Changing the oil in the Nissan Qashqai 2021 CVT: a complete guide with nuances

⚠️ Attention: Never use oils labeled NS-2 or universal ATF fluids (for example, Dexron VI). They have a different viscosity and additive package, which will lead to belt slippage and failure of the variator. Also avoid fakes: original oil Nissan NS-3 Sold in cans with a holographic sticker and production date on the bottom.

Oil volume for a complete change - 7.8 l, for partial (drain/fill) - 4.5-5 l. If you plan to flush the variator, you will need an additional 3-4 liters to bleed the system. Please note that during a partial replacement, the old oil is mixed with the new one, so a complete replacement is preferable, although more expensive.

Tools and materials for changing the oil in the variator

To change the oil in the variator yourself Nissan Qashqai 2021 you will need:

Fresh NS-3 oil (8 l for a complete change)

Variator filter (article no. 31726-3XF0A)

Pan gasket (item no. 31397-3XF0A or equivalent Reinz 71-50135-10)

10 mm square wrench for drain plug

10 mm socket and ratchet for removing pan

Torque wrench (tightening torque 10 Nm)

Funnel with long spout for pouring oil

Container for draining waste (volume no less than 6 l)

Carburetor cleaner or kerosene for flushing the pan

New pan bolts (recommended, but not required)

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If you are planning complete replacement with washing, you will also need:

• 🔧 Hose for connection to the oil cooling fitting (diameter 8 mm).
• 🔧 Pump or a compressor to bleed the system.
• 🔧 Scanner (For example, Launch X431) to reset the oil aging counter (if available).

⚠️ Attention: When changing the oil in the variator Qashqai Sealants cannot be used instead of pan gaskets. Even a small amount of sealant that gets inside the variator can clog the valve body and solenoids. Also avoid using metal brushes to clean the pan - they leave particles that then circulate in the oil.

Cost of consumables for replacement (excluding oil):

• 💰 Variator filter - 1,200–1,500 ₽.
• 💰 Pallet gasket - 800–1,200 ₽.
• 💰 Pallet bolts (set) - 300–500 ₽.

Step-by-step instructions for changing the oil in the variator

The process of changing the oil in the variator Nissan Qashqai 2021 can be divided into two stages: partial (drain/fill) and full (with flushing). We will consider both options.

Partial change (40-50% oil)

This method is suitable for scheduled maintenance every 40-50 thousand km. It does not require special equipment and takes about 1.5 hours.

1. Warm up the variator. Start the engine and let it run for 5-7 minutes until the oil becomes liquid. Then drive 5-10 km, switching the variator selector in all positions (P → R → N → D).

2. Drain the old oil. Raise the vehicle on a lift or ramp. Unscrew the drain plug with a 10 mm wrench (tightening torque for reinstallation is 35 Nm). Place the container and wait until it is completely drained (about 4.5 l).

3. Remove the pan. Unscrew the 18 bolts of the pan (tightening torque during installation - 10 Nm). Be careful: about 0.5 liters of oil remains in the pan. Clean the tray and magnets from metal shavings (use a plastic scraper).

4. Replace the filter. The variator filter is located inside the box. Carefully remove it and install a new one (part number 31726-3XF0A). When installing, make sure that the filter O-ring is seated.

5. Install the pan with a new gasket. Before installation, apply a thin layer of oil to the gasket for a better seal. Tighten the bolts in a cross pattern to avoid distortion.

6. Fill with new oil. Use a funnel with a long spout. Fill 4.5 liters of oil through the filler hole (located next to the battery). Check the level on the dipstick - it should be between the marks MIN And MAX when the variator is warm.

Complete change (100% oil)

A complete replacement requires flushing the system and takes 2-3 hours. It is recommended to carry it out every 80-100 thousand km or when purchasing a used car.

Algorithm of actions:

1. Execute partial replacement (steps 1-6 from previous section).

2. Disconnect oil cooling hose from the radiator (lower pipe). Connect a transparent hose to it and lower it into a drainage container.

