Where is the cabin filter on a Nissan Sunny: location, replacement and nuances

Owners Nissan Sunny (especially models B15 And B16) are often faced with the question: where is the cabin filter hidden in this car? Unlike many modern cars, where the filter is located behind the glove compartment or under the hood, in Sunny its location can be problematic. This article will not only show the exact location of the filter, but will also help you understand the nuances of replacing it, choosing analogues, and signs of wear.

Cabin filter in Nissan Sunny - a detail that is often ignored until problems arise: the smell of mold, weak airflow from the stove or constant fog on the windows. Meanwhile, replacing it takes no more than 15 minutes, and the cost of the original filter rarely exceeds 1000 rubles. The main thing is to know where to look and how to remove the cover correctly.

The exact location of the cabin filter in Nissan Sunny

B Nissan Sunny (including restyled versions) cabin filter installed under the dashboard on the passenger side, but not behind the glove compartment, as in most cars, but a little deeper - behind the center console. To get to it you will need:

1. Open the passenger door and move the seat as far back as possible.
2. Remove the plastic pad under the passenger's feet (it is secured with 2-3 clips).
3. Behind it you will see a rectangular filter cover with latches on the sides.

On some versions Sunny (for example, with climate control) access may be difficult due to additional air ducts. In this case, you will have to first remove the lower part of the dashboard or disconnect the temperature sensor connector.

Step-by-step instructions for replacing the filter

The process of replacing the cabin filter with Nissan Sunny does not require special tools, but will require accuracy. Follow this algorithm:

1. Preparation: Park the vehicle on a level surface, turn off the engine and turn off the ignition. Raise the passenger seat to its highest position.
2. Removing the trim: Pry up the plastic pad under the passenger's feet (use a flathead screwdriver or plastic pick). The clips are fragile - do not use excessive force!
3. Removing the cover: After removing the cover, you will see a gray or black plastic cover with the inscription AIR FILTER or arrows. Press the latches on the sides and pull the cover towards you.
4. Removing the filter: The old filter may be jammed by rubber bands or guides - carefully pull it out without deforming the frame.
5. Installing a new: Check the direction of the arrows on the new filter (they must match the direction of airflow →). Insert the filter until it clicks.
6. Assembly: Replace the cover, snap it into place, then return the pad to the passenger's feet.

Compatibility of the new filter with the Sunny model (B15/B16)

Direction of the arrows on the filter (must point downwards)

Integrity of the clips on the plastic cover

No debris in the air duct after removing the old filter -->

If the filter is stuck or falls apart, use a vacuum cleaner to clean the housing. If the latches on the cover are damaged, they can be temporarily fixed with electrical tape, but it is better to replace the cover (the original part number is 27277-BM400).

Which cabin filter to choose for Nissan Sunny?

Original cabin filter for Nissan Sunny has an article number 27277-BM400 (coal) or 27277-BM401 (regular). However, there are dozens of analogues on the market that are suitable in size and characteristics. Below is a table with tested options:

Brand	Article	Type	Average price (RUB)	Features
Nissan	27277-BM400	Coal	800–1200	Original, high quality filtration
Mann Filter	CU 22011	Coal	600–900	German quality, good dust holding capacity
Bosch	1 987 429 655	Regular	400–600	Budget option, suitable for urban use
Filtron	K 1152	Coal	500–700	Polish manufacturer, optimal price/quality ratio
Sakura	CAF22011	Coal	300–500	Budget analogue, suitable for rare replacements

When choosing, pay attention to dimensions: standard filter for Sunny has dimensions of approximately 200×160×25 mm. Carbon filters are better at removing odors, but they clog faster in high humidity conditions. If you drive mainly on dusty roads, give preference to filters with antibacterial impregnation (For example, Mann Filter CU 22011).

⚠️ Attention: Do not buy filters without packaging or with a damaged frame. Cheap counterfeits can disintegrate in the air duct, which will lead to clogging of the air conditioner evaporator.

Signs that it's time to change the cabin filter

The manufacturer recommends changing the cabin filter every 15,000 km or once a year. However, in real conditions (especially in large cities or with frequent use of air conditioning), this period is reduced to 8–10 thousand km. The following symptoms indicate the need for replacement:

• 🚗 Weak air flow from the deflectors even at maximum fan speed.
• 🌫️ Constant fog on the windows, which does not disappear even after turning on the blower.
• 👃 Unpleasant smell (mold, dampness) when turning on the stove or air conditioner.
• 💨 Dust on the dashboard, which appears immediately after turning on the ventilation.
• 🤧 Allergic reactions (sneezing, itchy nose) in passengers.

