Antifreeze for Nissan Qashqai: what to fill, volume, replacement time

Choosing antifreeze for Nissan Qashqai - a task that requires attention to detail. Not only the stable operation of the engine, but also the life of the pump, radiator and pipes depend on the correct coolant. In this article we will look at what antifreeze is poured from the factory, what analogues are suitable for J10, J11 And J12, as well as the nuances of replacement - from volume to type compatibility.

Many owners are faced with conflicting information: some advise green antifreeze, others insist on purple or blue. We analyzed the official recommendations Nissan, technical bulletins and service center reviews to provide clear answers. We will pay special attention risks of mixing different types of antifreeze This is one of the main causes of corrosion in the cooling system.

Original Nissan antifreeze for Qashqai: part numbers and composition

From factory to Nissan Qashqai all generations are filled with coolant based on ethylene glycol with additive package Nissan Long Life Coolant (type OAT - organic acids). Official articles:

• 🔹 KE902-99932 — concentrate (1 l), requires dilution with distilled water;
• 🔹 KE902-99931 - ready-made liquid (5 l), purple;
• 🔹 KE902-99944 - for markets with hot climates (high boiling point).

Original antifreeze color: purple (sometimes with a bluish tint). This is not just a marketing ploy: the pigment indicates the composition of additives compatible with aluminum engine parts MR20DD, HR16DE And M9R. Important: Nissan does not recommend the use of silicate-based fluids (e.g. G11 or G12+), as they can cause deposits in the cooling system passages.

Service life of original antifreeze - 5 years or 100,000 km (whichever comes first). However, in the Russian climate with sudden temperature changes, many services advise reducing the interval to 3–4 years.

Analogues of the original antifreeze: what can be filled

If the original antifreeze Nissan is not available or its price seems too high, you can use analogues with identical composition. The main rule: the liquid must meet the specification JIS K 2234 (Japanese standard) or BS 6580:2010 (British standard for OAT antifreeze). Suitable options:

Brand	Title	Article	Color	Compatibility
Coolstream	Premium OAT	CS010-005	Purple	Full
Sintec	Unlimited G12++	OB-12++	Red	Partial (requires flushing)
Motul	Inugel Optimal	106365	Yellow	Full
Liqui Moly	Kuhlerfrostschutz KFS 2001 Plus	8844	Orange	Partial (for diesel engines)

⚠️ Attention: Antifreeze Sintec Unlimited G12++ And Liqui Moly KFS 2001 Plus have a different color, but they can be used only after the system has been completely flushed. Mixing with original purple antifreeze will cause sediment to form and risk engine overheating.

For Qashqai J10 (2007–2013) with engines MR20DE And K9K the use of class antifreeze is allowed G12+, but with mandatory replacement through 3 years. B J11 And J12 (2014–present) better stick to OAT standard (purple or yellow liquids).

Antifreeze volume in the Qashqai cooling system

The volume of coolant depends on the generation of the car and the type of engine. Below are the details for a complete replacement (including engine block and heater core):

• 🔧 Qashqai J10 (2007–2013):
• 🔹 MR20DE (2.0 l) — 7.2 l;
• 🔹 K9K (1.5 dCi) — 6.5 l;
• 🔹 HR16DE (1.6 l) — 6.8 l.
• 🔧 Qashqai J11 (2014–2021):
• 🔹 MR20DD (2.0 l) — 7.5 l;
• 🔹 R9M (1.6 dCi) — 7.0 l;
• 🔹 HR16DE (1.6 l) — 6.8 l.
• 🔧 Qashqai J12 (2021–present):
• 🔹 MR20DD — 7.5 l;
• 🔹 M9T (1.7 dCi) — 7.2 l.

For partial replacement (for example, when topping up), it is enough 3–4 liters. However, if the system has been completely drained or flushed, the full volume will be required. Please note that there is up to 0.5–1 l old fluid, so for a quality replacement you may need 10–15% more antifreeze.

⚠️ Attention: B Qashqai J12 with hybrid installation E-Power antifreeze volume increased to 8.0 l due to the additional cooling circuit of the inverter. Use only original fluid KE902-99931.

When to change antifreeze: signs and regulations

Official regulations Nissan provides for replacing antifreeze every 5 years or 100,000 km. However, in real operating conditions (frequent traffic jams, extreme temperatures, aggressive driving style) this interval is reduced. Signs that antifreeze has lost its properties:

• 🔥 Darkening of the liquid (the color becomes brown or black);
• 💧 The appearance of sediment or flakes in the expansion tank;
• 🌡️ Frequent engine overheating (temperature needle rises above the middle);
• 🚨 Test lamp lights up CHECK COOLANT on the dashboard;
• 🧊 Foam formation in the tank (a sign of air entry or additive incompatibility).

To check the condition of the antifreeze, you can use test strips (for example, Coolant Test Strips from Motul). They show the pH level and additive concentration. If the pH is lower 7,5 or higher 10,5, the fluid must be replaced.

In Russian conditions, it is recommended to check antifreeze every 2 years, and replacement should be carried out through 3–4 years regardless of mileage. This is especially true for regions with frosts below −30°C, where ethylene glycol is diluted with water to 50/50, which accelerates the degradation of additives.

What happens if you don't change the antifreeze?

Long-term use of old fluid leads to corrosion of aluminum parts (cylinder head, radiator), clogging of channels with deposits and the risk of overheating. In critical cases this may result engine jamming or pipe rupture.

