Cabin filter <em>Nissan Murano Z50</em>: how to choose and replace it yourself

Cabin filter in Nissan Murano Z50 - this is a small but critical element on which not only the cleanliness of the air in the cabin depends, but also the health of the driver and passengers. Many owners of this crossover underestimate the role of the filter, considering its replacement an optional procedure. However, ignoring routine maintenance leads to the accumulation of dust, bacteria and even mold in the ventilation system, which is especially dangerous for allergy sufferers and people with respiratory diseases.

In this article we will look at everything you need to know about the cabin air filter. Murano Z50: from signs of clogging to step-by-step instructions for replacement. You will learn which filters are suitable for this model, how to distinguish the original from the fake, and why saving on quality can result in expensive repairs to the climate system. And we’ll also reveal a unique life hack to extend the life of the filter without compromising its efficiency.

Why do you need a cabin filter and what will happen if you don’t change it?

The cabin filter is a barrier between the street air and the car's interior. B Nissan Murano Z50 he catches:

• 🌫️ Dust and fine particles (including exhaust soot and road grime)
• 🍃 Plant pollen (especially relevant in spring and summer for allergy sufferers)
• 🦠 Bacteria and mold spores (breed in the humid environment of the air conditioner)
• 🚗 Exhaust gases (in traffic jams, the CO₂ concentration in the cabin without a filter exceeds the norm by 5-6 times)

If the filter is clogged, the consequences do not appear immediately, but become critical:

• 🤧 Deteriorating health: chronic cough, headaches, exacerbation of asthma.
• 🌡️ Decrease in climate control efficiency: weak airflow, slow heating/cooling of the interior.
• 💨 Fogging of windows: due to impaired air circulation.
• 🔧 Heater fan failure: increased load on the engine due to the resistance of a clogged filter.

⚠️ Attention: B Murano Z50 with the system Auto A/C A clogged filter can cause air quality sensors to fail. This leads to random switching of airflow modes and even climate control failure!

The manufacturer recommends changing the filter every 15,000 km or once a year. But in the realities of Russian roads (dust, reagents, frequent traffic jams), it is better to reduce the interval to 10,000 km. And if you often drive on dirt roads or in a metropolis with high levels of smog - up to 7,000–8,000 km.

Signs of a clogged cabin filter in Nissan Murano Z50

How do you know if the filter needs replacing? B Murano Z50 There are several characteristic symptoms:

Sign	Reason	What to do
Weak airflow even at maximum fan speed	The filter is clogged with dust, air resistance has increased 2–3 times	Replacing the filter + checking the air ducts for debris
Unpleasant smell (dampness, mold) when the air conditioner is turned on	Accumulation of bacteria and fungi on the filter surface	Replacement + system treatment Anti-Bacteria Spray
Noisy stove operation (hum, whistle)	The fan is overloaded due to a clogged filter	Filter replacement + fan bearing diagnostics
Fogging of windows even in dry weather	Air circulation is impaired, humidity in the cabin is increased	Replacing the filter + checking the air conditioner drainage

Particularly dangerous mold smell — it signals the proliferation of microorganisms not only on the filter, but also in the air ducts. B Murano Z50 with a climate control system, this can lead to contamination of the entire air conditioner evaporator, and cleaning it will cost 15,000–20,000 rubles.

⚠️ Attention: If after replacing the filter the smell does not disappear, the problem lies deeper - in the air conditioner evaporator. In this case, only professional cleaning using a steam generator or chemical compounds will help.

Another indirect sign - increased fuel consumption. A clogged filter causes the climate control system to work harder, which increases the load on the engine. According to service centers, the difference can reach 0.3–0.5 l/100 km.

Choosing a cabin filter for Nissan Murano Z50: original vs analogues

For Murano Z50 (2007–2014) two types of filters are suitable:

• 🔹 Regular (dusty): only large particles (dust, soot) are retained.
• 🔹 Coal: additionally neutralize odors and harmful gases (recommended for the city).

