Replacing antifreeze in Nissan Almera: a complete guide with photos and videos

Replacing antifreeze in Nissan Almera - a procedure that many car owners put off until the last minute, until the engine starts to overheat or the stove stops heating. Meanwhile, timely change of coolant not only prolongs the life of the engine, but also prevents corrosion of the radiator, pump and pipes. In this article we will figure out what antifreeze to fill in Almera, how often to change it and how to replace it yourself - without contacting service.

Models Nissan Almera (especially popular in Russia N16, G15 And N17) have their own nuances in the cooling system. For example, in Almera G15 with engine HR16DE antifreeze volume is 6.7 liters, and in N16 with motor QG15DE/QG18DE - about 5.5 liters. Incorrect fluid selection or replacement errors can lead to air locks, overheating, or even damage to aluminum engine parts. Therefore, we approach the process responsibly.

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

The manufacturer recommends replacing antifreeze in Nissan Almera every 90,000 km or once every 5 years - whichever comes first. However, these terms are valid for the original liquid Nissan Coolant L248 Premix (blue color). If you uploaded an analogue, for example, CoolStream A-110 or Sintec Unlimited G12++, the interval may be reduced to 3–4 years.

The following signs indicate the need for replacement:

• 🔴 Color change — the antifreeze has become rusty, brown or cloudy. This indicates corrosion or decomposition of additives.
• 🌡️ Frequent engine overheating, even with the cooling fan running.
• ❄️ The stove blows cold air - Possible air lock or loss of liquid properties.
• 💧 Leaks or traces of antifreeze under the car (especially after stopping).

If you ignore these symptoms, you risk breaking the thermostat, pump, or even cylinder head deformation increases significantly. For example, in Almera N16 with aluminum block QG18DE overheating often leads to cracks in the cylinder head, the repair of which costs 50,000+ rubles.

⚠️ Attention: Never add water to antifreeze by eye - this upsets the balance of additives and accelerates corrosion. In an emergency (such as a leak), use only distilled water, but replace the fluid completely as soon as possible.

What antifreeze to fill in Nissan Almera: choice by model and year

Cooling system Nissan Almera sensitive to the type of antifreeze. Original fluid from Nissan - Coolant L248 Premix (article KE902-99932) - suitable for all generations, but it is difficult to find in retail. As an alternative, choose analogues with approval Nissan/ Renault 41-01-001/-S Type D.

The table below shows proven options for different models:

Model and engine	Recommended antifreeze	Color	System volume, l
Almera N16 (QG15DE/QG18DE, 2000–2006)	CoolStream A-110, Sintec Unlimited G12++	Red/pink	5,5–6,0
Almera Classic G15 (HR16DE, 2012–2018)	Nissan Coolant L248, Ravenol HJC Hybrid	Blue/green	6,7
Almera N17 (H4M, 2019–present)	Motul Inugel Optimal, Liqui Moly KFS 2001 Plus	Purple	6,2

Important: do not mix antifreeze of different colors and types! For example, blue G11 (silicate) and red G12++ (carboxylate) when mixed, they form a sediment that will clog the radiator. If you don't know what was uploaded earlier, flush the system with distilled water or a special cleaner (for example, Liqui Moly Kuhlerreiniger).

Preparing for replacement: tools and safety precautions

To replace antifreeze in Nissan Almera you will need:

• 🔧 Key for 10 or 12 (for the drain plug on the radiator).
• 🛠️ Pliers (for pipe clamps).
• 🧤 Gloves and rags — antifreeze is toxic!
• 🚽 Drain container (volume of at least 7 liters).
• 💧 Distilled water (10–15 liters for rinsing).
• 🔋 New antifreeze (see table above).

Before starting work:

1. Make sure the engine completely cooled down (temperature not higher than 40°C).
2. Place the machine on a level surface or a lift.
3. Remove the negative terminal from the battery to avoid short circuit when draining.

⚠️ Attention: Antifreeze is poisonous to people and animals. Pour it into an airtight container and dispose of it through special collection points (do not pour it down the drain!). In case of contact with skin, wash with soap and water.

Make sure the engine is cold|

Prepare a container for draining (minimum 7 l)|

Disconnect battery terminal|

Wear gloves and safety glasses|

Check for new antifreeze and distilled water -->

Step-by-step instructions: how to drain old antifreeze

The process of draining antifreeze into Nissan Almera depends on the generation. Let's consider a universal algorithm for G15 And N16:

1. Remove the engine protection (if it interferes with access to the drain plug).
2. Locate the drain plug on the radiator - it is located in the lower left corner (for Almera G15 - under a plastic casing).
3. Place the container and unscrew the cap with a 10mm wrench. Be prepared - the liquid will flow under pressure!
4. Unscrew the expansion tank capto speed up draining.
5. Drain the antifreeze from the cylinder block (if there is a separate plug - on N16 it is located next to the oil filter).

On Almera N17 (from 2019) the drain plug may be missing - in this case you will have to remove the lower radiator hose. To do this:

1. Loosen the pipe clamp with pliers.
2. Remove the hose and direct it into a container.
3. Wait until it drains completely (about 10–15 minutes).

After draining, check the condition of the pipes and clamps. If the rubber hoses are cracked or have lost their elasticity - replace them. On Almera G15 The pipe from the radiator to the pump often wears out (part number 21083-4M50A).

