<em>Nissan Almera G15</em>air filter: how to select and replace it yourself

Nissan Almera G15 is a popular sedan that is valued for its reliability and efficiency. But even the most unpretentious car requires regular maintenance, and replacing the air filter is one of the key procedures. Not only the purity of the air entering the engine, but also fuel consumption, acceleration dynamics and the life of the power unit depend on its condition.

Many owners Almera G15 They underestimate the importance of this detail, considering it a “secondary consumable.” However, a dirty filter can lead to increased wear of the cylinder-piston group, an increase in gasoline consumption by 5–10% and even errors in the operation of electronic systems. In this article, we will look at how to choose the right filter, when to change it, and how to replace it yourself - without contacting service.

Why do you need an air filter? Nissan Almera G15 and how it works

The air filter is a barrier between the atmosphere and the engine. Its task is to clean the air from dust, dirt, insects and even small asphalt particles that can damage the internal surfaces of the engine. B Almera G15 with engines HR16DE (1.6 l) and H4M (1.5 l) a paper filter with a multilayer structure is used, which retains up to 99.5% of contaminants.

How does this work in practice? The air passes through the filter element, where particles settle on the fibers, and the purified stream enters the intake manifold and then into the combustion chambers. If the filter is clogged, the engine begins to “choke”:

• ⚠️ Power decreases — the car accelerates worse, especially on inclines.
• 🛢️ Fuel consumption is increasing — The ECU compensates for the lack of air by increasing the supply of gasoline.
• 🔥 Temperature rises — a lean mixture leads to overheating of the catalyst.

On Almera G15 The filter is located in a plastic housing under the hood, next to the battery. It is easy to access, so replacement can be done in 10–15 minutes even without experience.

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

The manufacturer recommends changing the filter every 15,000 km or once a year (whichever comes first). But in Russian realities, where there are dusty roads and frequent traffic jams, it is better to reduce this interval to 10,000–12,000 km. How do you know when it's time to replace the filter?

Pay attention to these symptoms:

• 🚗 Reduced cravings — the car is “stupid” when accelerating, especially at low speeds.
• 💨 Unusual sound — when the engine is running, you can hear a “whistle” or “hissing” from under the hood (a sign of air leaks through cracks in the housing).
• ⛽ Increased fuel consumption - if previously it took 6-7 liters per 100 km, but now it’s 8-9.
• 🔧 Dirty filter upon visual inspection — if a thick layer of dust or oil stains is visible on the surface.

There are also indirect signs: for example, black carbon deposits on spark plugs or error P0171 (“lean mixture”), which is displayed on the dashboard. If you ignore these signals, the consequences can be serious - even cylinder head gasket breakdown due to detonation.

Original articles and the best analogues for Almera G15

For Nissan Almera G15 (2012–2019) filters with original article numbers are suitable:

• 📌 16546-JD00A - for the engine HR16DE (1.6 l).
• 📌 16546-BM400 - for the engine H4M (1.5 l, restyled models).

The cost of original filters is from 800 to 1,200 rubles. But there are worthy analogues on the market that are not inferior in quality, but are 30–50% cheaper:

Brand	Article	Price, ₽	Features
Mann	C 25 003	600–750	High quality filter material, suitable for dusty regions.
Bosch	1 987 429 630	550–700	A universal option, good moisture impregnation.
Framm	CA 9031	450–600	A budget option, but it protects less well from fine dust.
Sakura	A-1657	350–500	Optimal for urban use, but requires more frequent replacement.

When choosing an analogue, pay attention to density of filter material - for cheap options it is often lower, which is why they become clogged faster. Also check if there is a filter on the housing sealing rubber — it prevents the suction of unfiltered air.

What are the dangers of a low-quality filter?

Cheap filters without impregnation can get wet from condensation and lose their shape. This leads to dirt getting into the engine and accelerated wear of the turbine (if there is one). In worst cases, particles of filter material break off and are sucked into the cylinders, causing scoring on the walls.

Step-by-step instructions for replacing the air filter with Almera G15

Replacing the filter is one of the simplest procedures that even a beginner can handle. You will need:

• 🔧 Phillips screwdriver (or 10mm head).
• 🧴 Rags or vacuum cleaner to clean the case.
• 📦 New filter (check the article before purchasing!).

