For some reason, many owners of Nissan Murano crossovers perceive the transmission as something eternal and not requiring attention until a serious problem arises. In fact, it is gearbox is the unit that determines the dynamics, smoothness and overall reliability of the car over many years of operation. This is especially true for models with turbocharged engines, where torque is supplied with high intensity.
Owners Nissan Murano of the second and third generations, it is worth paying special attention to the condition of the torque converter and valve body, since these elements are most susceptible to wear during intense city driving. The correct choice of oil type and compliance with the replacement schedule can extend the life of the unit by tens of thousands of kilometers, while ignoring maintenance will lead to expensive overhauls or complete replacement.
Types of transmissions for Nissan Murano and their features
Model history Nissan Murano is inextricably linked with the development of continuously variable transmission technologies, which the manufacturer has actively introduced into its crossovers. The main type of gearbox installed on this model since 2003 is a variator (CVT), namely the Jatco JF011E (RE0F10A) series for the first generations and JF016E (RE0F11A) for later versions.
Despite the fact that engineers strived to create the smoothest and most economical power transfer possible, CVTs have their own specific weak points, which are critical to understand when buying a used one. Unlike classic hydromechanical automatic transmissions, there is no fixed gear ratio, which ensures endless acceleration, but requires an ideal belt drive.
A feature of early versions is a tendency to overheat during long driving on the highway in the heat, which requires the installation of an additional cooling radiator. More recent models Murano received improved control algorithms that simulate gear shifting, creating the effect of a more familiar transmission for the driver.
Symptoms of a Jatco CVT malfunction
The first signs of transmission problems are often disguised as electronic features, so drivers may not immediately notice a serious breakdown. If you feel jerking when starting or notice that the engine is spinning up but not accelerating, this is a sure sign that the belt or chain is slipping.
The most alarming symptom is the appearance of a metallic grinding noise or hum, which changes depending on the speed of rotation of the shafts. This sound often indicates wear on the cone bearings or the drive shaft bearing itself, which requires immediate diagnosis.
Also pay attention to the behavior of the tachometer needle: if it “floats” when driving at a constant speed, this indicates unstable operation of the torque converter or errors in the operation of the speed sensors. Do not ignore delays when switching modes P-R-N-Dwhich may indicate low pressure in the hydraulic system.
Maintenance schedule and oil change
Many manufacturers claim that the oil in the variator is filled “for its entire service life,” but this is a marketing ploy, which in the case of Nissan Murano can lead to fatal consequences. The actual service life of the fluid is no more than 60,000 kilometers, after which it loses its protective properties and ceases to cool friction units.
The replacement procedure must be carried out by partial or complete replacement using special equipment. The usual unscrewing of the drain plug changes only about 40% of the oil volume, leaving dirty fluid in the valve body and radiator, which negates the effect of maintenance.
To replace, you must use only the original fluid. Nissan NS-2 or NS-3 depending on the generation of the car. The use of analogues or mixtures of different types of oils is unacceptable, as this disrupts the rheological properties of the fluid and can lead to destruction of the clutches.
- ✅ Check the oil level through the dipstick with the engine running and the box warm.
- ✅ Replace the coarse filter located in the transmission pan.
- ✅ Rinse the cooling radiator if metal particles are found in the oil.
⚠️ Attention: If, when changing the oil, you find a large amount of metal shavings or foil (clutch particles) in the pan, simply replacing the fluid will not save the situation. The unit requires major repairs or replacement.
- Less than 100,000 km
- 100,000 - 200,000 km
- More than 200,000 km
- I don't know the exact mileage
Repair and replacement of valve body
The valve body, or the “brains” of the box, is one of the most vulnerable elements in the CVT control system. Over time, the channels inside the housing become clogged with wear products, and the solenoids begin to work incorrectly, which leads to failures in switching modes.
Often the problem is solved not by completely replacing the unit, but by professionally cleaning it and replacing the solenoids. However, if deep scratches or traces of corrosion appear on the surface of the valves, restoration becomes impossible and the installation of a new or contract valve body is required.
When repairing, it is important to pay attention to gaskets and O-rings, which over time become tanned and lose their tightness. Even a microscopic pressure leak can cause the transmission to go into emergency mode and stop shifting gears.
☑️ Checking the valve body
Comparison of unit states by year of manufacture
To understand what to expect from a particular model, it is worth considering the failure statistics and design features of different years of production. Early versions Murano (until 2010) are the most demanding to maintain, while models after restyling have proven to be more reliable.
The table below shows the main differences and typical problems for different generations of the crossover. This will give you an idea of what to look for when inspecting a used car.
| Generation | Gearbox type | Typical problems | Resource (km) |
|---|---|---|---|
| First (Z50) | CVT Jatco RE0F10A | Overheating, belt wear, bearing noise | 150 000 – 180 000 |
| Second (Z51) | CVT Jatco RE0F10E | Valve block clogged, sensor errors | 180 000 – 220 000 |
| Third (Z52) | CVT Jatco JF016E | Bearing wear, problems with the control unit | 200 000 – 250 000 |
| Fourth (Z53) | CVT Jatco JF016E (updated) | Rare cases, mostly electronics | 250 000+ |
What is CVT adaptation?
