Cabin filter <em>Nissan X-Trail T31</em>: where is it located, how to change and which one to choose

Owners Nissan X-Trail T31 (2007–2013 model years) are often faced with the question: where is the cabin filter hidden in their crossover? Unlike many modern cars, where access to the filter is provided from the passenger compartment, in T31 the manufacturer hid it in a not so obvious place. This part is responsible for cleaning the air entering the cabin through the ventilation system, and its timely replacement is the key to the health of the driver and passengers.

According to service manuals Nissan, cabin filter in X-Trail T31 located under the hood, in a special plastic box next to the windshield. However, getting to it is not so easy: you will need to remove the plastic trim and part of the seal. In this article we will look in detail at how to find a filter, what tools will be needed for replacement, and what to look for when choosing a new consumable.

Where exactly is the cabin filter located? Nissan X-Trail T31?

B X-Trail T31 (including restyled versions 2010–2013) cabin filter installed passenger side under the hood, in the niche between the engine shield and the windshield. Exact location:

• 📍 Under the plastic cover (decorative cover) that covers the space between the hood and the windshield.
• 🔧 Next to the air intake box — the filter is housed in a black plastic rectangular housing.
• 🚗 On the right in the direction of travel (if standing in front of the car), closer to the passenger side.

To see the filter you need to:

1. Open the hood and secure it.
2. Remove the rubber seal (if it interferes with access).
3. Unclip the plastic clips holding the decorative trim (usually there are 4-5 pieces).
4. Lift the cover and underneath it you will see a black box with a lid, which is the filter housing.

It is important to note that in some trim levels X-Trail T31 (for example, with air conditioning Climate Control) the filter housing may be slightly offset closer to the center. Also on diesel versions (2.0 dCi) access is complicated by the additional turbine air duct.

Signs of a clogged filter: when is it time to change it?

The manufacturer recommends replacing the cabin filter every 15–20 thousand km or once a year. However, in the conditions of Russian roads (dust, poplar fluff, smog), this interval should be reduced to 10–12 thousand km. The following symptoms indicate that the filter requires replacement:

• 🌬️ Weak air flow from the deflectors even at maximum fan speed.
• 🤧 Constant smell of dust or mold when the airflow is turned on.
• 🚗 Fogging of windows from the inside, which does not pass even when the air conditioner is on.
• 🔊 Whistle or noise when the fan is running at high speeds.
• 🦠 Allergic reactions in passengers (sneezing, coughing) during travel.

If you ignore these signs, a clogged filter can lead to:

• 🔥 Overheating of the climate control system (due to reduced air flow).
• 🦠 Reproduction of bacteria and fungi in the ventilation system.
• 💨 Increased fan load, which reduces its resource.

Step-by-step instructions: how to remove and replace the filter

To replace the cabin filter in Nissan X-Trail T31 you will need:

• 🔧 Flat screwdriver (or plastic clip remover).
• 🧹 Vacuum cleaner or compressor (to clean the case).
• 🧴 Air duct cleaner (optional, e.g. Liqui Moly Klima-Anlagen-Reiniger).
• 🚗 New filter (see table below for suitable items).

Replacement algorithm:

1. Open the hood and secure it. Remove the rubber seal (if it is in the way).
2. Snap off the clips decorative overlay (usually 4–5 pieces). Carefully pry the trim off with a screwdriver, starting from the passenger side.
3. Remove the filter housing cover — it is attached with two latches on the sides. Pull the cover up and towards you.
4. Remove the old filter. It may be glued to the body due to moisture - do not pull sharply to avoid tearing it.
5. Clean the case remove dust and debris with a vacuum cleaner. If heavily soiled, use a damp cloth.
6. Install a new filter, observing the direction of the air flow (usually indicated by an arrow on the filter).
7. Reassemble everything in reverse order, making sure that the clips of the pad snap into place tightly.

If an unpleasant odor remains after replacement, it is recommended to treat the ventilation system with a special cleaner (for example, Step Up Air Conditioner Cleaner). To do this:

1. Turn on air recirculation.
2. Set the fan speed to maximum.
3. Spray the product into the air intake (usually located under the windshield on the passenger side).
4. Wait 10–15 minutes, then ventilate the interior.

Which filter to choose: original vs analogues

For Nissan X-Trail T31 The following types of filters are suitable:

• 🔹 Regular (dusty) — retains only large particles (dust, fluff, leaves).
• 🔹 Coal — additionally absorb harmful gases and unpleasant odors.
• 🔹 Electrostatic — captures fine dust and allergens (optimal for allergy sufferers).

The table below contains verified article numbers of original and analog filters:

Filter type	Article	Manufacturer	Notes
Original (dust)	27277-JD00A	Nissan	Suitable for all versions of T31, including facelift
Original (carbon)	27277-4M025	Nissan	Retains odors better, but more expensive
Analogue (coal)	CUK 2729	Mann-Filter	High quality, often recommended by services
Analogue (dust)	LA 230	Filtron	Budget option, good price/quality ratio
Analog (electrostatic)	AP 113/2	Bosch	Suitable for regions with high pollution

When choosing, pay attention to:

• 📏 Dimensions: Standard for T31 is 200x200x30 mm (may vary slightly).
• 🔄 Flow direction: there must be an arrow or inscription on the filter Air Flow.
• 🔍 Seal quality: Cheap filters may leak untreated air around the edges.

