Crossover owners Nissan Murano often face the problem of deterioration in controllability and the appearance of extraneous sounds when turning the steering wheel. This part, which is a key element of the transmission, is subject to natural wear and tear over time, especially in Russian roads with their unevenness and aggressive chemical reagents.
Ignoring the first signs of a malfunction can lead to a critical loss of controllability at the most inopportune moment, which can lead to serious accidents. Timely diagnosis and replacement steering rack - this is not just a matter of comfort, but a direct necessity to ensure the safety of you and your passengers on the road.
Why does the steering rack fail on a Nissan Murano?
Steering mechanism design Nissan Murano the second and third generations involve the use of both hydraulic and electric boosters. Despite their high reliability, the nodes are subject to enormous loads. The main cause of failure is often the penetration of moisture and dirt through damaged boots, which leads to corrosion of the shafts and wear of the gear pair.
It is important to understand that even minor impacts to the suspension can shift the rack geometry or damage the internal seals. Hydraulic rack is especially sensitive to the quality of the working fluid: if you do not change the oil in the hydraulic booster on time, the pump can clog the system with chips, which will quickly damage the rack itself.
The next factor is temperature changes. In winter, the rubber of the seals hardens, and the metal contracts, creating gaps through which oil leaks. In summer, on the contrary, overheating of the amplifier system accelerates the degradation of the lubricant. Electric power steering suffers from overload on the electronics when the driver holds the steering wheel in the extreme position for too long, causing the engine to overheat.
⚠️ Attention: Operating a vehicle with a leaking rack can lead to the steering mechanism jamming while driving, which poses a direct threat to life.
Symptoms indicating the need for replacement
You can determine the malfunction even before visiting the service center, simply by listening to the behavior of the car. The most obvious signal is the appearance of play in the steering wheel when you turn the steering wheel a few degrees, and the wheels react with a delay. This indicates wear of the gear pair or loosening of the fastening.
Also, pay attention to extraneous sounds. A knocking sound when driving over bumps or a grinding noise when turning the steering wheel in place are sure signs that the internal elements Nissan Murano require intervention. In the case of hydraulics, a frequent symptom is the need to constantly add fluid to the booster reservoir.
- 🔊 The appearance of a hum or buzzing sound when turning the steering wheel, especially at low speeds.
- 💧 Traces of oil on the inside of the front wheels or on the steering rod boots.
- 🚗 The car is pulled to the side when driving in a straight line, if the deviation is not related to wheel alignment.
Sometimes the problem is disguised as a suspension malfunction, so the diagnosis must be comprehensive. The technician must check not only the rack itself, but also the condition of the steering rods, tips and silent blocks. Steering shaft play can also simulate a rack breakdown, but is much cheaper to fix.
- Knocking in the steering wheel
- Oil leakage
- Steering play
- Power steering noise
Choosing a spare part: original or analogue?
Spare parts market for Nissan Murano is oversaturated with offers, and choosing the right option can be difficult. The original is always the standard of quality, ensuring durability and precision, but its price often deters owners. Original steering rack may cost 2-3 times more than analogues.
Analogues from trusted manufacturers can be a worthy alternative. Companies specializing in steering mechanisms often offer products that are not inferior in performance to factory ones, but are cheaper. It is important to avoid cheap fakes from unknown brands that may fail after just a couple of months.
Repair kits are another option if the rack housing is intact. They include new seals, bushings and seals. This is economically beneficial, but requires highly qualified craftsman, since incorrect assembly will lead to rapid re-failure.
| Part type | Average cost (RUB) | Service life | Recommendation |
|---|---|---|---|
| Original (Nissan) | 80 000 - 120 000 | 100,000+ km | For new cars and warranty period |
| High-quality analogue (CPI, TRW) | 35 000 - 55 000 | 60,000 - 80,000 km | Optimal choice in terms of price/quality |
| Repair kit | 5 000 - 10 000 | 30,000 - 40,000 km | Only if the case is in perfect condition |
| Used spare part | 15 000 - 25 000 | Unpredictable | Temporary solution, high risk |
When choosing, be sure to check the spare part number, as for different generations Nissan Murano (Z50, Z51, Z52) rails may differ in mounting and amplifier characteristics. An incorrectly selected part will not fit into the seats, and you will have to return it to the seller.
⚠️ Attention: When buying a used rack from disassembly, you cannot know its real resource, which can be hundreds of thousands of kilometers.
DIY steering rack replacement process
Replacement steering rack - This is a labor-intensive process that requires special tools and a lift. If you do not have experience working with steering gears, it is better to entrust this work to professionals, as an error in the assembly could cost you your life. However, if you are confident in your abilities, you can try to do the work yourself.
The first step is to remove the wheels and protect the body. It is necessary to unscrew the steering ends from the suspension arms using a puller. Next, the battery is disconnected and the power steering hoses (if it is hydraulic) or the electric motor connectors are disconnected. Be prepared for some of the liquid to spill onto the floor.
