An automatic transmission is a complex hydromechanical unit that requires regular maintenance to preserve its service life. Owners Nissan Almera often ignore the need to change the working fluid, believing that the composition filled in at the factory lasts “forever”. This misconception leads to accelerated wear of the clutches, overheating of the torque converter and costly repairs of the unit.
Oil change procedure Automatic transmission on the model Nissan Almera has its own technical nuances, which depend on the type of transmission (Jatco RE4F04B or more modern CVTs, if we are talking about mixed modifications, but the classic Almera is a classic automatic). Correct work ensures smooth shifting, no jerking and long life of the box. Below we will analyze all aspects from the selection of consumables to the final level check.
Maintenance intervals and signs of wear
Factory recommendations from Japanese engineers often indicate that the automatic transmission fluid does not require replacement during the entire service life of the vehicle. However, real operating conditions in Russia are radically different from ideal test sites. Dust, temperature changes, traffic jams and aggressive driving style force us to shorten the scheduled intervals.
Optimal replacement period ATF (Automatic Transmission Fluid) is every 60,000 kilometers or every 4 years, if the mileage is less. When operating in difficult conditions (taxi, city traffic jams, towing a trailer), this procedure should be carried out every 40,000 km. Ignoring deadlines leads to loss of lubricating properties and accumulation of metal shavings.
There are clear signs that the liquid has lost its properties and requires urgent replacement. If you notice a delay when turning on the “D” or “R” mode, vibration when shifting gears, or extraneous noise from the transmission, this is a reason to immediately check the condition of the oil.
- 🔴 Dark color of the liquid (from light red to dark brown or black)
- 🔴 The appearance of a metallic suspension or burning smell on the dipstick
- 🔴 Jerks and jolts when changing gears on the go
- 🔴 Increased mileage since last replacement
⚠️ Attention: Operating a vehicle with worn-out fluid Nissan Almera can lead to failure of the solenoids and valve body unit, the repair of which is much more expensive than a timely oil change.
Some owners prefer a partial replacement, but this does not solve the problem globally. A partial change updates only about 30-40% of the volume, while the rest of the fluid remains in the torque converter and cooling radiator. For maximum effect, the full procedure or use of a pressure replacement machine is recommended.
Choosing the Right Transmission Fluid
It is critical to use the exact specification recommended by the manufacturer. For classic automatic transmission Nissan Almera (Jatco model 4F27E or RE4F04B) liquid is standard Nissan Matic D or Nissan Matic J, depending on the year of manufacture and type of automatic transmission. The use of universal analogues may lead to incorrect operation of the valve body.
There are many substitutes on the market that meet the specifications, but original products always remain the priority. If you choose an analogue, make sure the canister clearly states compatibility with NS-2 or Matic D. Incorrect selection of viscosity can cause friction discs to slip.
The volume of oil required for a complete change varies depending on the type of procedure. For a partial replacement, about 4-5 liters will be required, while for a full change with flushing you need to purchase from 8 to 10 liters of liquid. Always have a reserve of 1 liter to adjust the level after warming up.
| Automatic transmission type | Recommended Specification | Volume for complete replacement | Volume at partial |
|---|---|---|---|
| Jatco RE4F04B (4 st.) | Nissan Matic D | 8.5 - 9.0 liters | 4.0 - 4.5 liters |
| Jatco JF414E (CVT) | Nissan CVT Fluid NS-2 | 7.5 - 8.0 liters | 3.5 - 4.0 liters |
| Jatco 4F27E (5 st.) | Nissan Matic D | 7.0 - 7.5 liters | 3.5 - 4.0 liters |
| Universal analogues | ATF Dexron VI or Nissan specific | According to analogue instructions | According to analogue instructions |
⚠️ Attention: Mixing liquids of different specifications (for example, Matic D and Matic J) is strictly prohibited, as this may cause a chemical reaction and destruction of the rubber seals inside the box.
- Complete replacement with devices
- Partial replacement (drained and refilled)
- Purchasing a service at a service station
- I'm not planning on replacing it yet
Necessary tools and preparation
Before starting work, it is necessary to prepare the workplace and tools. Nissan Almera has a fairly simple design of the engine compartment, but access to the drain plug may be limited by the crankcase protection. You will need a pit or lift as the operation requires lifting the car.
The list of tools should be complete to avoid delays and unexpected situations during the process. It is imperative to have a torque wrench, since overtightening the drain plug can strip the threads, and undertightening will lead to oil leakage. Don't forget about the waste container and funnel.
- 🔧 Set of keys and sockets (including 14mm for drain plug and 10mm for protection)
- 🔧 Torque wrench for precise tightening
- 🔧 Container for draining waste fluid (minimum 5 liters)
- 🔧 Funnel and extension hose for refilling
- 🔧 New sealing ring for the drain plug (original)
- 🔧 Gloves and rags for cleaning
☑️ Preparing for an oil change
Allow the engine and gearbox to cool slightly before starting work. Hot oil is harmful to your skin and can also warp plastic parts when drained. The optimal temperature for the procedure is about 30-40 degrees Celsius. This will allow the oil to flow freely without burning your hands.
Before starting work, be sure to tighten the filler plug (if it is accessible from above) or check the presence of the dipstick so that you do not accidentally lose it during the replacement process.
Step-by-step instructions for partial replacement
Partial replacement is the most affordable way to update the fluid yourself. The process begins with lifting the car onto a lift or placing it in a viewing hole. Make sure the machine is on a level surface and is secured with the handbrake.
