure is performed on a special stand, where the operator scans the position of the wheels and makes recommendations. If the geometry is broken, it may be necessary to replace the levers or use adjusting bolts, if provided by the design.
Adjusting the wheel alignment after replacing silent blocks is mandatory to preserve the service life of the tires and the safe behavior of the car on the road.
Frequently asked questions from owners
Is it possible to drive with worn rear silent blocks?
In the short term, yes, but it is dangerous. A damaged silent block changes the geometry of the suspension, which can lead to loss of control at high speeds or during sudden braking. It is recommended to replace them as soon as possible.
How many silent blocks are there in the rear suspension of the Qashqai J11?
The rear suspension of each lever usually has two silent blocks: internal and external. There are two of them on one side, which means four of them are needed for all rear axles. However, some designs may vary depending on the year of manufacture and type of suspension.
Is it possible to replace silent blocks without removing the lever?
Theoretically, it is possible if there is access to the press from below, but in practice this is extremely inconvenient and often impossible due to the design features of the body. Removing the lever greatly simplifies the process and allows for quality work.
Why does the suspension rattle after replacement?
The reason may be that the bolts are not properly tightened (not loose), a defective part, or that other elements, such as shock absorbers or supports, have been worn out. It is also possible that the lever was deformed during dismantling.
What is the service life of polyurethane silent blocks?
Polyurethane lasts longer than rubber, usually up to 80-100 thousand kilometers, but it is tougher. Owners note that ride comfort decreases, and vibrations from the road become more noticeable in the cabin.