3. Start the engine. The old oil will begin to drain. As soon as clean oil comes out (after about 3-4 liters), turn off the engine.

4. Add new oil through the filler hole in the same volume as drained.

5. Repeat the procedure 2-3 times until the oil is completely clean.

6. Check the oil level with the variator warm (oil temperature should be 50-60°C). Top up if necessary.

⚠️ Attention: When completely replacing, you should not allow the variator to operate without oil for more than 30 seconds - this will lead to damage to the belt and cones. Also keep an eye on the color of the drained oil: if it is black with metal particles, this is a sign of critical wear of the variator.

How to check the oil level in the variator?

Checking the oil level in the variator Qashqai 2021 is a critical procedure. Too little or too much oil is equally harmful:

• ⚠️ Low level leads to oil starvation and overheating.
• ⚠️ High level causes the oil to foam and lose its properties.

The check is performed in the following order:

1. Warm up the variator to operating temperature (drive 10-15 km).

2. Place the car on a level surface and turn off the engine.

3. Remove the CVT dipstick (located to the right of the engine, next to the battery).

4. Wipe the dipstick with a clean cloth and insert it back until it stops.

5. Remove the dipstick again and check the level: it should be between the marks HOT MIN And HOT MAX.

If the level is lower MIN, add oil through the filler hole. If higher MAX — drain the excess through the drain plug. Please note that there are two marking zones on the dipstick: COLD (for cold oil) and HOT (for warmed up). You can check the level only using hot marks.

Common mistakes when changing oil in a variator

Even experienced car owners make mistakes that reduce the life of the variator. Here are the most common of them:

• 🔴 Using the wrong oil. Fill NS-2 instead of NS-3 or universal ATF fluids leads to belt slippage and overheating.
• 🔴 Failure to comply with the tightening torque of the pallet bolts. Over-tightening leads to deformation of the pan; under-tightening leads to oil leakage.
• 🔴 Ignoring filter replacement. The old filter becomes clogged with wear products, which reduces the oil pressure in the system.
• 🔴 Flushing the variator with kerosene or gasoline. These fluids destroy seals and seals.
• 🔴 Late oil change after purchasing a used car. The previous owner may not have kept up with maintenance.

One of the most dangerous mistakes is incorrect oil level check. Many owners check the level on a cold variator, focusing on the marks COLD. However, these marks are only intended as a rough estimate when refilling. The exact level can be determined only on a warm variator (50-60°C) according to marks HOT.

Another common problem is dirt getting into the variator when replacing. To avoid this:

• 🛠️ Wash the tray and magnets only with special cleaners (for example, Liqui Moly Pro-Line).
• 🛠️ Use new O-rings on the drain plug and filter.
• 🛠️ Do not leave the tray open for a long time - dust and debris can get inside.

How much does it cost to change the oil in a variator at an official dealer?

Cost of changing the oil in a variator Nissan Qashqai 2021 from an authorized dealer depends on the type of replacement and region. Average prices in Russia (as of August 2026):

The cost of work at the dealer usually includes:

• 🔧 Oil and filter change.
• 🔧 Washing the pan (if completely replaced).
• 🔧 Diagnostics of the variator for leaks and errors.
• 🔧 Reset the oil aging counter (if available).

Replacing it yourself will cost less (about 5,000–6,000 rubles for oil and consumables), but requires skills and tools. If you are not confident in your abilities, it is better to contact the service. Please note that some dealers will refuse the warranty if the oil change was not performed by them.

⚠️ Attention: In Moscow and St. Petersburg dealership centers Nissan they often offer packaged variator maintenance, which includes an oil change, diagnostics and updating the control unit firmware. The cost of such a package is 15,000–18,000 rubles, but it is justified if the car’s mileage exceeds 100 thousand km.

FAQ: Frequently asked questions about changing the oil in the Nissan Qashqai CVT