Nissan Almera G15: how much antifreeze is in the cooling system and how to replace it

Nissan Almera G15 (2012–2019 model years) - a popular sedan with a reliable engine HR16DE (1.6 l), but even it requires regular maintenance. One of the key procedures is replacing antifreeze, and here owners often have a question: How much coolant is needed for a complete change? The answer depends on the year of manufacture, configuration and even climatic operating conditions.

In this article you will find not only the exact amount of antifreeze for Almera G15, but also step-by-step instructions for replacement, recommendations for choosing a fluid, as well as unique nuances that are not taken into account in standard manuals. For example, why after draining old antifreeze in the system can there be up to 0.5 liters liquid, and how this affects the overall fill volume.

Official data: how much antifreeze is in Nissan Almera G15

According to factory documentation Nissan, full volume of the cooling system Almera G15 is:

• 🔹 6.7 liters — for models with a manual transmission (manual transmission).
• 🔹 6.9 liters - for versions with variator (CVT).

The difference is 0.2 liters due to the additional heat exchanger of the variator, which also requires cooling. However, in practice, when replacing, it is rarely possible to drain the entire volume - there is always 10–15% old fluid (approx. 0.7–1 liter). Therefore for complete replacement with flushing will be required 7–8 liters new antifreeze.

Modification	System volume (l)	Recommended replacement volume (l)	Antifreeze type
Almera G15 1.6 manual transmission (2012–2015)	6,7	7,0–7,2	Nissan L250 or similar (green, G11)
Almera G15 1.6 CVT (2012–2019)	6,9	7,5–7,8	Nissan L250 or similar (green, G11)
Almera G15 restyling (2016–2019)	6,8	7,3–7,5	Nissan L255 (purple, G12+)

Important: for models 2016 and newer Nissan recommends using antifreeze L255 (purple, class G12+), which has an extended service life - up to 5 years or 100,000 km. In earlier versions it is possible to use L250 (green, G11).

Why the volume of antifreeze may differ from factory data

In practice, owners Almera G15 They are faced with the fact that when replacing, less fluid is used than indicated in the manual. Reasons:

• 🔧 Incomplete drain: there is up to 0.5–1 liter old antifreeze, especially if you do not use a vacuum pump.
• 🔧 Airing the system: If filled incorrectly, air pockets form, causing the fluid level to appear lower.
• 🔧 Cooling system modifications: on some versions (for example, for hot climates) an additional radiator is installed, increasing the volume by 0.3–0.5 liters.

To avoid mistakes, after filling antifreeze necessarily follow the procedure pumping the system:

1. Start the engine and let it idle 3–5 minutes.
2. Check the level in the expansion tank - it should be between the marks MIN And MAX.
3. If necessary, add antifreeze and repeat the procedure.

Step-by-step instructions: how to drain and refill antifreeze in Almera G15

To replace antifreeze you will need:

• 🔧 New antifreeze (7–8 liters).
• 🔧 Container for draining (minimum 8 liters).
• 🔧 Key on 10 mm (for radiator drain plug).
• 🔧 Screwdriver (for removing engine protection, if any).
• 🔧 Distilled water (for rinsing, if required).

Make sure the engine is cool (temperature below 50°C)|

Prepare a container to drain old antifreeze|

Remove the engine protection (if installed)|

Open the expansion tank cap to relieve pressure-->

Step 1. Drain the old antifreeze

1. Place the car on a level surface or raise the front end (for better drainage).
2. Remove the expansion tank cap.
3. Place a container under the radiator drain plug (located in the lower right corner).
4. Unscrew the plug with the key to 10 mm and wait until it drains completely.
5. To drain antifreeze from the cylinder block, unscrew the plug on the block (next to the oil filter).

Step 2: Flush the system (if necessary)

If the old antifreeze is dirty or there were leaks in the system, flushing is recommended:

1. Tighten the drain plugs.
2. Pour distilled water into the system through the expansion tank.
3. Start the engine and let it run 10–15 minutes.
4. Drain the water and repeat the procedure until the drained liquid is clear.

Step 3. Filling with new antifreeze

1. Make sure all plugs are tight.
2. Slowly pour new antifreeze into the expansion tank to the mark MAX.
3. Start the engine and warm it up to operating temperature (the fan should work).
4. Check the level and add antifreeze if necessary.

What to do if antifreeze runs out quickly?

