Automatic transmission Nissan Murano Z52, equipped with a Jatco JF016E (CVT7) variator, requires special attention to the condition of the working fluid. Unlike classic torque converter automatic transmissions, this unit is extremely sensitive to the quality and level of oil, since the clutches and gears operate under constant slipping conditions. Ignoring maintenance regulations can lead to overheating and costly repairs.
Many owners Nissan Murano They believe that changing the oil is a simple procedure available to any car owner. However, the specific design variator requires precision when draining, filling and most importantly when checking fluid levels. Errors at the diagnostic stage can cost you the replacement of the entire unit, so it is important to approach the process with technical literacy.
In this article we will look at how to properly carry out transmission maintenance yourself. You will learn which oil to choose, how to ensure the correct temperature of the working environment and what tools you will need to perform the work efficiently. Compliance with technology is the key to the longevity of your car.
Selecting the Right Fluid and Tools
The first and most critical step is the selection of transmission fluid. For Nissan CVTs Murano Z52 manufacturer recommends using only original oil NS-3. The use of outdated specifications such as NS-2 or Jatco CVT Fluid J1 is strictly prohibited as this will alter the viscosity and friction resulting in rapid wear.
It is important to consider that with a partial replacement (draining through the drain plug), only about 40-50% of the liquid volume is renewed. A complete displacement replacement will require a significantly larger volume, but 4-5 liters is sufficient for routine maintenance. It is also worth paying attention to coarse filter, which is often located inside the pan.
List of required tools and materials:
- π οΈ Set of sockets and ratchet with extension
- 𧴠Original Nissan CVT Fluid NS-3 (volume 4-6 liters)
- π§ Drain plug wrench (usually 14 mm or 17 mm)
- π Long dipstick (if the standard one is removed) or diagnostic scanner
Don't forget to prepare a container for draining used oil, preferably with a measuring scale to control the volume. This will help you understand how much fluid has gone and how much needs to be added back.
β οΈ Attention: Never mix oils of different manufacturers or specifications. Even a small amount of unsuitable fluid can interfere with the operation of the valve body.
Preparing the car and climbing onto the overpass
Before starting work, the vehicle must be warmed up to operating temperature. Cold oil has a high viscosity and will not be able to drain completely, which will distort the final level readings. Start the engine and let it idle for about 10-15 minutes until the oil temperature reaches the 50-60 degree Celsius range.
Lift up Nissan Murano on a lift or place it on a secure platform. Make sure the car is level. Tilt of the body even by a few degrees will cause the oil level to be determined incorrectly using the inspection hole. Use special wheel stands for safety.
It is necessary to remove the engine crankcase protection. On Murano Z52 it is often secured with plastic clips and a few bolts. Be careful not to damage the fasteners when removing. If the protection is heavily soiled, it is better to wash it first so that dirt does not get into the engine or transmission when unscrewing.
- π Inspect the pallet for signs of impacts or leaks
- π Stop the engine and make sure there is no pressure in the system
- 𧀠Wear protective gloves and glasses
After preparation, you can begin to drain the old fluid. This process requires care as hot oil can cause burns.
- Up to 50,000 km
- 50,000 - 100,000 km
- More than 100,000 km
- I don't know for sure
Procedure for draining waste fluid
Locate the drain plug on the variator pan. It is usually located at the bottom and has a hexagonal shape. Place a container under the plug and carefully unscrew it. Be prepared for the oil to flow out in a strong stream. Allow the liquid to drain completely, this may take 10 to 20 minutes.
As you drain, pay attention to the color and presence of metal shavings in the oil. If you see large pieces of metal or βmetal dust,β this is a warning sign that the unit is wearing internally. In this case, a simple oil change may not solve the problem and may even worsen it if the valve body channels become clogged.
After the drain is complete, inspect the magnet on the drain plug. It should be covered with fine metal dust - this is normal. However, the presence of large pieces or chips requires detailed diagnostics of the variator. Clean the magnet of any adhering particles before replacing the plug.
Screw on the drain plug with a new O-ring. Do not overtighten it so as not to strip the threads in the pan. The tightening torque is usually around 30-40 Nm, but it is better to be guided by the specification of your car.
β οΈ Attention: Make sure you use a new O-ring (gasket) for the drain plug. Reusing an old gasket may cause leaks.
βοΈ Preparing to drain the oil
Features of replacing the filter and pan
On a variator Jatco JF016E The coarse filter is often built into the pan or is a separate element. In some cases, it is recommended to replace the pan assembly, as this simplifies the process and ensures cleanliness. However, if you want to save money, you can replace only the filter if it is accessible for dismantling.
When removing the pan, be prepared for the remaining oil to pour out from inside. Unscrew the bolts gradually, starting from the edges, so that the pan comes off evenly. Carefully remove it, being careful not to damage the gasket if you plan to reuse it (although it is better to buy a new one).
Clean the internal cavity of the pan from sludge and deposits. Use a special carburetor cleaner or solvent, but avoid getting aggressive substances on the rubber elements. After cleaning, install a new filter and gasket, tighten the bolts to the recommended torque.
