Automatic transmission on Nissan Almera Classic is one of the most reliable units, but even it requires regular maintenance to preserve the resource. Many owners mistakenly believe that the fluid filled in at the factory is designed to last its entire service life, but breakdown statistics indicate the opposite. The absence of a scheduled replacement leads to wear of the clutches, overheating of the valve body and subsequent expensive repairs.
Oil change procedure Automatic transmission JF414Einstalled on this model has its own characteristics that distinguish it from similar work on other cars. It is critically important to observe temperature conditions and accuracy when checking the level, since an error of even 0.5 liters can lead to malfunctions of the gearbox. In this article we will look at all the intricacies of the procedure, from the selection of consumables to the final level settings.
Selecting transmission fluid and required materials
The heart of your transmission is the fluid, which performs the functions of lubrication, cooling and transmitting hydraulic pressure. For Nissan Almera Classic the manufacturer recommends using the original fluid NS-2. Using analogues or more modern liquids NS-3 without prior consultation with the dealer or in-depth compatibility analysis may lead to changes in the friction characteristics of the friction packs.
When preparing for work, you will need not only the transmission fluid itself, but also a number of consumables that people often forget to buy in advance. Be sure to replace the automatic transmission filter, since the old element is already saturated with wear products and will not be able to effectively clean fresh oil. It is also worth stocking up on a new pan gasket if it is being removed, and a copper washer for the drain plug to eliminate the risk of leakage.
- π§ Original liquid ATF NS-2 (volume for a complete replacement - 6-7 liters)
- π§ Replacement automatic transmission filter (original or high-quality analogue type Sakura)
- π§ Transmission pan gasket
- π§ Copper washer for drain hole
Some technicians suggest using flushing fluids before replacing, but for hydromechanical gearboxes Jatco it can be risky. Aggressive flushes can tear off large pieces of carbon deposits, which then clog the thin channels of the valve body. It is safer to carry out the partial replacement procedure several times at intervals of 500 km than to risk the integrity of the system.
β οΈ Attention: Never mix liquids of different types or colors. Mixing NS-2 and NS-3 can lead to an irreversible change in viscosity and loss of performance properties in the shortest possible time.
Preparing the car and tools for work
Before starting any physical impact on vehicle components, it is necessary to ensure safe working conditions. Lift up Nissan Almera Classic on a lift or use a reliable car jack paired with safety stands. Working under the machine without proper support is unacceptable, as the slightest movement can lead to injury.
You will need a set of tools, including wrenches 14 and 10, a wrench with an extension, a container for draining used fluid with a volume of at least 5 liters and a syringe for filling in new oil. Do not forget to prepare rags and gloves, since working with oil always involves the risk of contaminating your hands and clothing. If you plan to remove the pan, a sealant and degreaser will come in handy.
The engine must be warmed up to operating temperature before draining, since hot oil has a lower viscosity and flows out better, carrying with it a suspension of wear products. However, if you plan to remove the pan, make sure that the oil temperature does not exceed 50-60 degrees to avoid burns from contact with metal surfaces.
- π Set of open-end and socket wrenches (main emphasis on size 14)
- π Container for draining waste with a narrow neck or funnel
- π Gear oil syringe with flexible tube
- π Carburetor cleaner or special parts cleaner
- Partial (change 3-4 liters)
- Full hardware
- Complete by displacement method
- Never changed
Procedure for draining old oil and replacing filter
The first step is to drain the used fluid through the drain hole located on the transmission pan. Unscrew the plug, replacing the prepared container, and allow the oil to drain completely. Pay attention to the condition of the drain plug: the magnets on it should be covered with metal shavings, which is an indicator of wear on the internal components.
After draining the bulk of the oil, it is necessary to remove the oil pan. When unscrewing the bolts, be careful not to damage the aluminum of the pan. When the pan is removed, you will see the automatic transmission filter, which is attached to the box body with several bolts. Carefully remove the filter without damaging its mesh or O-ring.
Thoroughly clean the pan of any remaining old oil, metal shavings and sludge. Wash the magnets on the tray and, if present, the magnets on the filter housing. Use carburetor cleaner to remove carbon deposits from the surface of the pan, but avoid getting the chemical on the rubber seals.
βοΈ Preparation for replacement
Installing a new filter should only be done after you are sure that the seat is clean. Never use an old filter, even if it looks intact, as its pores are already clogged. Make sure the new O-ring is installed correctly and is not twisted.
What to do if the filter is stuck?
Use a special puller or carefully pry it off with a flat-head screwdriver, using fabric to avoid damaging the box body. Do not use excessive force as this may strip the threads in the aluminum housing.
