Modern Nissan Murano generation Z52 is a complex engineering complex, where each component requires special attention to maintenance. The engine cooling system plays a critical role in maintaining optimal thermal conditions, especially given the high loads on the engine. turbocharged engines and hybrid installations available in this body style. Wrong choice of fluid or violation of replacement regulations can lead to irreversible consequences for aluminum cylinder block.
Owners often underestimate the importance of coolant specification, believing that any “green” or “red” antifreeze will be suitable for a Japanese car. This is a fundamental mistake that could cost you expensive repairs. radiator or thermostat. In this article we will analyze the official requirements of the manufacturer, the specific properties of fluids for the Z52 model and the nuances of self-replacement.
Official Nissan Specifications and Approvals
The manufacturer strictly regulates the chemical composition of the coolant used in the engine VQ25DD or VQ35DE (depending on the market and year of manufacture). The main requirement is the use of liquids based on carboxylate technology (OAT), which do not contain silicates and phosphates. These additives provide long-lasting corrosion protection without sludge formation.
The original fluid poured from the conveyor has a code 26200-1AA0A and bright blue color. It is this shade that is the marker of the correct chemical formula for Nissan Murano Z52. The use of mixtures with other colors (green, yellow) without precise knowledge of their composition is strictly not recommended, as this can cause a chemical reaction and precipitation.
- 🔵 The official color of the original liquid is blue.
- 🛡️ Protection technology - carboxylate (OAT) without silicates.
- ⏳ The service life of the original composition is up to 250,000 km or 10 years.
⚠️ Attention: Mixing antifreeze with an unknown chemical composition can lead to instant destruction of rubber pipes and seals of the cooling system.
If you cannot find the original liquid, you need to select an analogue that has the specification Nissan Long Life Antifreeze/Coolant Type 2. It is important to check the availability of appropriate approvals on the canister, and not rely on marketing names “for Japanese cars”. Not all fluids marketed as Japanese are suitable for modern engines with aluminum alloys.
Analog market analysis and acceptable replacements
The original blue liquid is not always available, especially in remote regions. In such cases, it is permissible to use high-quality analogues from global manufacturers, but only subject to strict compliance with the specifications Nissan. There are many brands on the market offering carboxylate antifreezes that do an excellent job of cooling.
When choosing an analogue, pay attention to the freezing temperature threshold. For the climatic conditions of most regions of Russia and the CIS, it is recommended to use liquids with a crystallization temperature no higher -40°C, and in northern latitudes - up to -50°C. This will ensure that the engine starts even in extreme cold without the risk of radiator rupture.
- 🏷️ Check the approval label (Nissan Type 2).
- ❄️ Ensure low temperature performance (down to -40°C and below).
- 🧪 Avoid mixing different colors, even if the tolerances are the same.
Some owners practice replacing the original blue fluid with high-quality red antifreeze (for example, G12++ or G13), but this is only possible with a complete and thorough flushing of the system with distilled water. If even a small fraction of the old composition remains in the system, chemical incompatibility may appear after several thousand kilometers.
- Original Nissan
- Domestic brands (Felix, Sintec)
- European analogues (Motul, Castrol)
- Chinese brands
Replacement frequency and condition diagnosis
Despite the manufacturer’s statements about “eternal” antifreeze, actual operating practice shows the need for periodic replacement. Chemical additives burn out over time, and the liquid loses its protective properties. For Nissan Murano Z52 The first routine inspection of the condition of the coolant is recommended to be carried out after 60,000 km or every 4 years.
If you operate your vehicle in harsh conditions such as frequent traffic jams, towing trailers or extreme temperature changes, the replacement interval should be shortened. In such modes boiling antifreeze occurs more often, which accelerates the degradation of additives. Regularly checking the density and color of the fluid will help avoid sudden overheating.
- 🛠️ The first replacement is at 60,000 km or after 4 years.
- 🔄 Subsequent replacements - every 40,000 km or 2 years.
- 🔍 Annual check of level and density with a hydrometer.
⚠️ Attention: If you notice that the fluid has acquired a brown or rusty tint, immediately stop using the vehicle and completely flush the system.
To diagnose the condition of the fluid, you can use special test strips available in auto stores. They allow you to determine the level of acidity (pH) and the presence of corrosive components. If the test shows high acidity, this is a sure sign that the additives have exhausted their service life, and replacement antifreeze inevitable.
☑️ Diagnostics before replacement
Step-by-step instructions for replacing coolant
The process of replacing antifreeze with Nissan Murano Z52 Requires caution and compliance with safety precautions. Never open the radiator or expansion tank cap on a hot engine! The cooling system builds up high pressure and the release of boiling liquid can cause severe burns. Wait until the motor cools down completely.
First you need to remove the engine protection, if installed, and find the radiator drain plug. It is usually located at the bottom of the radiator. Place a container to drain the old fluid (the volume of the cooling system is about 11-12 liters). Unscrew the cap and let all the liquid drain out.
After draining, close the plug and add distilled water for rinsing. Start the engine for 10-15 minutes, turning the heater on to maximum to warm up the interior radiator. Then drain the water again. Repeat the procedure until the drained water becomes completely clear.