- π§Ή Thoroughly clean the tray of metal shavings
- π© Check the pan bolts for damaged threads
- π‘οΈ Install a new pan sealing ring
If you are not sure about the condition of the filter, it is better to replace it. A clogged filter will not be able to pass the required amount of oil, which will lead to a drop in pressure and overheating.
What to do if the filter cannot be changed separately?
If the filter is integrated into the pan, it is recommended to replace the entire pan assembly. This ensures that the system is clean and there are no leakage problems.
Filling with new transmission fluid
After installing the pan and filter, you can begin to fill in new fluid. Oil must be filled through the hole for the dipstick or through a special filler hole on the valve body (depending on the modification). Use a funnel with a long hose to reach the pouring area.
Start pouring by adding approximately 3-4 liters of liquid. This is the approximate volume required to fill the system. Do not try to fill the entire volume at once, as overfilling can be no less dangerous than underfilling. Excess liquid will foam, causing loss of pressure and overheating.
After the initial fill, start the engine and let it idle. Switch the automatic transmission selector to all positions (P, R, N, D, L), holding each position for a few seconds. This will help distribute the oil through the valve body channels and fill the torque converter.
It is important to monitor the level while the engine is running. If oil begins to flow out through the control hole, it means the level has reached normal. If not, add a little more.
Before adding oil, check the condition of the engine air filter. A clean filter ensures proper operation of the crankcase ventilation system, which indirectly affects the pressure in the transmission.
Level control and temperature check
The most important step is checking the oil level at operating temperature. For CVTs Nissan this is critical. The level is checked through the inspection hole on the pallet. At the correct temperature (usually 50-60Β°C) the oil should flow slightly out of the hole, but not in a stream.
For accurate temperature control, use a diagnostic scanner. Connect it to the OBDII connector and read the "AT Oil Temp" parameter. If the temperature is too low, the level will be below normal. If it is too high, the level will appear higher, which will lead to an error when filling.
If the level is not correct, add or drain excess oil until you achieve the ideal result. Stop the engine and tighten the inspection plug with a new seal. Make sure the plug is tightened to the correct torque.
Use the table below as a guide to volumes:
| Type of procedure | Oil volume (liters) | Check temperature | Note |
|---|---|---|---|
| Partial replacement | 4.0 - 4.5 | 50-60Β°C | Update ~40% volume |
| Complete replacement (replacement) | 10.0 - 12.0 | 50-60Β°C | Equipment required |
| Replacement with parsing | 8.0 - 9.0 | 50-60Β°C | Includes pan flushing |
| Dry filling volume | 10.5 | Not applicable | Maximum system volume |
β οΈ Attention: An error in determining the temperature may result in an incorrect oil level. Always use a diagnostic scanner for accurate control.
Correct oil temperature when checking the level is key to CVT longevity. Don't neglect using the scanner.
Test drive and final inspection
After all work is completed, take it for a test drive. Accelerate smoothly, avoiding sudden starts and slipping. Pay attention to the behavior of the transmission: there should be no jerking, kicking or strange sounds. If everything is ok, let the machine run normally for about 10-15 minutes.
A day after the trip, check the oil level again and for any leaks. Make sure the drain and inspection plugs are tightened securely. If the level has dropped, it means there is a leak somewhere or the oil has not been added to the correct level.
During operation, regularly monitor the condition of the oil. If it has darkened or acquired a burning smell, this is a reason for immediate diagnosis. CVT Nissan Murano Z52 forgives mistakes, but only within reason.
- π Take a test ride with smooth accelerations
- π Check for leaks after the trip
- π Monitor your oil temperature on future trips
Following these simple rules will allow you to extend the life of your CVT and avoid costly repairs. Regular maintenance is an investment in the reliability of your vehicle.
Frequently asked questions and answers
Can oil from other manufacturers be used instead of NS-3?
No, the use of oils that do not meet the NS-3 specification is strictly prohibited. This can lead to rapid wear of the clutches and failure of the variator.
How often do you need to change the oil in the Nissan Murano Z52 CVT?
The recommended replacement interval is every 60,000 km. In severe operating conditions (city traffic, towing), the interval should be reduced to 40,000 km.
What should I do if the oil leaks too much when checking the level?
This means overflow. Drain excess oil through the drain plug until it flows out in a thin stream and then drops at operating temperature.
Do I need to warm up the engine before checking the oil level?
Yes, the level check must be carried out at operating oil temperature (50-60Β°C). Cold oil has a different viscosity, which will distort the test results.
Is it possible to change the oil using the DIY displacement method?
Theoretically it is possible, but this requires special equipment and a large amount of oil. At home, a partial replacement is more often carried out, which renews about 40-50% of the volume.
Changing the oil in the variator Nissan Murano Z52 is a task that requires attention to detail and adherence to technology. By following our instructions, you can keep your transmission in excellent condition yourself. Remember that prevention is always cheaper than repairs.
It is critically important to monitor the oil temperature when checking the level, since the accuracy of the measurement and the further operation of the variator depend on it.