Common replacement mistakes and how to avoid them

Even experienced car owners sometimes make mistakes when replacing the cabin filter. Here are the most common of them:

• 🔧 Incorrect installation in flow direction. If you mix up the sides, the filter will not only not clean the air, but will also clog faster. Always follow the arrow (it should indicate down, towards the salon).
• 🧩 Housing cover not tightly closed. This leads to the suction of unfiltered air and whistling when the fan operates. Check that the latches engage with a characteristic click..
• 🚫 Ignoring case cleaning. If you leave dirt in the box, the new filter will clog 2-3 times faster. Always vacuum or wipe down the case before installation.
• 🔨 Using metal tools to remove clips. This may damage the plastic latches. It is better to use a plastic puller or a screwdriver wrapped in electrical tape..

What to do if the pad clips are broken?

If the plastic clips are cracked, they can be replaced with universal ones (item no. 90467-01200 for Nissan). Clips from Toyota or Honda similar size. As a last resort, the overlay can be fixed with double-sided tape, but this is a temporary solution.

Another typical problem is filter size mismatch. Some analogues (especially cheap ones) may be 1–2 mm wider or narrower than the original. In this case:

• If the filter already, it will leak air around the edges - replace it with a suitable one.
• If the filter wider, it can be carefully trimmed with a knife (but no more than 2–3 mm).

How much does it cost to replace it at a service center versus doing it yourself?

Cost of replacing a cabin filter in Nissan X-Trail T31 varies depending on region and type of service:

Service type	Cost of work (rub.)	Filter cost (RUB)	Total (RUB)
Official dealer Nissan	1 200–1 800	1,500–2,500 (original)	2 700–4 300
Independent service	500–1 000	600–1,500 (analog)	1 100–2 500
Self-replacement	0	600–2 500	600–2 500

As can be seen from the table, DIY replacement saves up to 70% cost. Moreover, the process takes no more than 20–30 minutes, even for beginners. The only case when you should contact the service is if you are afraid of damaging the clips of the lining or the filter housing.

Advice: if you decide to change the filter yourself, order the consumables in advance (for example, at Exist.ru or Autodoc) - this way you will save up to 30% compared to purchasing in a retail store.

Additional tips for caring for your ventilation system

Replacing the filter is only part of caring for your climate control system. To ensure that the air in your cabin always remains clean, follow these recommendations:

• 🌿 Ventilate the interior regularly, especially after rain or car wash. Humidity promotes the growth of bacteria.
• 🚿 Dry the conditioner before turning off: 2-3 minutes before the end of the trip, turn off the airflow, but leave the air conditioning on.
• 🧴 Use antibacterial cleaners 1–2 times a year (for example, Wynns Airco Cleaner).
• 🔄 Change the filter before winter — a clean filter improves the operation of the stove and reduces glass fogging.

If in your X-Trail T31 installed air conditioner, pay attention to the signs that it needs to be cleaned:

• 🤒 Appearance musty smell when the airflow is turned on.
• 💧 Condensation under the car (in the area of the passenger seat) after a long period of parking.
• 🌡️ Reduced cooling efficiency (the air conditioner is blowing weaker or the air is not as cold).

FAQ: Frequently asked questions about the cabin filter Nissan X-Trail T31

Is it possible to drive without a cabin filter?

Technically yes, but it is highly discouraged. Without a filter, unpurified air containing dust, insects and harmful gases will enter the cabin. In addition, dirt will settle on the stove radiator, which over time will lead to its clogging and reduced heating efficiency. In the long run, this can result in expensive repairs to your climate control system.

Which filter is better: carbon or regular?

The choice depends on the operating conditions:

• Coal preferable if you often drive around the city with traffic jams (absorbs exhaust gases) or suffer from allergies.
• Normal (dust) Suitable for country trips or regions with clean air. It is cheaper and does not require frequent replacement.

Carbon filters are also recommended if the smell of gasoline or oil is often felt in the cabin (for example, with worn pipes).

How many filters does X-Trail T31 have? Some say there are two.

B Nissan X-Trail T31 (2007–2013) installed one cabin filter. However, some sources mention a “second filter” - this is a mistake. The confusion arises because newer models Nissan (For example, X-Trail T32) there may actually be two filters (for the driver and passenger sides). B T31 there is only one filter, and it is located on the passenger side.

Is it possible to wash the cabin filter instead of replacing it?

Theoretically it can be washed dusty filter with soap and water, but this is a temporary solution. After washing:

• The filter will lose up to 50% of its effectiveness (the pores will become clogged with dirt).
• The paper backing may become deformed and become wet.
• It is useless to wash the carbon filter - the carbon layer is not restored.

If you decide to rinse the filter, use soft brush and vacuum cleaner (without water), and after drying, treat it with an antibacterial spray. But it’s better to replace it with a new one.

Why did the air in the cabin become weaker after replacing the filter?

This can happen for several reasons:

• Filter installed incorrectly (the sides are mixed up or the housing cover is not tightly closed).
• Air ducts are clogged — dirt has accumulated in front of the filter (the housing needs to be cleaned).
• Heater fan is faulty (check its operation at all speeds).
• Air conditioner radiator clogged (requires flushing or replacement).

First, check that the filter is installed correctly. If the problem persists, inspect the chassis for debris or damage.