Filling of new antifreeze begins through the expansion tank. Fill the liquid up to the mark MAX. Screw the cap on, but not all the way, so that the system can “breathe” while bleeding. Start the engine and let it idle until the cooling fan comes on.
How to properly bleed the system?
While the engine is running, open the expansion tank cap and slowly press the upper radiator hose. This will help remove air pockets. If bubbles appear in the reservoir, add some liquid.
- ⚙️ Use only distilled water for rinsing.
- 🌡️ Be sure to warm up the cabin radiator by turning on the stove.
- 💨 Carefully remove air jams from the system.
Take a photograph of the fluid level in the tank before starting work in order to have a standard for monitoring after replacing and bleeding the system.
Possible problems and errors during maintenance
One of the most common mistakes is ignoring the process of removing air pockets. Air in the cooling system can cause local overheating, which is not detected by the temperature sensor, but destroys the cylinder head gasket. If after replacement the engine temperature rises faster than usual, an air lock is likely.
Another problem is the use of low-quality or counterfeit antifreeze. There are many counterfeit products on the market that may have the correct color, but do not contain the necessary additives. This leads to corrosion from the inside and clogging of the thin radiator channels. Always buy consumables from authorized dealers or trusted stores.
Often, owners forget to replace the O-rings of the drain plug. An old ring may not seal properly, causing leaks and loss of fluid levels. It is recommended to install a new seal whenever antifreeze is replaced.
If the cooling system shows signs of contamination (rust, sludge), simply flushing with water may not be enough. In this case, special cleaning chemicals are used, which are poured into the system and work according to the instructions. However, such products must be used with caution so as not to damage aluminum details.
High-quality bleeding of the system from air is the key to stable operation of the thermostat and the absence of local overheating of the engine.
Specifics of hybrid versions of Murano
For hybrid versions Nissan Murano The cooling system has additional circuits that cool the power electronics and battery. The fluid in these circuits may differ in composition from that used in an internal combustion engine. Usually this is a special dielectric liquid or antifreeze with special properties.
When servicing a hybrid, it is extremely important not to confuse the circuits. Inlet and outlet pipes may be colored or have different markings. Incorrect connection of the hoses can lead to a short circuit in the inverter or overheating of the traction battery. It is recommended to entrust the maintenance of hybrid versions to specialized services.
However, the basic principle of choosing coolant for a hybrid internal combustion engine remains the same: use only original blue antifreeze or certified analogues. Ignoring this requirement can damage complex electronic components, the repair of which will cost a significant amount.
| Parameter | Original fluid (Nissan) | Acceptable analogue | Invalid type |
|---|---|---|---|
| Color | Blue | Blue or Red (after rinsing) | Green, Yellow |
| Technology | OAT (Carboxylate) | OAT / HOAT | Hybrid (with silicates) |
| Freezing point | -40°C | -40°C ... -50°C | -25°C (for warm regions) |
| Service life | 250,000 km / 10 years | 200,000 km / 5-7 years | 100,000 km / 2-3 years |
| Warp | Ethylene glycol | Ethylene glycol | Propylene glycol (sometimes) |
Conclusion and results of service
The correct choice and timely replacement of antifreeze is an investment in the long life of your engine. Nissan Murano Z52. Ignoring manufacturer specifications can lead to costly repairs that can easily be avoided by following simple rules. Remember that saving on consumables always results in higher costs in the future.
Monitor the color and fluid level, carry out regular diagnostics and use only proven brands. If you are not confident in your abilities or are afraid of damaging the complex components of the hybrid, contact a professional. But even if you replace it yourself, following all the recommendations, you can keep the car in perfect condition.
A well-maintained cooling system ensures not only reliability, but also comfort, allowing the stove to effectively warm up the interior even in severe frosts. Take care of your car, and it will give you impeccable performance for many years to come.
What kind of antifreeze should be poured into the Nissan Murano Z52?
We officially recommend original Nissan Long Life Antifreeze/Coolant Type 2 (blue) with part number 26200-1AA0A. Quality analogs based on carboxylate technology (OAT) that meet this specification are permitted.
Is it possible to mix blue and red antifreeze?
It is strictly not recommended to mix them in one system without complete flushing. If you plan to switch from one type to another, you must first drain the old fluid, rinse the system with distilled water, and only then fill in the new one.
How often does antifreeze need to be changed on Murano Z52?
It is recommended to carry out the first replacement at a mileage of 60,000 km or after 4 years of operation. Subsequent replacements are carried out every 40,000 km or every 2 years, depending on operating conditions.
What to do if the antifreeze level constantly drops?
A drop in level indicates a leak. Check the pipes, radiator, pump and expansion tank for cracks and leaks. It is also worth checking the tightness of the cylinder head gasket if air bubbles appear in the system or oil in the expansion tank.
Can water be used instead of antifreeze in an emergency?
Only distilled water and only for a short time until the nearest service. Plain water will cause corrosion of aluminum parts, and the lack of additives will lead to overheating or freezing. After this, the system must be flushed and filled with the correct antifreeze.