Flushing the cooling system: when is it needed and how to do it

Flushing is required in three cases:

• 🔄 You don’t know what antifreeze was filled in earlier.
• 🧪 When drained, the liquid turned out to be dirty or with sediment.
• 🚗 The car was bought secondhand, and the service history is unknown.

For rinsing use:

• Distilled water - a budget option, but requires 2-3 cycles.
• Special cleaners (For example, Liqui Moly Kuhlerreiniger or Hi-Gear Radiator Flush) - remove scale and rust in 1 cycle.

Washing instructions:

1. Close the drain plug and fill in flushing fluid (or water) to the mark MAX in the expansion tank.
2. Start the engine and let it run 10–15 minutes at idle speed (before the thermostat opens).
3. Drain the liquid and repeat the procedure until the water runs clear.

On Almera N16 With a mileage of more than 150,000 km, flushing is especially important - sediment from the decomposition of old antifreeze accumulates in the system. If you ignore this, the new antifreeze will quickly lose its properties.

What happens if you don't flush the system?

When old and new antifreeze are mixed, the additives react to form gel-like clumps. They clog the radiator channels, thermostat and even the stove. As a result:

- The engine overheats (risk of seizure).

- The stove stops heating.

- The load on the pump increases, which leads to its breakdown (replacement cost - from 8,000 rubles).

Filling with new antifreeze: how to avoid air locks

Pour antifreeze into Nissan Almera need to be done slowly to avoid the formation of air pockets. Follow the algorithm:

1. Make sure all drain plugs are closed and hoses are connected.
2. Start pouring liquid into the expansion tank thin stream.
3. When the level reaches MAX, close the tank lid.
4. Start the engine and let it run 5–7 minutes at idle speed.
5. Rev up 2,500–3,000 rpm for 30 seconds - this will help expel the air.
6. Add antifreeze to the level (if necessary).

On Almera G15 And N17 to remove air from the stove:

1. Set the temperature control to maximum (HI).
2. Turn on the heating fan at full power.
3. Open the expansion tank cap and squeeze the upper radiator hose - air bubbles should come out of it.

If after replacement the heater blows cold air, it means there is air left in the system. To remove it:

• 🔧 Loosen the clamp of the upper radiator pipe and let the air escape (there will be a hissing sound).
• 💧 Add antifreeze to the level.

⚠️ Attention: Do not use ethylene glycol based antifreeze (such as Antifreeze) in Nissan Almera — it is aggressive to aluminum parts of the engine and radiator. Original liquid Nissan L248 contains propylene glycol, which is safe for modern engines.

Common mistakes and how to avoid them

Even experienced car owners make mistakes when replacing antifreeze. Here are the most common:

• 🚫 Mixing different types of antifreeze — leads to the formation of sediment and corrosion. Always flush the system when changing brands.
• 🚫 Ignoring air jams - is fraught with overheating. Always warm up the engine after filling and bleed the air.
• 🚫 Using tap water for washing - the salts contained in it form scale. Only distilled!
• 🚫 Overfilling or underfilling antifreeze. The optimal level is between MIN And MAX on a cold engine.

On Almera N16 People often forget to drain antifreeze from the cylinder block, limiting it only to the radiator. As a result, the system remains up to 1–1.5 liters of old fluid, which shortens the service life of the new antifreeze.

Another typical problem is leak after replacement. If drops appear under the car after adding new antifreeze, check:

• 🔧 Tightness of the drain plug.
• 🔧 Condition of pipes and clamps (on Almera G15 The pipe from the stove often leaks).
• 🔧 Radiator integrity (especially if there have been minor accidents before).

FAQ: answers to frequently asked questions

Is it possible to use antifreeze of a different color?

The color of antifreeze is not an indicator of properties, but only a dye. However, manufacturers adhere to generally accepted standards: red/pink - G12++, blue/green - G11, purple - G13. B Nissan Almera better stick to it original color (blue for G15, red for N16) to avoid additive conflicts. If in doubt, flush the system and fill with the recommended antifreeze.

How much antifreeze is needed for a complete replacement?

Volume depends on model:

• Almera N16 (QG15DE/QG18DE) — 5.5–6.0 l.
• Almera G15 (HR16DE) — 6.7 l.
• Almera N17 (H4M) — 6.2 l.

Buy antifreeze with a reserve (7–8 liters), since some of the liquid will remain in the system when drained.

How to check the antifreeze level?

The level is checked in expansion tank (white plastic tank with a lid marked COOLANT). The optimal level is between the marks MIN And MAX on cold engine. If the tank is empty and the engine is hot - do not open the lid (risk of burns!). Wait for it to cool down.

What should I do if the engine overheats after replacing the antifreeze?

Reasons for overheating after replacement:

1. Air lock — bleed the air (see section above).
2. Faulty thermostat — check whether it opens when heated (the upper radiator pipe should become hot to the touch).
3. Radiator clogged — rinse it or check for the presence of external contaminants (lint, insects).
4. Wrong antifreeze - if flooded Antifreeze or a cheap equivalent, drain and flush the system.

If the problem persists, check the pump and temperature sensor.

Is it possible to drive without antifreeze if there is nowhere to buy it?

For a short time (for example, to get to the store) you can fill distilled water, but only in warm weather. In winter, the water will freeze, which will lead to rupture of the radiator or cylinder block. Maximum distance on water - no more than 50 km at speeds up to 60 km/h. After the trip be sure to drain the water and add antifreeze.