If you ignore these signs, the filter turns into a breeding ground for bacteria, and dust and dirt enter the air conditioner evaporator, which can lead to its breakdown. Owners of Nissan Sunny with a mileage of more than 100,000 km note that a clogged filter impairs the performance of the heater by 30–40% - this is especially critical in winter.

Common mistakes when replacing the cabin filter

Even such a simple procedure as replacing the cabin filter can be ruined by mistakes. That's what it's impossible do:

• 🔧 Use force when removing a cover or cover. Broken clips lead to squeaks and rattling of the panel.
• 🔄 Install the filter backwards. The arrows on the frame should coincide with the direction of airflow (usually down).
• 🧹 Ignore duct cleaning. If there is dirt left in the housing, the new filter will clog 2 times faster.
• 🛠️ Trying to wash the old filter. Paper and carbon filters cannot be restored - they can only be replaced.
• 🚫 Buy a filter by eye. Even if it looks similar, a discrepancy in size will lead to the leakage of unfiltered air.

Another common problem is incomplete closing of the lid after installing the filter. If the latches are not locked, dust will enter the interior through the cracks. Check the seal by lightly pressing the cover after installation.

⚠️ Attention: After replacing the filter, turn on the fan at full power and check for any extraneous noise (whistles, pops). This may indicate improper installation or damage to the ductwork.

Nissan Sunny modifications: are there any differences?

Cabin filters in different generations Nissan Sunny have a similar location, but there are nuances:

• Nissan Sunny B14 (1998–2000): The filter may not be present from the factory (installed as an option). To install it, you will need to purchase an additional mounting housing.
• Nissan Sunny B15 (2000–2004): Standard location under the panel. On versions with climate control, access is difficult due to additional sensors.
• Nissan Sunny B16 (2004–2006): The filter is moved closer to the central tunnel. The cover can be secured with screws (a Phillips screwdriver is required).
• Nissan Sunny for the Japanese market (N16): The filter is located behind the glove compartment, as in European models. The glove compartment is completely removed for access.

If you are unsure about modifying your Sunny, check VIN code or compare photos of the interior with spare parts catalogs. For example, for Sunny B15 with air conditioning and Sunny B15 With climate control, even the filter cover part numbers may differ.

How to determine the Sunny modification by VIN code?

The first 3 characters of the VIN indicate the manufacturer and model:

- JN1 — Nissan Sunny for the Japanese domestic market.

- SB1 or NB1 — export versions for Europe and Asia.

The fourth character indicates the body type (for example, B - sedan, W - station wagon).

The fifth character is generation (1 for B14, 5 for B15, 6 for B16).

Example: VIN JN1SB15EXU123456 stands for Nissan Sunny B15 sedan for export.

Alternative ways to improve cabin air quality

Replacing the cabin filter is only part of the measures to maintain clean air in Nissan Sunny. For an integrated approach it is recommended:

• 🧼 Cleaning the air conditioner evaporator special foam cleaners (for example, Liqui Moly Klima-Anlagen-Reiniger). Conducted once every 2 years.
• 🌿 Use of flavors with antibacterial effect (For example, Sonax Xtreme Fresh).
• 🔥 Warming up the interior before turning on the air conditioner in winter (prevents mold formation).
• 🚿 Regular vacuuming of the interior, especially in the areas under the seats and at the feet of passengers.

If a persistent smell of dampness appears in the cabin, and replacing the filter does not help, the problem may lie in clogged air conditioner drain. B Nissan Sunny The drain hole is located under the car, next to the right front door. It can be cleaned with wire or compressed air.

FAQ: Frequently asked questions about the Nissan Sunny cabin filter

Is it possible to drive without a cabin filter?

Technically, yes, but this will lead to rapid clogging of the air conditioner evaporator and dust entering the cabin. In the long term, this can lead to a broken furnace fan or mold growth in the air ducts.

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

Even with low mileage, the filter should be changed every 1–1.5 years. Over time, it loses its properties due to humidity and dust settling, even if the car is parked in a garage.

What is the difference between a carbon filter and a regular one?

The carbon filter additionally absorbs harmful gases (such as exhaust) and unpleasant odors thanks to a layer of activated carbon. However, it clogs faster and is more expensive. A regular filter is only effective against dust and pollen.

Is it possible to install a filter with a larger area for better filtration?

No, this will lead to a violation of the seal and leakage of unfiltered air through the cracks. Use only filters recommended for your model Sunny.

Why does the stove blow weaker after replacing the filter?

The new filter probably has a denser structure (especially if it is a carbon version). This is a temporary phenomenon - after 1-2 days the air flow returns to normal. If the problem persists, check that the installation is correct.