If after replacement the antifreeze quickly disappears from the tank, check:

1. Tightness of pipe connections (especially at the junction with the radiator and pump).

2. Condition of the radiator and stove for leaks.

3. Expansion tank plug - it should hold pressure 1.1–1.3 atm.

4. Presence of antifreeze in the oil (a sign of a broken cylinder head gasket).

Which antifreeze to choose for Nissan Almera G15

The manufacturer recommends using original fluids:

• 🔹 Nissan Coolant L250 (green, G11) - for models up to 2016.
• 🔹 Nissan Coolant L255 (purple, G12+) - for restyled versions (2016–2019).

However, there are worthy analogues on the market:

Brand	Title	Color	Compatibility
CoolStream	Premium	Green	Analogue Nissan L250
Sintec	Unlimited G12++	Purple	Analogue Nissan L255
Motul	Inugel Optimal	Yellow	Universal (suitable for all versions)

Important! Never mix different types of antifreeze (for example, G11 And G12+). This may lead to:

• 🚨 Sedimentation and radiator clogging.
• 🚨 Corrosion of aluminum parts (including the stove radiator).
• 🚨 Loss of anti-corrosion properties.

Common mistakes when replacing antifreeze and how to avoid them

Even experienced car owners sometimes make mistakes that lead to serious problems. Here are the most common:

⚠️ Attention! If after replacing the antifreeze the engine begins to overheat, check the operation of the thermostat. On Almera G15 it often gets stuck in the closed position, which leads to overheating even with a working cooling system.

• ❌ Using water instead of antifreeze - leads to corrosion and freezing in winter.
• ❌ Incomplete drainage of old antifreeze - reduces the effectiveness of the new fluid.
• ❌ Ignoring air jams - may cause overheating or poor operation of the stove.
• ❌ Filling antifreeze by eye — an insufficient level leads to pump cavitation, an excessive level leads to increased pressure.

To avoid problems:

1. Always use only recommended types of antifreeze.
2. After pouring bleed the system (as described above).
3. Check the antifreeze level every 10,000 km or before a long trip.

When to change antifreeze in Nissan Almera G15: regulations and signs of wear

According to the regulations Nissan, antifreeze in Almera G15 requires replacement:

• 📅 Every 90,000 km or 4 years - for antifreeze L250 (G11).
• 📅 Every 100,000 km or 5 years - for antifreeze L255 (G12+).

However, there are signs that the liquid has lost its properties ahead of schedule:

• 🔍 Color change (darkening, turbidity).
• 🔍 Appearance of sediment in the expansion tank.
• 🔍 Frequent engine overheating for no apparent reason.
• 🔍 Foam or bubbles in antifreeze (a sign of exhaust gases).

If you notice any of these symptoms, don't delay replacement - worn-out antifreeze not only cools worse, but can also cause corrosion of system parts.

FAQ: Answers to frequently asked questions about antifreeze in Nissan Almera G15

Is it possible to mix L250 and L255 antifreeze?

No, you cannot mix them. L250 (green) belongs to the class G11, and L255 (purple) - to G12+. Their chemical compositions are incompatible, which may result in gelation or precipitation. If you need to add antifreeze, use only the type that is already in the system.

How much antifreeze does it take to add between changes?

Antifreeze is normal Almera G15 shouldn't leave at all. If the level drops, this is a sign of a leak. Allowable consumption - no more 100–150 ml per 10,000 km (due to water evaporation). If more leaks, look for a leak in the radiator, pipes or pump.

What happens if you fill in antifreeze of a different color?

The color of antifreeze is not an indicator of its type, but manufacturers often adhere to standards:

• 🟢 Green - G11 (silicate).
• 🟣 Purple - G12+ or G13 (carboxylate).
• 🟡 Yellow/orange — G12++ or G13 (lobrid).

If you fill the antifreeze with another type (not colors!), this may cause a chemical reaction, system clogging or corrosion. Always focus on specification, and not by color.

Do I need to flush the system when replacing antifreeze?

Flushing is required in the following cases:

• 🔧 When switching from one type of antifreeze to another (for example, from G11 on G12+).
• 🔧 If the old antifreeze is dirty, with sediment or rust.
• 🔧 After engine repair or leak elimination.

For rinsing use distilled water or special cleaning compounds (for example, Liqui Moly Kuhlerreiniger).

Can I use antifreeze concentrate?

Yes, but it's needed dilute correctly. For Almera G15 optimal proportion:

• 💧 1:1 (50% concentrate + 50% distilled water) - protection up to -35°C.
• 💧 2:1 (66% concentrate + 34% water) - protection up to -50°C (relevant for northern regions).

Do not use tap water - it contains salts that can cause corrosion.