Algorithm of actions:

1. Open the hood and find the air filter housing - it is located to the right of the battery (if you look in the direction of travel).
2. Unscrew 4 screws on the housing cover (they can be hidden under plastic plugs).
3. Remove the cover and remove the old filter. Pay attention to its condition - if it is deformed or soaked in oil, this is a sign of problems with crankcase ventilation.
4. Clean the case from dust and debris. You can use a vacuum cleaner or a damp cloth (but do not wash the case under running water!).
5. Install a new filter, making sure that it fits tightly, without distortion. The arrow on the filter (if there is one) should point towards the engine.
6. Close the lid and tighten the screws. Do not overtighten them - the plastic may crack!

If after replacement it lights up Check Engine, check:

• 🔌 Is the connector of the mass air flow sensor (MAF) connected?
• 🔍 Are there any foreign objects (rags, tools) left in the case?
• 🚪 Is the lid tightly closed - air leakage can cause an error.

Common replacement mistakes and how to avoid them

Even something as simple as replacing a filter can turn into problems if mistakes are made. Here are the most common:

⚠️ Attention: Never reuse a filter, even if it “appears clean.” Microscopic dust particles already have time to damage the fibers, and such a filter does not provide the required degree of cleaning.

Error 1: Incorrect filter installation. If you mix up the sides (for example, put the filter “back to front”), it will not fit tightly to the housing. This will lead to the suction of unfiltered air and accelerated engine wear. Most filters have an arrow or text on them AIR FLOW, which must coincide with the direction of air flow (from the radiator to the engine).

Mistake 2: Ignoring case cleaning. If you do not remove dust and debris from the housing before installing a new filter, it will immediately enter the engine. In the worst case, this may cause throttle valve jamming or damage to the turbine blades (on supercharged models).

Mistake 3: Using non-original filters without checking. Some "universal" filters may not be the right size or have insufficient density. For example, a filter from Renault Logan looks similar, but does not provide the required degree of cleaning for Almera G15.

Mistake 4: Tightening screws "from the heart." The plastic filter housing is fragile, and if you overtighten the fasteners, it may crack. This will lead to constant dust intake and errors in engine operation.

How to extend the life of your air filter

Although the filter is a consumable, its resource can be increased if you follow simple rules:

• 🌿 Avoid driving on dusty roads — if you have to drive on a dirt road, reduce the speed to 40–50 km/h to reduce air intake.
• 🚿 Blow out the filter periodically — once every 5,000 km, you can carefully blow out the filter with compressed air (but do not wash it with water!).
• 🔧 Check the housing for leaks - even a small crack will allow unfiltered air to enter.
• 🛠️ Monitor the crankcase ventilation system - if it is clogged, oil will enter the filter, shortening its service life.

If you often drive in dusty conditions (for example, on construction sites or in steppe regions), it is worth considering installing zero resistance filter (for example, from K&N). It allows air to pass through better and lasts longer, but requires regular washing with a special compound. However, please note that such filters are not suitable for all operating conditions:

⚠️ Attention: Zero resistance filters are not recommended for city driving with frequent traffic jams. They allow more dust to pass through than standard paper ones and can cause accelerated engine wear at low speeds.

FAQ: Frequently asked questions about the air filter Nissan Almera G15

Is it possible to drive without an air filter?

No! Even short-term driving without a filter will lead to dust and debris entering the cylinders, which will cause burrs on the walls and accelerated wear of piston rings. In the worst case scenario, the engine will need to be overhauled.

How often should the filter be changed if the car is parked in a garage?

Even if you drive little, the filter needs to be changed once every 2 years. Over time, the paper loses its properties, and condensation can accumulate in the body, leading to the growth of bacteria and mold.

Is the filter suitable for Renault Logan or Lada Vesta?

No, these filters are similar in appearance, but have different sizes and the shape of the rubber seal. Using a non-original filter will lead to air leaks and engine operation errors.

What to do if fuel consumption increases after replacing the filter?

Most likely the problem is not in the filter, but in mass air flow sensor (MAF) or air leaks through cracks in the pipes. Check the integrity of the corrugation from the filter to the throttle and clean the air flow sensor with a special spray.

Can the air filter be washed with water?

No! Paper filters are not intended for wet cleaning - they become deformed and lose their filtering properties. Can only be used for cleaning dry compressed air (no more than 3 bar).