Remove the plastic crankcase protection if it interferes with access to the transmission pan. Locate the drain plug at the bottom of the automatic transmission pan. Place a container under the plug and carefully unscrew it with a 14 mm wrench. Be prepared for the oil to pour out immediately and with pressure.
After completely draining the waste liquid, clean the magnets on the drain plug from metal shavings. This is an important step, since accumulated chips can clog the valve body the next time you drive. Replace the O-ring with a new one and tighten the plug to the specified torque (usually about 40 Nm).
What to do if the plug does not unscrew?
If the drain plug is stuck, do not use excessive force to avoid stripping the pan threads. Use a penetrating lubricant (WD-40), let it sit for 15-20 minutes, and then try unscrewing it with an impact wrench or using a hair dryer to heat the plug.
Then proceed to filling in new fluid. Open the hood, find the automatic transmission dipstick (if provided) or the filler hole. Pour 4 liters of new fluid through the funnel. Start the engine and let it idle, alternately switching the selector to all positions with a delay of 5 seconds.
Stop the engine, check the level using the dipstick or through the inspection hole. If necessary, add fluid to the mark Hot.
Partial replacement allows you to update up to 40% of the fluid volume, which already significantly improves the properties of the lubricant and extends the life of the torque converter without the use of complex equipment.
Features of complete replacement and flushing
A complete replacement of transmission fluid requires either the use of a special apparatus or a displacement method. When using the device, the liquid is supplied under pressure, displacing old oil from the torque converter and radiator. This is the most effective method, ensuring renewal up to 95-98% of the volume.
The manual displacement method (drain-fill-heat) is more labor-intensive. It consists of repeating the cycle many times: draining some of the oil, adding new oil, warming up, draining again. This method is economical, but requires more time and attention to the oil level so as not to burn the box.
It is important to consider that when performing a full replacement on older, high-mileage vehicles, there is a risk that the new detergent will wash away the deposits that have been sealing the gaps in worn clutches for years. This may cause slippage. If the mileage is over 200,000 km and the oil has never been changed, a full change may be risky.
⚠️ Attention: If the car has a mileage of more than 250,000 km and has never been serviced, a complete replacement under pressure may lead to transmission failure. In such cases, it is safer to carry out a partial change or not change the oil at all.
When completely replacing, it is necessary to replace the automatic transmission filter if it is removable. On some modifications Nissan Almera The filter is built into the pan, which requires replacing it along with the pan gasket. A clean filter ensures proper oil circulation and pressure in the system.
Level check and final settings
Correctly checking the level is the key to long-lasting transmission operation. The procedure is carried out with the engine running, since the pump must create pressure in the system. The gear selector must be in position P (Parking) or N (Neutral), depending on the manufacturer's recommendations for a specific model.
The fluid temperature must be within the operating range, usually between 50 and 80 degrees Celsius. If the temperature is too low, the level will be shown too high, and if it is overheated, the level will be too low. Use a scan tool to read the actual ATF temperature if possible.
If the level is below normal, add fluid to the mark Hot on the dipstick or until leakage appears from the inspection hole. If the level is higher than normal, the excess must be drained through the plug, as foaming of the oil will lead to loss of pressure and overheating.
- 🟢 Check the level at an oil temperature of 50-80°C
- 🟢 Make sure the engine is idling
- 🟢 The selector must be in position P or N
- 🟢 Wipe the probe with a clean rag before measuring again
After changing the oil, drive the car for 10-15 km, then check the level again. Sometimes the level may change during the first start due to the filling of the oil passages and torque converter.
Typical mistakes and their consequences
Despite the apparent simplicity of the procedure, many owners make mistakes that lead to serious damage. The most common mistake is using the wrong liquid. In an attempt to save money, drivers pour cheap analogues that do not meet the specifications Nissan Matic, which leads to rapid wear.
Another common problem is neglecting to replace O-rings. When reinstalled, the old ring does not provide a tight seal, which leads to oil leaks. Monitor the condition of the pan gasket and drain plug.
It is also unacceptable to overfill oil above normal. Excessive pressure inside the box causes the liquid to foam, which reduces its lubricity and leads to overheating. Foamed oil cannot transmit torque effectively.
If you are not confident in your abilities or do not have the necessary equipment for a complete replacement, entrust the work to professionals. Doing it wrong could cost you to replace your entire transmission. Remember that prevention is always cheaper than repairs.
FAQ: Frequently asked questions
Is it possible to mix oils from different manufacturers?
It is strictly not recommended to mix oils of different brands and specifications. Even if they have similar colors, the chemical composition of the additives may differ, which will lead to sedimentation and destruction of rubber seals. Use only one specification for the entire replacement.
How often do you need to change the automatic transmission filter?
It is recommended to change the automatic transmission filter at every complete oil change or every 60,000 - 80,000 km. If the filter is built into the pan, then replacement is carried out together with the pan gasket. Failure to replace the filter may lead to clogging of the valve body.
What to do if jerking occurs after changing the oil?
Small jerks in the first 100-200 km after replacement may be the norm, as the new fluid changes viscosity and pressure. If the jerking increases or does not go away, the wrong type of oil may have been used or the level may be incorrect. Check fluid level and specification.
Do I need to warm up the box before replacing it?
Yes, the box needs to be warmed up to operating temperature (about 50-60°C) before checking the level, but not before draining. It is better to drain the oil warm so that it flows faster, but not hot to avoid burns. Warming up before checking the level is required for measurement accuracy.