- 🔧 Prepare the keys: ratchet, sockets 17, 19, 21, tip remover.
- 🛠️ Be sure to use spring ties if you have to remove the subframe.
- ⚙️ Buy new power steering fluid and replacement filters in advance.
☑️ Preparing to replace the slats
The most difficult stage is removing the rail itself. It is often bolted to a subframe that must be lowered for access. After removing the old part, clean the seating area from dirt and rust so that the new one Nissan Murano The rail sat tightly and without distortion. Installation is carried out in reverse order.
After installation, be sure to bleed the power steering system. To do this, start the engine and smoothly turn the steering wheel several times from lock to lock, without stopping in the extreme positions. This will help remove air from the system and avoid pump noise. Check the fluid level and, if necessary, add it to the Max mark.
What to do if the rack jams during dismantling?
Sometimes the bolts stick tightly. Use penetrating lubricant WD-40 or equivalent, heat the joint with a torch (be careful with the wiring!) and use impact wrenches. Do not try to remove the bolt too quickly, as you may break the threads in the subframe.
Why is a wheel alignment necessary after replacement?
Many car owners make the mistake of thinking that after installing a new rack, they can immediately go to the track. This is not true. Any intervention in the steering, even just unscrewing the tips, disrupts the wheel alignment angles. Without wheel alignment The tires will wear unevenly and the car may pull to one side.
On modern crossovers like Nissan Murano The suspension geometry is very sensitive. Even a slight misalignment of a few millimeters can cause the steering wheel to be crooked when moving in a straight line. Toe adjustment is performed on a stand where the operator sees the position of the wheels in real time.
The procedure takes about 30-40 minutes and is inexpensive compared to the price of new tires. Ignoring this step will cause you to quickly kill your tires and result in poor handling. Be sure to ask the technician for a printout of the measurement results before and after work.
Before starting the alignment procedure, make sure that the tire pressure is within the factory recommendations, otherwise the settings will be inaccurate.
Cost of repairs and prices for work
Total replacement cost steering rack consists of the price of the spare part itself, the cost of work and additional materials (fluid, clamps, oil). On average, replacement work in the service costs from 8,000 to 15,000 rubles, depending on the complexity of the design and the region.
If you decide to buy an original part, the repair budget may exceed 100,000 rubles. The use of high-quality analogues allows you to reduce costs to 40,000 - 50,000 rubles. It is important to consider that saving on spare parts often leads to repeated repairs after a short period of time.
It is also worth considering the cost of diagnostics, which is usually carried out before starting work. A good service will never replace a part without first confirming the fault. Sometimes the problem lies not in the rack itself, but in the power steering pump or electric power steering wiring, which requires a completely different approach to repair.
⚠️ Attention: Do not agree to a “cheap” replacement in garage services, where they cannot guarantee proper bleeding of the system and alignment installation; this may cost you control of the car.
How to extend the life of a new rack
After a successful replacement, it is important to follow the operating rules so that the new mechanism lasts a long time. The first rule is not to hold the steering wheel in extreme positions for more than 3-5 seconds. This places a peak load on the hydraulics or electric motor, causing overheating.
Check the integrity of the anthers regularly. If you notice a crack or tear, replace it immediately. The boot protects the internal mechanisms from water, dirt and salt. Getting abrasive particles inside is the surest way to quickly ruin a new one. Nissan Murano lath
- ❄️ In winter, after driving through puddles, wash the bottom of the car to wash off the reagents.
- 🛢️ Change the power steering fluid every 40-50 thousand kilometers.
- 🛣️ Avoid sharp impacts with wheels on curbs and deep holes.
Regular checking of boots and timely replacement of power steering fluid is 90% of success in the long life of the steering rack.
Following these simple recommendations will allow you to forget about the problem with your steering for many years. High-quality repairs and proper care are the key to safety and comfort on the road. Do not neglect diagnosis when the first symptoms appear, because the cost of inaction may be too high.
How often does the steering rack on a Nissan Murano need to be replaced?
Subject to high-quality operation and regular maintenance, the service life of the rack ranges from 100,000 to 150,000 kilometers. However, in our conditions, the real figure is often less - about 80,000 km.
Is it possible to drive with a leaking rack?
Strongly not recommended. A fluid leak can lead to jamming of the mechanism or failure of the power steering pump. In addition, it is dangerous for control safety.
Does the rack assembly need to be replaced or can it be repaired?
If the rack body is not deformed, repairs are possible using a repair kit. However, for electric amplifiers it is often more profitable and reliable to replace the assembly, since the electronics often suffer during repairs.
How long does it take to replace a rack in the service?
Typically the process takes from 3 to 5 hours, including diagnostics, dismantling, installation, bleeding the system and wheel alignment. The difficulty depends on the generation of the car and the type of amplifier.