Adaptation is the process of teaching the control unit (TCM) the individual wear characteristics of the clutches and torque converter. Conducted through a diagnostic scanner after an oil change or repair. Without adaptation, the box may operate jerkily even in good condition.-->
Cost of repair and replacement of the unit
Financial issue when the variator breaks down Nissan Murano is always acute, since the cost of services and spare parts can be comparable to the cost of the car itself on the secondary market. A complete replacement of a unit with a contract (used) unit from Japan or Europe will cost much less than a major overhaul.
Major repairs involving the replacement of belts, cones and bearings require a highly qualified technician and the availability of specialized equipment to fine-tune the gaps. In this case, the price may be even higher than purchasing a refurbished unit with a warranty.
You should not try to save money by ordering repairs from unverified specialists, since incorrect assembly can lead to repeated failure after just a few thousand kilometers. It’s better to overpay once for high-quality repairs or a reliable contract unit than to constantly invest in “treating” the box.
- 🔧 Diagnostic cost
from 2,000 to 5,000 rubles.
⚠️ Attention: When purchasing a contract variator, be sure to request a test at the stand and a warranty from the seller. Many units from abroad already have wear that is not visible during external inspection.
Contract units: pros and cons
Many car owners choose the option of installing a contract CVT, which was removed from a similar car in Japan. The main advantage here is the price and the opportunity to get a unit that is technically sound and has been tested before sale.
However, there are also significant risks: it is impossible to accurately know the real mileage and operating history of the donor. Often the seller hides the fact that the box has already been repaired or has hidden defects that will only appear after installation.
Before installation, be sure to check the condition of the torque converter and valve body on the new unit. Sometimes it is more profitable to purchase an original torque converter from your car, if the condition of the old one is acceptable, in order to avoid unnecessary problems.
Emergency mode and transmission errors
If critical errors occur, the electronic control unit switches the transmission to emergency mode, limiting the speed and number of gears engaged. The “Check Engine” indicator or a specific CVT icon lights up on the dashboard.
In this mode, the car loses dynamics and becomes unable to overtake, which can be dangerous when driving on busy roads. Do not attempt to ignore this mode and continue to operate the vehicle as this may cause further damage to mechanical parts.
To reset errors and exit emergency mode, it is necessary to conduct computer diagnostics, find the cause of the failure and eliminate it. Simply disconnecting the battery terminal usually does not help, since errors are stored in the unit's non-volatile memory.
⚠️ Attention: If, after resetting the errors, the emergency mode returns after a short time, then the malfunction is of a mechanical or electrical nature and requires immediate repair.
When purchasing a used Nissan Murano, be sure to ask the owner to show the service history and receipts for changing the CVT oil. Missing entries is a red flag.
Prevention and operating tips
To extend the life of the CVT, you must adhere to simple driving and operating rules. Avoid sudden starts from a standstill, especially on a cold engine, when the oil has not yet reached operating temperature and has not filled all the channels of the system.
When driving in traffic jams, try not to keep your foot constantly on the brake, but use the N (neutral) during long stops. This will reduce the load on the torque converter and prevent it from overheating.
In winter, be sure to warm up the transmission before driving. Unlike the engine, the variator requires more time to reach operating temperature conditions, especially in severe frosts.
Don't use sport mode or manual gear shifting all the time unless you have a pressing need for performance. This places additional stress on the belt and cones, accelerating wear.
- ❄️ Warm up the box for at least 3-5 minutes in winter.
- 🛑 Do not skid on the variator, this leads to instant wear of the belt drive.
- 🔥 Monitor the oil temperature by installing an additional sensor during active driving.
FAQ: Frequently asked questions
Is it possible to tow a Nissan Murano with a faulty transmission?
Towing a car with a non-working variator is allowed only on a tow truck or with the drive wheels suspended. Towing on a cable can lead to complete destruction of internal components due to lack of lubrication, since the oil pump is driven by the engine.
What is the service life of the Jatco CVT on the Murano?
Subject to the oil change regulations and gentle operation, the service life ranges from 200,000 to 250,000 kilometers. Without maintenance, the service life can be reduced to 100,000 kilometers.
Is it possible to replace a CVT with a classic automatic?
This is theoretically possible, but requires serious modifications to the electronics, suspension and engine mounting. The cost of such tuning will be many times higher than the cost of the car itself, so in practice this is not used.
Why does the transmission jerk when shifting from 1st to 2nd gear?
This may be caused by worn clutches, contamination of the valve body, or problems with the solenoids. It is also often caused by low oil levels or degradation.
Is it necessary to warm up the box in summer?
Yes, even in summer it is recommended to let the engine run for a couple of minutes so that the oil circulates through the system and fills the torque converter. This will ensure smooth shifting and reduce wear.