Crossover owners Nissan Murano second generation (Z51 body), equipped with a Jatco JF011E variator, are often faced with the need to service the transmission. This unit is known for its reliability if properly maintained, but failure to replace consumables can lead to fatal consequences. The key element in the lubrication and cooling system is the variator filter, which is responsible for cleaning the working fluid from wear products.
Many car owners mistakenly believe that it is enough to simply add oil if the level drops. However, over time, metal shavings, friction decomposition products and dirt accumulate in the valve body and pan. Without proper filtration, these abrasive particles begin to circulate through the system, causing scoring on the cone and locking ring, which leads to costly repairs.
Understanding the design features of the filtration system will help you make the right decision when choosing consumables. On Murano Z51 A two-stage cleaning system is installed: coarse and fine. Neglecting to replace any of these elements, even when performing a complete oil change, is a serious mistake that can reduce the life of the variator by several times.
Design features of filtration in Jatco JF011E
Vehicle transmission system Nissan Murano The Z51 uses a complex oil circulation mechanism where the purity of the working fluid plays a critical role. Inside the transmission pan there is a coarse filter, which is often called a “mesh”, and a fine filter is installed outside on the valve body housing. Both elements work in tandem, ensuring an uninterrupted supply of oil to the pump group.
The coarse filter is a metal mesh that traps large particles of metal shavings and wear products of friction discs. Its task is not to let large abrasives pass into the thin system, but if the variator is heavily worn, it quickly becomes clogged. If you notice that the oil has darkened and has a burning smell, it means that the mesh has ceased to cope with its functions.
The fine filter is made in the form of a paper or synthetic element, reminiscent of an engine filter. It traps the smallest suspended matter that a metal mesh cannot trap. It is this element that is often forgotten to be changed during a partial oil change, which is a critical mistake. Replacing the fine filter is required with every complete oil change in the Jatco JF011E variator.
It is important to consider that the oil pressure in the variator system depends on the throughput of the filters. A clogged element creates resistance, causing the oil pump to work with increased load. This leads to a drop in pressure, belt slippage and jerking when changing gears. Regular filtration system maintenance is key to long transmission life.
Original versus analogues: what to choose for the Z51?
The aftermarket offers many options for CVT filters. Nissan Murano, from dealer originals to budget analogues. The original filter from Nissan (article 31726-AX00A or 31726-AX01A) is considered the standard of quality. It provides ideal throughput and tightness of the gasket, which eliminates air leaks and leaks.
- ✅ Original — guaranteed quality of material, precise geometry, durable gasket.
- ⚙️ Top analogues (Sakura, Purflux, Knecht) - good value for money, often used in service centers.
- ⚠️ Budget analogues — risk of low quality paper, rapid destruction at high temperatures and leakage.
When choosing an analogue, you should give preference to proven brands specializing in transmission filters. Cheap Chinese fakes can get wet from the transmission fluid after just a couple of thousand kilometers, turning into a mess that will clog the oil channels. This will lead to emergency operation of the variator and the need for complex repairs.
It is also worth paying attention to the completeness. Often the filter is sold together with a pan gasket and bolts. For Murano Z51 It is extremely important to use new pan bolts as old ones may have stripped threads or become loose after repeated use. Skimping on bolts may cost you valve body repair due to loss of pressure.
⚠️ Attention! Do not attempt to clean or blow through the metal mesh of the coarse filter with compressed air. This disrupts the cell structure and reduces filtration efficiency. It is best to replace the screen with a new one, especially if you are doing a complete oil change.
Signs of a clogged filter and the need for replacement
A clogged filter can be determined by indirect signs of transmission operation, which become noticeable when the car is moving. The Jatco JF011E variator is sensitive to oil pressure, and any deviations in the filtration system are immediately reflected in the behavior of the crossover. If you notice changes in dynamics, you should immediately check the oil level and condition.
- 🚗 Jerks and kicks when starting off or switching between D-R modes.
- 📉 Power Loss and the inability to gain speed at high speeds.
- 🔥 CVT overheating — the indicator on the dashboard lights up even during moderate driving.
- 🔊 Noise and hum from the transmission, which changes depending on engine speed.