How to properly replace antifreeze: step-by-step instructions

Replacing antifreeze in Nissan Qashqai requires caution, as there are air pockets in the system that can lead to overheating. Procedure:

1. 🛠️ Drain old antifreeze:
   • Place the car on a level surface and let the engine cool.
   • Remove the expansion tank cap and open the drain valve on the radiator (lower left corner).
   • On engines MR20DD And R9M additionally unscrew the drain plug on the block (the key is on 14 mm).
2. 💦 Flush the system:
   • Close the drain holes and fill with distilled water.
   • Start the engine and let it run 5–10 minutes at idle speed.
   • Drain the water and repeat the procedure if the liquid comes out dirty.
3. 🔄 Add new antifreeze:
   • Pour in the concentrate diluted with distilled water in the proportion 50/50 (for −37°C).
   • Fill the system to the mark MAX on the expansion tank.
   • Start the engine, turn the heater on to maximum and add antifreeze after warming up.

⚠️ Attention: On Qashqai J11/J12 after replacing antifreeze it is necessary bleed the systemto remove air pockets. To do this:

1. Start the engine and let it run 2–3 minutes.
2. Press firmly on the upper radiator hose several times (this will help expel the air).
3. Check the fluid level and add if necessary.

If after replacement the heater blows cold air, it means there is air left in the system. In this case, repeat the bleeding procedure or contact the service for vacuum filling.

Common mistakes when replacing antifreeze and their consequences

Even experienced car owners make mistakes that can result in serious damage. Let's look at the most common ones:

• 🚫 Mixing different types of antifreeze:

  For example, adding G11 (green) to original purple OAT. This causes a chemical reaction that creates gel-like deposits that clog the radiator and engine passages.

• 🚫 Using tap water:

  Tap water contains salts and minerals that form scale when heated. This reduces heat transfer and can lead to overheating of the block head.

• 🚫 Incomplete drainage of old antifreeze:

  If there is more than 20% old fluid, new additives will not be able to fully protect the metal from corrosion.

• 🚫 Ignoring air pockets:

  Air in the system leads to local overheating and can cause cracks in the block head.

Another typical mistake is filling antifreeze “at the level” without taking into account its expansion when heated. The optimal level in the expansion tank on a cold engine is - between MIN and MAX. After warming up, the liquid will rise to MAX, and if there was too much initially, the excess will flow out through the valve.

⚠️ Attention: On Qashqai J12 with the system ProPilot Malfunctions in the cooling system may prevent adaptive cruise control from operating. This is due to temperature sensors that affect control algorithms.

Antifreeze for Qashqai with diesel engine: features

In diesel versions Nissan Qashqai (K9K, R9M, M9T) the cooling system operates under higher loads due to increased heat transfer. Therefore, additional requirements are imposed on antifreeze:

• 🔥 Elevated boiling point (not lower 130°C);
• 🛡️ Enhanced cavitation protection (for pump);
• 🔄 Diesel Particulate Filter (DPF) compatibility.

For diesels Nissan recommends using original antifreeze KE902-99944 or its analogues marked "For diesel engines". For example:

• 🔹 Coolstream Diesel OAT (article CS010-006);
• 🔹 Febi Bilstein (article 26160).

In diesel Qashqai It is recommended to change antifreeze more often - every 3 years or 60,000 km, since fuel combustion products (soot, sulfur oxides) enter the cooling system through the cylinder head gasket and accelerate the degradation of additives.

⚠️ Attention: If in the diesel expansion tank Qashqai an emulsion (light foam) has appeared, this is a sign of fuel getting into the antifreeze through a crack in the cylinder head. In this case it is required leakage diagnostics.

FAQ: Frequently asked questions about antifreeze in Nissan Qashqai

Is it possible to mix purple and green antifreeze?

No, you absolutely cannot mix them. Purple antifreeze (OAT) contains organic additives, and green (G11) - silicate. When mixed, a gel is formed that will clog the radiator and engine channels. If you had to add another type, flush the system and replace the antifreeze as soon as possible.

What antifreeze is included in the 2018 Qashqai J11 from the factory?

From factory to Qashqai J11 2018 filled with original antifreeze Nissan Long Life Coolant (purple, article number KE902-99931). This OAT liquid with an extended service life (up to 5 years).

What happens if you fill it with cheap antifreeze?

Cheap antifreezes often contain aggressive additives or insufficiently purified ethylene glycol. This leads to:

• 🔹 Corrosion of aluminum parts (block head, radiator);
• 🔹 Clogging of channels with deposits;
• 🔹 Reducing the pump resource;
• 🔹 Risk of engine overheating.

Saving on antifreeze will result in expensive repairs.

Do I need to flush the system when replacing antifreeze?

Flushing is required if:

• 🔹 The old antifreeze has darkened or there is sediment in it;
• 🔹 You are switching from one type to another (for example, from G11 on OAT);
• 🔹 There were leaks in the system and you added water.

For rinsing, use distilled water or special products (for example, Liqui Moly Kuhler-Reiniger).

How to check the antifreeze level?

The level is checked for cold engine according to the marks on the expansion tank:

• 🔹 MIN — minimum acceptable level;
• 🔹 MAX — maximum level.

It is optimal if the antifreeze is located in the middle between the marks. When checking on a hot engine, the level will be higher due to thermal expansion.