Original filter from Nissan has an article number 27277-JM00A (dust) or 27277-JM00B (coal). Average price - 1,200–1,800 rubles. But there are worthy analogues on the market:

Brand	Article	Type	Price, ₽	Features
Mann	CU 22008	Coal	900–1 100	High quality filter material, suitable for allergy sufferers
Bosch	1 987 429 660	Coal	850–1 000	Good protection against exhaust gases, but a little thinner than the original
Filtron	K 1321A	Coal	700–900	Budget option, but service life is 20% less than the original
Sakura	CAF27277	Dust/coal	600–800	Japanese quality, but there are fakes

When choosing, pay attention to:

• 📏 Dimensions: the original filter has dimensions 205 × 200 × 25 mm. Analogs may differ by 1–2 mm, but this is not critical.
• 🔍 Quality of the coal layer: In cheap filters, carbon is often glued on only one side.
• 🏷️ Packaging: original filters Nissan have a hologram and barcode, which can be checked on the manufacturer’s website.

⚠️ Attention: Counterfeit brands Mann or Bosch often sold with part numbers that differ by 1–2 characters. Always check the number with the official catalogue!

If you live in a metropolis or are often stuck in traffic jams, it is better to choose carbon filter. It neutralizes exhaust gases and odors more effectively. For country trips, an ordinary dust one is sufficient.

Step-by-step instructions for replacing the cabin filter in Nissan Murano Z50

Replacing the filter in Murano Z50 takes no more than 15 minutes and does not require special tools. The filter is located behind the glove compartment, so access to it is as convenient as possible.

You will need:

• 🔧 New cabin filter (matching the article number).
• 🧹 Vacuum cleaner or brush for cleaning the air duct.
• 🔦 Flashlight (optional, for inspecting the air duct).
• 🧴 Disinfectant (for example, Liqui Moly Klima-Anlagen-Reiniger).

Replacement algorithm:

1. Open the glove compartment and empty it of its contents. Press the side latches (they are located on the sides closer to the interior) and lower the glove compartment down. It is not completely removable, but only folds back.
2. Remove the filter cover. It is located behind the glove compartment and is secured with two plastic latches. Gently pull it towards you.
3. Remove the old filter. It may be pinched tightly, so pull evenly to avoid tearing. Pay attention to the air direction arrow (it should point down).
4. Clean the air duct. Use a vacuum cleaner or brush to remove dust and debris. If there is mold, treat the surface with a disinfectant spray.
5. Install a new filter. The arrow on it should be pointing down (in the direction of air movement). Make sure the filter fits tightly without any gaps.
6. Reassemble everything in reverse order: close the lid, return the glove compartment to its place.

If there is still a smell after replacement, use ozonizer or a special climate system cleaner. B Murano Z50 a suitable remedy for this Step Up Airco Clean — it is sprayed through the air intake and kills bacteria in the air ducts.

What to do if the filter does not fit into place?

If the new filter does not fit into the groove, check its dimensions (should be 205x200x25 mm). Sometimes it helps to slightly bend the edges of the filter. If the problem is the deformation of the plastic frame of the air duct, it can be carefully corrected with a flat-head screwdriver.

Cleaning vs replacement: which is more effective for Nissan Murano Z50

Many owners Murano Z50 trying to save money by cleaning the filter instead of replacing it. But this only works in one case - if the filter coal and is not critically clogged (for example, after 5,000–7,000 km).

How to clean the filter:

1. Remove the filter and shake off any large debris.
2. Vacuum both sides (use a soft brush attachment).
3. Rinse under a gentle stream of warm water (no detergent!).
4. Dry in the sun or with a hairdryer (charcoal filters cannot be dried at high temperatures!).
5. Treat with an antibacterial spray (eg 3ton Air Conditioner Cleaner).

However, even after cleaning, the filter efficiency decreases by 30–50%, because:

• 🔬 Micropores are clogged forever.
• 🧪 The carbon layer loses its adsorbing properties.
• 🦠 Bacteria may remain deep in the material.

⚠️ Attention: Cleaning a regular (non-charcoal) filter is useless - its fibrous structure is not restored after washing. Such filters only change!