In some cases, the car's computer may record an error in the pressure in the valve body or slipping of the belt drive. The diagnostic scanner will show errors related to the pressure in the pump circuit. This is a direct indication that the oil cannot circulate normally due to filter contamination or pump wear.
Don't wait until serious mechanical failures appear. Preventive filter and oil replacement is the cheapest way to preserve transmission life. If you are exploiting Nissan Murano in city conditions with frequent traffic jams, the replacement interval should be reduced to 40-50 thousand kilometers.
- Up to 30,000 km
- 30,000 - 50,000 km
- More than 60,000 km
- Never changed
Tools and preparation for filter replacement
Before starting work, you must prepare all the necessary tools and materials. The process of replacing the filter Murano Z51 requires access to the bottom of the car, so the presence of a lift or inspection hole is required. You will also need jacks and supports to securely support the SUV.
The list of necessary tools includes a set of sockets, a ratchet, a wrench and a container for draining old oil. The volume of waste liquid can be about 5-6 liters, so choose a container of the appropriate size. Don't forget about the funnel and hose for filling in new oil, as well as a new filter and pan gasket.
- 🛠️ Head set - 10, 12, 14, 17 and 19 mm wrenches for removing the protection and tray.
- 🧴 Carburetor Cleaner - for washing the tray and metal mesh (if it is changed).
- 🧤 Gloves and rags - to protect hands and clean up spilled oil.
- 🔦 Flashlight — to inspect the valve body and assess the condition of internal components.
It is also worth taking care of access to the engine, since sometimes you need to unscrew the subframe mounts to gain full access to the sump. On some modifications Murano It may be necessary to remove mudguards and engine protection elements. Check that all necessary gaskets and bolts are present before starting work.
☑️ Preparing to replace the filter
Step-by-step instructions for replacing the filter
The replacement process begins with draining the old transmission fluid. Start the engine and warm the variator to operating temperature so that the oil becomes more fluid. Then turn off the engine, place the car on a flat surface and unscrew the drain plug of the pan, placing a container to collect waste.
After the oil is completely drained, the pan must be removed. Unscrew the bolts around the perimeter of the pallet, starting from the corners. Be careful as there may be some oil left inside. Remove the pan and remove the old gasket. Clean the surface of the tray and magnets from metal shavings and dirt.
Next, proceed to replacing the filters. First, remove the coarse filter (mesh) located inside the pan. Then unscrew the bolts securing the fine filter located on the valve body body. Carefully remove the old filter, being careful not to damage the gasket and seat.
Install a new fine filter, having first lubricated the gasket with fresh oil. Screw it to the valve body with the torque recommended by the manufacturer. Install a new coarse mesh or a thoroughly washed old one (if it is in good condition). Reinstall the pan with a new gasket and tighten the bolts in a crisscross pattern.
The nuances of tightening the pallet bolts
The variator pan bolts are tightened to a certain torque. Usually it is 4-5 Nm. Over-tightening may cause pan deformation and oil leakage. Use a torque wrench for accuracy.
After assembly, it is necessary to fill in new transmission oil through the dipstick or filler hole. Fill in approximately 4-5 liters of fluid, start the engine and change gears in each mode, holding for 5-10 seconds. Then add oil to the level, checking it with the engine running and the variator warm.
It is important to check the tightness of all connections after the first ride. Inspect the installation site of the filter and pan for leaks. If everything is in order, check the oil level after a few days of operation.
When draining old oil, pay attention to its color and the presence of foreign matter. Black oil with a burning smell or the presence of silver shavings indicates serious wear on the internal components of the variator.
Common mistakes when servicing a variator
Many owners Nissan Murano make common mistakes when replacing a filter, which can ruin all maintenance efforts. One of the most common mistakes is using a poor-quality pallet gasket. Cheap gaskets quickly lose their elasticity and begin to leak oil under load.
Another mistake is not cleaning the magnets in the tray. Metal shavings accumulate on the magnets, which is an indicator of the condition of the variator. If you don't clean the magnets or replace them, some of these chips will end up back into the lubrication system. This is especially critical in the presence of large particles.
They also often forget about the need to change the oil after installing a new filter. Old oil remaining in the torque converter and radiator will mix with the new oil and reduce its properties. For a quality replacement, it is recommended to use the displacement method or hardware replacement, if the condition of the transmission allows it.