Features of pallet installation and sealing
If you removed the pan, then before installing it you need to apply a thin layer of sealant. Use a special high-temperature transmission sealant that is resistant to transmission fluid. Apply it in a continuous line along the contour of the pan, avoiding getting it inside the housing, as excess may come off and clog the oil passage.
Tighten the pan bolts crosswise to ensure even surface contact. The tightening torque should be moderate, since the bolts are screwed into the aluminum body, and excessive force may strip the threads. After installation, allow the sealant to dry for the time specified by the manufacturer, usually 30-60 minutes.
β οΈ Attention: If the pallet shows signs of severe deformation, it must be replaced. Trying to level the pan and reseal it often results in persistent leaks that are difficult to fix.
Before you start adding new oil, make sure the drain plug is screwed in and sealed with a new copper washer. This is a critical point, since pouring oil through the filler hole with the drain plug open will result in instant loss of all the filled fluid and the inability to check the level.
High-quality sealing of the pan is the key to the absence of leaks in the future. Do not skimp on sealants and do not use universal compounds not intended for automatic transmissions.
Adding new fluid and checking the level
Filling new oil into Nissan Almera Classic should be done through the filler hole located on the top of the gearbox, usually under the dipstick. Use a syringe with a flexible tube to deliver the liquid precisely into the neck. Fill in approximately 4-4.5 liters of liquid, which is the initial volume to partially fill the system.
After filling, you need to start the engine and warm up the gearbox. Switch the automatic transmission selector to all positions (P, R, N, D), holding each mode for 3-5 seconds. This is necessary so that new fluid fills the torque converter, radiator and all valve body channels. The engine should be running at idle speed.
The oil temperature should be between 35 and 45 degrees for an initial level check. This can be determined by touch: the box should be warm, but not scalding. Open the filler hole and check if the oil flows out. If the oil does not flow, add a little more and repeat the procedure.
| Oil temperature (Β°C) | Flow condition from control hole | Actions |
|---|---|---|
| 35-45 | Thin stream or drops | Normal level |
| 35-45 | No flow | Lack of oil, need to top up |
| 35-45 | Strong jet | Excess oil needs to be drained |
| 50-60 | A thin trickle | Normal level (final check) |
The final level check should be carried out at a temperature of 50-60 degrees. In this range, the oil viscosity will stabilize and the readings will be most accurate. If the level is correct, install the filler plug with a new washer and tighten it completely.
To accurately measure temperature, use a non-contact pyrometer by pointing the beam at the transmission housing near the pan. This will provide more objective data than tactile sensation.
Typical errors and operating tips
Many owners make the mistake of trying to check the oil level with the engine off. In boxes Jatco this is unacceptable, since the pump does not create pressure, and the oil flows into the sump, creating a false impression of overflow. Always check the level only with the engine running and the transmission warm.
Another common mistake is ignoring the condition of the automatic transmission radiator air filter. If the radiator is clogged with dirt, the oil will overheat even with a fresh change, which will lead to rapid oxidation and loss of properties. Regularly clean the radiator from lint and dirt, especially in spring.
- π« Do not check the level on a cold engine - the data will be incorrect
- π« Do not use cheap analogues of oil without a certificate of conformity NS-2
- π« Do not overtighten the plugs - the threads in the aluminum case are easily broken
After changing the oil, monitor the behavior of the box during the first 100-200 km of operation. There may be minor changes in shift performance as the clutches adapt to the new fluid. If jerks, kicks or extraneous noises appear, you should immediately contact a specialist for diagnosis.
Regular oil changes are an investment in the long life of your automatic transmission. The cost of the procedure is several times lower than a major overhaul of the gearbox, which may be required if maintenance is ignored.
Frequently asked questions (FAQ)
How much oil is needed for a complete change in the automatic transmission of a Nissan Almera Classic?
For a partial replacement, about 4 liters are required; for a complete replacement using the displacement method or multiple partial replacements, it is necessary to purchase from 6 to 7 liters of the original fluid NS-2.
Is it possible to mix NS-2 and NS-3 oil?
It is strictly not recommended to mix these types of liquids. They have different chemical compositions and additive packages, which can lead to oil curdling and failure of the valve body.
How often do you need to change the automatic transmission oil on an Almera Classic?
Official regulations may not indicate replacement, but experts recommend replacement every 60,000 km or every 3-4 years of operation, depending on driving conditions.
What should I do if after changing the oil leaks from under the pan?
This indicates poor sealing or damage to the pallet. It is necessary to drain the oil, remove the pan, clean the surface and reapply the sealant, following the technology.
Do I need to warm up the box before checking the level?
Yes, checking the level is only possible at operating oil temperature (50-60Β°C). When cold, the readings will be incorrect, and you will either overfill or underfill the oil.