If you do decide to clean the filter, do it no more often. 1 time. After this, it must be replaced. And remember: savings in 1,000–1,500 rubles on a new filter may result in repair of the stove or air conditioner 10,000–30,000 rubles.

Common mistakes when replacing a filter and how to avoid them

Even something as simple as replacing the cabin filter can be done incorrectly. Here are the typical mistakes of owners Murano Z50:

Error	Consequences	How to avoid
Installing the filter upside down (arrow pointing up)	Poor air circulation, rapid clogging	The arrow on the filter should point down (in the direction of air flow)
Using the wrong filter size	Gaps between the filter and the air duct, entry of unfiltered air	Check the article number and dimensions (205×200×25 mm)
Ignoring air duct cleaning	Mold and bacteria remain in the system, the smell does not disappear	Always vacuum the air duct and treat it with an antibacterial spray
Buying cheap no-name filters	Low filtration, rapid wear, risk of allergies	Choose trusted brands: Mann, Bosch, Sakura

Another common problem is damage to glove compartment latches when removing it. B Murano Z50 plastic becomes brittle over time, so open the glove compartment carefully, pressing the latches at the same time.

If after replacing the filter there is whistle When the fan is running, most likely the filter is not installed tightly or is deformed. Recheck its position and, if necessary, replace it with a new one.

How to extend the life of your cabin filter Nissan Murano Z50

The service life of the filter depends not only on its quality, but also on operating conditions. Here are some proven ways to extend its life:

• 🚗 Ventilate the interior regularly after travel, especially in wet weather. This prevents moisture from accumulating in the air ducts.
• 🌿 Use antibacterial fragrances (For example, Air Spirit Antibacterial). They slow down the growth of bacteria.
• 🔄 Turn on air recirculation in traffic jams or dusty conditions. This reduces the load on the filter.
• 💨 Clean the air conditioner drain once a season. A clogged drain hole allows moisture and mold to accumulate.

A unique life hack for Murano Z50: If you often drive on dusty roads, install in front of the air conditioner radiator non-woven pre-filter (available at truck parts stores). It will retain large dust and extend the life of the main filter by 1.5–2 times. The main thing is not to forget to clean the prefilter every 2,000–3,000 km.

It is also useful to turn on the air conditioner once a month maximum power for 5–10 minutes. This dries out the system and prevents bacteria from growing. B Murano Z50 for this it is enough:

1. Turn on the ignition.
2. Set temperature to maximum heat.
3. Turn off recirculation.
4. Turn the fan on 4th speed.

This procedure is especially relevant before winter, when air conditioning is rarely used.

FAQ: Frequently asked questions about the cabin filter Nissan Murano Z50

Is it possible to drive without a cabin filter?

Technically yes, but it is highly undesirable. Without a filter, unfiltered air containing dust, bacteria and exhaust gases will enter the cabin. Additionally, debris will accumulate in the air ducts and can damage the furnace fan. B Murano Z50 this is fraught with repairs 8,000–15,000 rubles.

How often should the filter be changed if the machine is rarely used?

Even if the mileage is low, the filter needs to be changed once a year. Over time, the filter material loses its properties, and dust and moisture accumulate in the air ducts. B Murano Z50 with a climate control system, this can lead to sensor malfunctions.

How are carbon filters different from regular ones?

Carbon filters have an additional layer of activated carbon that neutralizes unpleasant odors and harmful gases (such as nitrogen oxides from exhaust). B Murano Z50 They are especially recommended for the city and allergy sufferers. However, their resource is less - coal “exhales” through 8,000–10,000 km.

Can I install a filter from another Nissan model?

No, filters from other models (for example, X-Trail or Qashqai) will not fit in size. B Murano Z50 a unique filter with an article number is used 27277-JM00A/B. The exception is some analogues from Mann or Bosch, which are universal for several Nissan models.

Why is there still a smell after replacing the filter?

If the smell remains, the problem is not in the filter, but in air conditioner evaporator or air ducts. In this case, professional cleaning using a steam generator or chemicals is required. B Murano Z50 this is often used for Wynn's Airco Cleaner.