- ❌ Saving on gaskets - the use of old or cheap analogues leads to leaks.
- ❌ Lack of diagnostics — replacing the filter without checking the condition of the oil and magnets.
- ❌ Incorrect fill — if the oil level does not correspond to the norm, it leads to overheating or foaming.
⚠️ Attention! Never mix transmission fluids of different manufacturers and specifications. Even if they have the same color, the chemical composition of the additives may differ, which will lead to oil curdling and failure of the valve body. Use only Nissan NS-2 or NS-3 fluid recommended for your model year.
Regularly changing the filter and oil in the Jatco JF011E variator on the Nissan Murano Z51 is not a whim, but a necessary condition for preventing expensive transmission repairs.
Compatibility table and spare parts articles
To make it easier to select spare parts, we provide a table with the main article numbers of filters and consumables suitable for Nissan Murano Z51 with Jatco JF011E CVT. Using the correct numbers ensures system compatibility and performance.
| Name | Original article | Analogue (brand) | Analog article |
|---|---|---|---|
| Fine filter | 31726-AX00A | Sakura | A-1710 |
| Coarse filter (mesh) | 31728-AX00A | Purflux | LS1728 |
| Pan gasket | 31397-AX00A | Victor Reinz | 61-31397-00 |
| Transmission oil (NS-2) | HE00-10011 | Motul | Multi CVT |
Please note that article numbers may vary depending on the year of manufacture of the vehicle and the region of delivery. Before purchasing, be sure to check your vehicle's VIN with the manufacturer's catalogue. The use of unsuitable filters can lead to malfunction of the valve body and failure of the entire transmission.
When ordering spare parts through online stores, pay attention to the seller’s rating and reviews of product quality. Original spare parts are often more expensive, but their reliability is worth the investment. If in doubt, consult a transmission specialist.
Conclusion and recommendations for use
CVT service Nissan Murano The Z51 requires a responsible approach and attention to detail. Replacing the filter is only part of a comprehensive service, which includes checking the oil level, checking the condition of the cooling radiator and diagnosing electronic systems. Performing these procedures regularly will significantly extend the life of the transmission.
Do not allow the variator to overheat, especially in the hot season or when driving in traffic jams. Install an additional cooling radiator if you often drive the vehicle in difficult conditions. This will help reduce the temperature of the oil and slow down the process of its degradation.
Remember that prevention is always cheaper than repairs. The cost of replacing the filter and oil is not commensurate with the cost of overhauling the variator or replacing it with a contract unit. Careful handling of equipment and timely maintenance are the key to long and trouble-free operation of your crossover.
⚠️ Attention! If after changing the filter and oil you continue to experience jerking, noise or kicking, contact a specialized service immediately. Perhaps the problem lies in the wear of the mechanical parts of the variator, and simply replacing consumables will not help.
How often should I change the CVT filter on a Murano Z51?
The recommended filter replacement interval is every 40,000 - 50,000 kilometers. When operating in difficult conditions (traffic jams, towing, off-road), the interval should be reduced to 30,000 kilometers. The transmission oil must be changed along with the filter.
Is it possible to blow out the metal filter mesh with compressed air?
The metal mesh of the coarse filter can be washed with carburetor cleaner and blown with compressed air, but only if it has no damage to the cells. However, to guarantee quality, it is better to replace the mesh with a new one, since its cost is low and the risk of re-contamination of the system is high.
What symptoms indicate the need to replace the filter?
Key symptoms include rough shifting, loss of power, overheating of the CVT, noise from the transmission, and an illuminated Check Engine light or oil pressure error. If you notice these signs, immediately diagnose and replace the filter.
Do I need to change the pan gasket when replacing the filter?
Yes, the pan gasket must be replaced with every filter and oil change. An old gasket loses its elasticity and may not provide a tight seal, which will lead to oil leakage. Using a new gasket guarantees a reliable connection and no leaks.
Which oil is best to use for the filter and variator?
For Jatco JF011E variator installed on Nissan Murano Z51, it is recommended to use original Nissan NS-2 or NS-3 gear oil (depending on the year of manufacture). High-quality analogues with appropriate tolerances are also allowed, but mixing different types of oils is unacceptable.